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_spec8_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:06:53,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:06:53,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:06:53,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:06:53,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:06:53,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:06:53,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:06:53,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:06:53,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:06:53,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:06:53,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:06:53,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:06:53,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:06:53,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:06:53,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:06:53,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:06:53,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:06:53,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:06:53,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:06:53,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:06:53,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:06:53,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:06:53,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:06:53,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:06:53,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:06:53,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:06:53,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:06:53,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:06:53,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:06:53,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:06:53,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:06:53,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:06:53,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:06:53,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:06:53,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:06:53,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:06:53,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:06:53,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:06:53,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:06:53,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:06:53,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:06:53,313 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 15:06:53,327 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:06:53,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:06:53,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:06:53,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:06:53,329 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:06:53,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:06:53,329 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:06:53,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:06:53,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:06:53,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:06:53,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:06:53,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:06:53,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:06:53,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:06:53,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:06:53,331 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:06:53,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:06:53,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:06:53,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:06:53,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:06:53,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:06:53,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:06:53,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:06:53,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:06:53,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:06:53,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:06:53,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:06:53,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:06:53,334 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 15:06:53,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:06:53,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:06:53,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:06:53,695 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:06:53,695 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:06:53,696 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product15.cil.c [2019-10-07 15:06:53,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7ef36e17/4fea5d76d5ca42b88e6f897a3dd0a959/FLAG371b387bc [2019-10-07 15:06:54,317 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:06:54,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product15.cil.c [2019-10-07 15:06:54,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7ef36e17/4fea5d76d5ca42b88e6f897a3dd0a959/FLAG371b387bc [2019-10-07 15:06:54,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7ef36e17/4fea5d76d5ca42b88e6f897a3dd0a959 [2019-10-07 15:06:54,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:06:54,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:06:54,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:06:54,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:06:54,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:06:54,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:06:54" (1/1) ... [2019-10-07 15:06:54,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120087b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:54, skipping insertion in model container [2019-10-07 15:06:54,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:06:54" (1/1) ... [2019-10-07 15:06:54,620 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:06:54,689 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:06:55,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:06:55,466 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:06:55,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:06:55,662 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:06:55,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55 WrapperNode [2019-10-07 15:06:55,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:06:55,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:06:55,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:06:55,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:06:55,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55" (1/1) ... [2019-10-07 15:06:55,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55" (1/1) ... [2019-10-07 15:06:55,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55" (1/1) ... [2019-10-07 15:06:55,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55" (1/1) ... [2019-10-07 15:06:55,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55" (1/1) ... [2019-10-07 15:06:55,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55" (1/1) ... [2019-10-07 15:06:55,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55" (1/1) ... [2019-10-07 15:06:55,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:06:55,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:06:55,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:06:55,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:06:55,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:06:55,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:06:55,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:06:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:06:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:06:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:06:55,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:06:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:06:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:06:55,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:06:55,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:06:55,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:06:55,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:06:55,949 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:06:55,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:06:55,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:06:55,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:06:55,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:06:55,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:06:55,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:06:55,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:06:55,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:06:55,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:06:55,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:06:55,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:06:55,953 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:06:55,954 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:06:55,954 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:06:55,955 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:06:55,955 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:06:55,955 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-07 15:06:55,956 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:06:55,956 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:06:55,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:06:55,957 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:06:55,957 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:06:55,957 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:06:55,957 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:06:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:06:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:06:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:06:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:06:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:06:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:06:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:06:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:06:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:06:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:06:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:06:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:06:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:06:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:06:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:06:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:06:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:06:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:06:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:06:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:06:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:06:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:06:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:06:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:06:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:06:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:06:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:06:55,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:06:55,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:06:55,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:06:55,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:06:55,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:06:55,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:06:55,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:06:55,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:06:55,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:06:55,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:06:55,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:06:55,966 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:06:55,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:06:55,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:06:55,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:06:55,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:06:55,968 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:06:55,968 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:06:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:06:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:06:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:06:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:06:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:06:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:06:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:06:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:06:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:06:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:06:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:06:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:06:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:06:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:06:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:06:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:06:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:06:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:06:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:06:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:06:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:06:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:06:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:06:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:06:55,975 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:06:55,975 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:06:55,975 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:06:55,975 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:06:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:06:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:06:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:06:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:06:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:06:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:06:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:06:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:06:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:06:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:06:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:06:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:06:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:06:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:06:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:06:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:06:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:06:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:06:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:06:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:06:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:06:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:06:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:06:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:06:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:06:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:06:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:06:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:06:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:06:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:06:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:06:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:06:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:06:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:06:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:06:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:06:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:06:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:06:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:06:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:06:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:06:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:06:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:06:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:06:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:06:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:06:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:06:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:06:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:06:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-07 15:06:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:06:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:06:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:06:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:06:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:06:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:06:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:06:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:06:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:06:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:06:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:06:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:06:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:06:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:06:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:06:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:06:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:06:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:06:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:06:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:06:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:06:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:06:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:06:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:06:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:06:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:06:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:06:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:06:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:06:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:06:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:06:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:06:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:06:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:06:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:06:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:06:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:06:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:06:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:06:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:06:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:06:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:06:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:06:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:06:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:06:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:06:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:06:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:06:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:06:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:06:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:06:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:06:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:06:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:06:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:06:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:06:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:06:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:06:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:06:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:06:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:06:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:06:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:06:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:06:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:06:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:06:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:06:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:06:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:06:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:06:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:06:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:06:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:06:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:06:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:07:00,462 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:07:00,462 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:07:00,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:00 BoogieIcfgContainer [2019-10-07 15:07:00,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:07:00,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:07:00,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:07:00,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:07:00,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:06:54" (1/3) ... [2019-10-07 15:07:00,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed6f628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:00, skipping insertion in model container [2019-10-07 15:07:00,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:55" (2/3) ... [2019-10-07 15:07:00,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed6f628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:00, skipping insertion in model container [2019-10-07 15:07:00,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:00" (3/3) ... [2019-10-07 15:07:00,472 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product15.cil.c [2019-10-07 15:07:00,481 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:07:00,489 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:07:00,501 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:07:00,529 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:07:00,529 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:07:00,529 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:07:00,529 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:07:00,529 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:07:00,529 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:07:00,529 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:07:00,530 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:07:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states. [2019-10-07 15:07:00,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-07 15:07:00,569 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:00,572 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 15:07:00,574 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:00,580 INFO L82 PathProgramCache]: Analyzing trace with hash -542313132, now seen corresponding path program 1 times [2019-10-07 15:07:00,590 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:00,590 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:00,591 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:00,591 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:00,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:01,192 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 15:07:01,192 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:01,193 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:01,193 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:07:01,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:07:01,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:07:01,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:07:01,214 INFO L87 Difference]: Start difference. First operand 344 states. Second operand 2 states. [2019-10-07 15:07:01,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:01,287 INFO L93 Difference]: Finished difference Result 454 states and 535 transitions. [2019-10-07 15:07:01,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:07:01,289 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-07 15:07:01,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:01,306 INFO L225 Difference]: With dead ends: 454 [2019-10-07 15:07:01,306 INFO L226 Difference]: Without dead ends: 302 [2019-10-07 15:07:01,311 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 15:07:01,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-10-07 15:07:01,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2019-10-07 15:07:01,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-10-07 15:07:01,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 356 transitions. [2019-10-07 15:07:01,388 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 356 transitions. Word has length 114 [2019-10-07 15:07:01,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:01,390 INFO L462 AbstractCegarLoop]: Abstraction has 302 states and 356 transitions. [2019-10-07 15:07:01,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:07:01,390 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 356 transitions. [2019-10-07 15:07:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 15:07:01,394 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:01,395 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 15:07:01,395 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:01,396 INFO L82 PathProgramCache]: Analyzing trace with hash -84571851, now seen corresponding path program 1 times [2019-10-07 15:07:01,396 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:01,396 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:01,396 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:01,396 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:01,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:01,648 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 15:07:01,649 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:01,650 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:01,650 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:01,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:01,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:01,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:01,655 INFO L87 Difference]: Start difference. First operand 302 states and 356 transitions. Second operand 3 states. [2019-10-07 15:07:01,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:01,721 INFO L93 Difference]: Finished difference Result 439 states and 507 transitions. [2019-10-07 15:07:01,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:01,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-07 15:07:01,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:01,731 INFO L225 Difference]: With dead ends: 439 [2019-10-07 15:07:01,732 INFO L226 Difference]: Without dead ends: 304 [2019-10-07 15:07:01,735 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 15:07:01,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-10-07 15:07:01,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2019-10-07 15:07:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-10-07 15:07:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 358 transitions. [2019-10-07 15:07:01,781 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 358 transitions. Word has length 115 [2019-10-07 15:07:01,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:01,781 INFO L462 AbstractCegarLoop]: Abstraction has 304 states and 358 transitions. [2019-10-07 15:07:01,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 358 transitions. [2019-10-07 15:07:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 15:07:01,791 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:01,791 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 15:07:01,792 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:01,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:01,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1401378567, now seen corresponding path program 1 times [2019-10-07 15:07:01,792 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:01,793 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:01,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:01,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:01,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:02,002 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 15:07:02,002 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:02,003 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:02,003 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:02,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:02,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:02,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:02,006 INFO L87 Difference]: Start difference. First operand 304 states and 358 transitions. Second operand 3 states. [2019-10-07 15:07:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:02,060 INFO L93 Difference]: Finished difference Result 590 states and 723 transitions. [2019-10-07 15:07:02,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:02,061 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-07 15:07:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:02,067 INFO L225 Difference]: With dead ends: 590 [2019-10-07 15:07:02,067 INFO L226 Difference]: Without dead ends: 344 [2019-10-07 15:07:02,070 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 15:07:02,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2019-10-07 15:07:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 343. [2019-10-07 15:07:02,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-07 15:07:02,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 426 transitions. [2019-10-07 15:07:02,123 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 426 transitions. Word has length 124 [2019-10-07 15:07:02,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:02,124 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 426 transitions. [2019-10-07 15:07:02,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:02,124 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 426 transitions. [2019-10-07 15:07:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 15:07:02,127 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:02,127 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 15:07:02,128 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:02,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:02,128 INFO L82 PathProgramCache]: Analyzing trace with hash 732457659, now seen corresponding path program 1 times [2019-10-07 15:07:02,128 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:02,129 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:02,129 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:02,129 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:02,285 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 15:07:02,286 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:02,286 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:02,286 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:02,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:02,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:02,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:02,287 INFO L87 Difference]: Start difference. First operand 343 states and 426 transitions. Second operand 3 states. [2019-10-07 15:07:02,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:02,327 INFO L93 Difference]: Finished difference Result 704 states and 922 transitions. [2019-10-07 15:07:02,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:02,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-10-07 15:07:02,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:02,333 INFO L225 Difference]: With dead ends: 704 [2019-10-07 15:07:02,334 INFO L226 Difference]: Without dead ends: 419 [2019-10-07 15:07:02,335 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 15:07:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2019-10-07 15:07:02,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2019-10-07 15:07:02,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-07 15:07:02,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 556 transitions. [2019-10-07 15:07:02,370 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 556 transitions. Word has length 125 [2019-10-07 15:07:02,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:02,370 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 556 transitions. [2019-10-07 15:07:02,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 556 transitions. [2019-10-07 15:07:02,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 15:07:02,381 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:02,381 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 15:07:02,381 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:02,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:02,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1766293607, now seen corresponding path program 1 times [2019-10-07 15:07:02,382 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:02,383 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:02,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:02,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:02,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:02,525 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 15:07:02,526 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:02,526 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:02,526 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:02,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:02,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:02,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:02,528 INFO L87 Difference]: Start difference. First operand 418 states and 556 transitions. Second operand 3 states. [2019-10-07 15:07:02,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:02,566 INFO L93 Difference]: Finished difference Result 923 states and 1302 transitions. [2019-10-07 15:07:02,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:02,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-07 15:07:02,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:02,575 INFO L225 Difference]: With dead ends: 923 [2019-10-07 15:07:02,575 INFO L226 Difference]: Without dead ends: 563 [2019-10-07 15:07:02,578 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 15:07:02,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-10-07 15:07:02,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 562. [2019-10-07 15:07:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-07 15:07:02,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 804 transitions. [2019-10-07 15:07:02,633 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 804 transitions. Word has length 126 [2019-10-07 15:07:02,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:02,634 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 804 transitions. [2019-10-07 15:07:02,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:02,634 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 804 transitions. [2019-10-07 15:07:02,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 15:07:02,639 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:02,640 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 15:07:02,640 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:02,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:02,641 INFO L82 PathProgramCache]: Analyzing trace with hash -403853229, now seen corresponding path program 1 times [2019-10-07 15:07:02,641 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:02,641 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:02,642 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:02,642 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:02,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:03,023 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 15:07:03,023 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:03,024 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:03,024 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:03,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:03,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:03,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:03,025 INFO L87 Difference]: Start difference. First operand 562 states and 804 transitions. Second operand 3 states. [2019-10-07 15:07:03,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:03,063 INFO L93 Difference]: Finished difference Result 730 states and 993 transitions. [2019-10-07 15:07:03,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:03,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-07 15:07:03,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:03,070 INFO L225 Difference]: With dead ends: 730 [2019-10-07 15:07:03,070 INFO L226 Difference]: Without dead ends: 596 [2019-10-07 15:07:03,071 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 15:07:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-07 15:07:03,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2019-10-07 15:07:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2019-10-07 15:07:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 836 transitions. [2019-10-07 15:07:03,106 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 836 transitions. Word has length 128 [2019-10-07 15:07:03,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:03,109 INFO L462 AbstractCegarLoop]: Abstraction has 596 states and 836 transitions. [2019-10-07 15:07:03,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 836 transitions. [2019-10-07 15:07:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-07 15:07:03,114 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:03,114 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 15:07:03,114 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:03,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:03,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1995368996, now seen corresponding path program 1 times [2019-10-07 15:07:03,115 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:03,115 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:03,115 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:03,116 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:03,412 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 15:07:03,412 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:03,412 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:03,412 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 15:07:03,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:07:03,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:07:03,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 15:07:03,415 INFO L87 Difference]: Start difference. First operand 596 states and 836 transitions. Second operand 11 states. [2019-10-07 15:07:05,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:05,621 INFO L93 Difference]: Finished difference Result 670 states and 906 transitions. [2019-10-07 15:07:05,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 15:07:05,622 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-10-07 15:07:05,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:05,626 INFO L225 Difference]: With dead ends: 670 [2019-10-07 15:07:05,626 INFO L226 Difference]: Without dead ends: 602 [2019-10-07 15:07:05,627 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 15:07:05,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-07 15:07:05,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-10-07 15:07:05,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-10-07 15:07:05,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 837 transitions. [2019-10-07 15:07:05,659 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 837 transitions. Word has length 213 [2019-10-07 15:07:05,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:05,660 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 837 transitions. [2019-10-07 15:07:05,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:07:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 837 transitions. [2019-10-07 15:07:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-07 15:07:05,664 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:05,665 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 15:07:05,665 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:05,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:05,665 INFO L82 PathProgramCache]: Analyzing trace with hash 892104942, now seen corresponding path program 1 times [2019-10-07 15:07:05,666 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:05,666 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:05,666 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:05,666 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:06,231 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 15:07:06,231 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:06,232 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:07:06,232 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 15:07:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:06,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:07:06,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:07:07,109 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 15:07:07,109 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:07:07,595 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 15:07:07,596 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:07:07,628 INFO L162 IcfgInterpreter]: Started Sifa with 186 locations of interest [2019-10-07 15:07:07,628 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:07:07,635 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:07:07,643 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:07:07,644 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:07:54,821 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 678 [2019-10-07 15:07:58,061 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 281 DAG size of output: 229 [2019-10-07 15:07:58,443 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 710 [2019-10-07 15:07:58,722 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 710 [2019-10-07 15:07:58,917 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 710 [2019-10-07 15:07:59,068 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:07:59,685 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:08:00,350 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:08:00,974 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:08:01,113 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:08:01,746 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:08:03,004 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1008 DAG size of output: 1006 [2019-10-07 15:08:03,593 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:08:03,783 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:08:04,374 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:08:05,000 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:08:05,594 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:08:05,788 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:08:06,414 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:08:06,437 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 556 for LOIs [2019-10-07 15:08:06,725 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:08:06,953 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:08:07,432 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 941 [2019-10-07 15:08:07,434 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1040 for LOIs [2019-10-07 15:08:07,994 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:08,587 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:08,935 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:09,761 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:10,341 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:10,919 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:11,110 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:11,906 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:12,517 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:13,079 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:13,273 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:14,074 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:15,166 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1040 [2019-10-07 15:08:15,725 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:15,927 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:16,723 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:17,303 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:17,878 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:18,071 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:18,865 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:19,442 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:20,006 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:20,198 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:21,003 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:21,566 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:22,125 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:22,323 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:23,107 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:23,667 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:24,239 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:24,431 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:25,228 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:25,790 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:26,351 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:26,555 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:27,354 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:27,916 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:28,475 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:28,671 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:29,474 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:30,035 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:30,603 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:30,795 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:31,587 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:32,149 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:32,712 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:32,903 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:33,708 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:34,274 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:34,852 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:08:35,044 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:35,839 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:36,703 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:37,503 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:37,723 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:38,527 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:40,004 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:08:40,805 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:41,013 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:41,816 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:42,620 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:43,424 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:43,617 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:44,415 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:08:45,274 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:08:46,085 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:08:46,279 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:08:47,086 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:08:47,909 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:08:48,715 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:08:48,914 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:08:49,720 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:08:50,540 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:08:51,348 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:08:51,546 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:08:52,357 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:08:53,858 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:08:54,685 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:08:54,904 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:08:55,717 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:08:56,537 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:08:57,351 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:08:57,553 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:08:58,372 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:09:00,116 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:09:00,919 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:01,117 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:01,908 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:03,358 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:09:04,157 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:04,360 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:05,166 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:05,972 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:06,780 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:06,998 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:07,807 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:09,266 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:09:10,059 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:10,267 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:11,066 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:12,504 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:09:13,306 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:13,504 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:14,300 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:15,101 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:15,909 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:16,104 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:16,902 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:09:18,318 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1168 DAG size of output: 1164 [2019-10-07 15:09:19,121 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 15:09:19,318 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:20,124 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:09:20,946 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:09:21,755 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:09:21,957 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:22,760 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:09:24,116 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1168 DAG size of output: 1164 [2019-10-07 15:09:24,924 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 15:09:25,116 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:25,925 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:09:27,286 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1164 [2019-10-07 15:09:28,095 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 15:09:28,295 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:29,103 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:09:30,463 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1175 DAG size of output: 1166 [2019-10-07 15:09:31,284 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:09:31,637 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:32,443 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1168 [2019-10-07 15:09:32,694 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:09:32,695 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 15:09:32,704 INFO L168 Benchmark]: Toolchain (without parser) took 158103.18 ms. Allocated memory was 140.0 MB in the beginning and 719.3 MB in the end (delta: 579.3 MB). Free memory was 102.3 MB in the beginning and 371.0 MB in the end (delta: -268.7 MB). Peak memory consumption was 310.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:32,707 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:09:32,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1060.98 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 139.9 MB in the end (delta: -37.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:32,708 INFO L168 Benchmark]: Boogie Preprocessor took 201.66 ms. Allocated memory is still 202.9 MB. Free memory was 139.9 MB in the beginning and 131.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:32,708 INFO L168 Benchmark]: RCFGBuilder took 4597.96 ms. Allocated memory was 202.9 MB in the beginning and 291.5 MB in the end (delta: 88.6 MB). Free memory was 131.1 MB in the beginning and 243.2 MB in the end (delta: -112.0 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:32,711 INFO L168 Benchmark]: TraceAbstraction took 152237.53 ms. Allocated memory was 291.5 MB in the beginning and 719.3 MB in the end (delta: 427.8 MB). Free memory was 240.1 MB in the beginning and 371.0 MB in the end (delta: -130.9 MB). Peak memory consumption was 297.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:32,714 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1060.98 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 139.9 MB in the end (delta: -37.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 201.66 ms. Allocated memory is still 202.9 MB. Free memory was 139.9 MB in the beginning and 131.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4597.96 ms. Allocated memory was 202.9 MB in the beginning and 291.5 MB in the end (delta: 88.6 MB). Free memory was 131.1 MB in the beginning and 243.2 MB in the end (delta: -112.0 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 152237.53 ms. Allocated memory was 291.5 MB in the beginning and 719.3 MB in the end (delta: 427.8 MB). Free memory was 240.1 MB in the beginning and 371.0 MB in the end (delta: -130.9 MB). Peak memory consumption was 297.0 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...