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_spec27_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:50:07,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:50:07,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:50:07,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:50:07,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:50:07,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:50:07,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:50:07,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:50:07,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:50:07,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:50:07,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:50:07,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:50:07,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:50:07,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:50:07,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:50:07,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:50:07,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:50:07,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:50:07,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:50:07,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:50:07,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:50:07,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:50:07,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:50:07,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:50:07,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:50:07,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:50:07,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:50:07,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:50:07,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:50:07,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:50:07,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:50:07,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:50:07,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:50:07,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:50:07,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:50:07,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:50:07,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:50:07,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:50:07,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:50:07,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:50:07,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:50:07,276 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 14:50:07,290 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:50:07,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:50:07,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:50:07,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:50:07,292 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:50:07,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:50:07,292 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:50:07,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:50:07,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:50:07,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:50:07,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:50:07,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:50:07,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:50:07,294 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:50:07,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:50:07,294 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:50:07,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:50:07,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:50:07,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:50:07,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:50:07,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:50:07,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:50:07,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:50:07,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:50:07,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:50:07,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:50:07,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:50:07,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:50:07,297 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 14:50:07,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:50:07,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:50:07,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:50:07,601 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:50:07,602 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:50:07,602 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product34.cil.c [2019-10-07 14:50:07,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59235b02/73b198d9067343ecb7cb6e97b4f41b33/FLAG174905aaf [2019-10-07 14:50:08,382 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:50:08,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product34.cil.c [2019-10-07 14:50:08,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59235b02/73b198d9067343ecb7cb6e97b4f41b33/FLAG174905aaf [2019-10-07 14:50:08,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59235b02/73b198d9067343ecb7cb6e97b4f41b33 [2019-10-07 14:50:08,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:50:08,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:50:08,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:50:08,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:50:08,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:50:08,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:50:08" (1/1) ... [2019-10-07 14:50:08,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3dd1f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:08, skipping insertion in model container [2019-10-07 14:50:08,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:50:08" (1/1) ... [2019-10-07 14:50:08,530 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:50:08,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:50:09,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:50:09,411 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:50:09,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:50:09,647 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:50:09,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09 WrapperNode [2019-10-07 14:50:09,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:50:09,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:50:09,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:50:09,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:50:09,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09" (1/1) ... [2019-10-07 14:50:09,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09" (1/1) ... [2019-10-07 14:50:09,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09" (1/1) ... [2019-10-07 14:50:09,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09" (1/1) ... [2019-10-07 14:50:09,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09" (1/1) ... [2019-10-07 14:50:09,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09" (1/1) ... [2019-10-07 14:50:09,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09" (1/1) ... [2019-10-07 14:50:09,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:50:09,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:50:09,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:50:09,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:50:09,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09" (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 14:50:10,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:50:10,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:50:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:50:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:50:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:50:10,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:50:10,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:50:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:50:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:50:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:50:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:50:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:50:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:50:10,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:50:10,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:50:10,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:50:10,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:50:10,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:50:10,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:50:10,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:50:10,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:50:10,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:50:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:50:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:50:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:50:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:50:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:50:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:50:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:50:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:50:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:50:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:50:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:50:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:50:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:50:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:50:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:50:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:50:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:50:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:50:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:50:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:50:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:50:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:50:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:50:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:50:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:50:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:50:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:50:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:50:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:50:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:50:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:50:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:50:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:50:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:50:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:50:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:50:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:50:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:50:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:50:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:50:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:50:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:50:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:50:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:50:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:50:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:50:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:50:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 14:50:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:50:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:50:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:50:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:50:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:50:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:50:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:50:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:50:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:50:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:50:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:50:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:50:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:50:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:50:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:50:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:50:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:50:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:50:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:50:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:50:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:50:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:50:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:50:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:50:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:50:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:50:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:50:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:50:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:50:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:50:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:50:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:50:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:50:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:50:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:50:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:50:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:50:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:50:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:50:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:50:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:50:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:50:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:50:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:50:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:50:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:50:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:50:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:50:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:50:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:50:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:50:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:50:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:50:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:50:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:50:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:50:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:50:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:50:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:50:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:50:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:50:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:50:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:50:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:50:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:50:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:50:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:50:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:50:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:50:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:50:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:50:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:50:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:50:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:50:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:50:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:50:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:50:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:50:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:50:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:50:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:50:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:50:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:50:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:50:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:50:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:50:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:50:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:50:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:50:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:50:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:50:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:50:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:50:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:50:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:50:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:50:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:50:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:50:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:50:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:50:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:50:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:50:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:50:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:50:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:50:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:50:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:50:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:50:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:50:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:50:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:50:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:50:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:50:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:50:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:50:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:50:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:50:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:50:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:50:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:50:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:50:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:50:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:50:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:50:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:50:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:50:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:50:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:50:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:50:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:50:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:50:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:50:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:50:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:50:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:50:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:50:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:50:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:50:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:50:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:50:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:50:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:50:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:50:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:50:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 14:50:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:50:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:50:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:50:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:50:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:50:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:50:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:50:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:50:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:50:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:50:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:50:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:50:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:50:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:50:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:50:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:50:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:50:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:50:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:50:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:50:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:50:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:50:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:50:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:50:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:50:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:50:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:50:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:50:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:50:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:50:14,940 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:50:14,940 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:50:14,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:14 BoogieIcfgContainer [2019-10-07 14:50:14,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:50:14,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:50:14,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:50:14,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:50:14,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:50:08" (1/3) ... [2019-10-07 14:50:14,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2441b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:14, skipping insertion in model container [2019-10-07 14:50:14,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:09" (2/3) ... [2019-10-07 14:50:14,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2441b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:14, skipping insertion in model container [2019-10-07 14:50:14,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:14" (3/3) ... [2019-10-07 14:50:14,950 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product34.cil.c [2019-10-07 14:50:14,961 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:50:14,971 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:50:14,983 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:50:15,018 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:50:15,018 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:50:15,018 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:50:15,019 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:50:15,019 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:50:15,019 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:50:15,019 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:50:15,019 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:50:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states. [2019-10-07 14:50:15,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:50:15,074 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:15,076 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:15,078 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:15,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:15,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1996072285, now seen corresponding path program 1 times [2019-10-07 14:50:15,093 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:15,093 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:15,093 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:15,093 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:15,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:15,853 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:15,854 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:15,854 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:50:15,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:50:15,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:50:15,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:50:15,877 INFO L87 Difference]: Start difference. First operand 457 states. Second operand 2 states. [2019-10-07 14:50:15,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:15,984 INFO L93 Difference]: Finished difference Result 696 states and 837 transitions. [2019-10-07 14:50:15,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:50:15,987 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 174 [2019-10-07 14:50:15,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:16,022 INFO L225 Difference]: With dead ends: 696 [2019-10-07 14:50:16,022 INFO L226 Difference]: Without dead ends: 430 [2019-10-07 14:50:16,037 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 14:50:16,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-07 14:50:16,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2019-10-07 14:50:16,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-07 14:50:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 510 transitions. [2019-10-07 14:50:16,150 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 510 transitions. Word has length 174 [2019-10-07 14:50:16,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:16,152 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 510 transitions. [2019-10-07 14:50:16,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:50:16,152 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 510 transitions. [2019-10-07 14:50:16,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-07 14:50:16,161 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:16,162 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:16,162 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:16,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:16,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1369392525, now seen corresponding path program 1 times [2019-10-07 14:50:16,163 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:16,163 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:16,163 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:16,163 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:16,373 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:16,374 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:16,374 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:16,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:16,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:16,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:16,377 INFO L87 Difference]: Start difference. First operand 430 states and 510 transitions. Second operand 3 states. [2019-10-07 14:50:16,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:16,455 INFO L93 Difference]: Finished difference Result 681 states and 800 transitions. [2019-10-07 14:50:16,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:16,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-07 14:50:16,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:16,466 INFO L225 Difference]: With dead ends: 681 [2019-10-07 14:50:16,467 INFO L226 Difference]: Without dead ends: 432 [2019-10-07 14:50:16,468 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 14:50:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2019-10-07 14:50:16,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2019-10-07 14:50:16,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2019-10-07 14:50:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 512 transitions. [2019-10-07 14:50:16,518 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 512 transitions. Word has length 175 [2019-10-07 14:50:16,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:16,519 INFO L462 AbstractCegarLoop]: Abstraction has 432 states and 512 transitions. [2019-10-07 14:50:16,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:16,519 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 512 transitions. [2019-10-07 14:50:16,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-07 14:50:16,522 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:16,523 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:50:16,523 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:16,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:16,524 INFO L82 PathProgramCache]: Analyzing trace with hash 2059788603, now seen corresponding path program 1 times [2019-10-07 14:50:16,524 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:16,524 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:16,524 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:16,524 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:16,839 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:16,839 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:16,840 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:16,840 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:16,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:16,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:16,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:16,841 INFO L87 Difference]: Start difference. First operand 432 states and 512 transitions. Second operand 3 states. [2019-10-07 14:50:16,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:16,879 INFO L93 Difference]: Finished difference Result 848 states and 1034 transitions. [2019-10-07 14:50:16,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:16,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-07 14:50:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:16,884 INFO L225 Difference]: With dead ends: 848 [2019-10-07 14:50:16,885 INFO L226 Difference]: Without dead ends: 474 [2019-10-07 14:50:16,887 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 14:50:16,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-07 14:50:16,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 473. [2019-10-07 14:50:16,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-10-07 14:50:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 583 transitions. [2019-10-07 14:50:16,918 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 583 transitions. Word has length 180 [2019-10-07 14:50:16,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:16,919 INFO L462 AbstractCegarLoop]: Abstraction has 473 states and 583 transitions. [2019-10-07 14:50:16,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:16,919 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 583 transitions. [2019-10-07 14:50:16,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:50:16,923 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:16,923 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:50:16,924 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:16,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:16,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1610033062, now seen corresponding path program 1 times [2019-10-07 14:50:16,924 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:16,925 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:16,925 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:16,925 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:16,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:17,940 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:17,940 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:17,941 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:50:17,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:50:17,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:50:17,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:50:17,943 INFO L87 Difference]: Start difference. First operand 473 states and 583 transitions. Second operand 28 states. [2019-10-07 14:50:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:27,617 INFO L93 Difference]: Finished difference Result 1054 states and 1309 transitions. [2019-10-07 14:50:27,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 14:50:27,617 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 181 [2019-10-07 14:50:27,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:27,628 INFO L225 Difference]: With dead ends: 1054 [2019-10-07 14:50:27,628 INFO L226 Difference]: Without dead ends: 813 [2019-10-07 14:50:27,631 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2019-10-07 14:50:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-10-07 14:50:27,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 784. [2019-10-07 14:50:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-07 14:50:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 973 transitions. [2019-10-07 14:50:27,702 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 973 transitions. Word has length 181 [2019-10-07 14:50:27,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:27,706 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 973 transitions. [2019-10-07 14:50:27,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:50:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 973 transitions. [2019-10-07 14:50:27,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-07 14:50:27,711 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:27,711 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1] [2019-10-07 14:50:27,712 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:27,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:27,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1446293020, now seen corresponding path program 1 times [2019-10-07 14:50:27,712 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:27,712 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:27,713 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:27,713 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:27,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:27,979 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:27,980 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:27,980 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:27,980 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:50:27,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:50:27,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:50:27,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:27,983 INFO L87 Difference]: Start difference. First operand 784 states and 973 transitions. Second operand 10 states. [2019-10-07 14:50:28,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:28,084 INFO L93 Difference]: Finished difference Result 1336 states and 1671 transitions. [2019-10-07 14:50:28,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:50:28,084 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2019-10-07 14:50:28,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:28,094 INFO L225 Difference]: With dead ends: 1336 [2019-10-07 14:50:28,094 INFO L226 Difference]: Without dead ends: 804 [2019-10-07 14:50:28,098 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:28,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-10-07 14:50:28,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 788. [2019-10-07 14:50:28,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-07 14:50:28,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 977 transitions. [2019-10-07 14:50:28,158 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 977 transitions. Word has length 185 [2019-10-07 14:50:28,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:28,163 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 977 transitions. [2019-10-07 14:50:28,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:50:28,163 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 977 transitions. [2019-10-07 14:50:28,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-07 14:50:28,169 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:28,170 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1] [2019-10-07 14:50:28,170 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:28,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:28,171 INFO L82 PathProgramCache]: Analyzing trace with hash 324242584, now seen corresponding path program 1 times [2019-10-07 14:50:28,171 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:28,171 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:28,171 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:28,171 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:29,163 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:29,163 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:29,163 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2019-10-07 14:50:29,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-07 14:50:29,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-07 14:50:29,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 14:50:29,165 INFO L87 Difference]: Start difference. First operand 788 states and 977 transitions. Second operand 33 states. [2019-10-07 14:50:45,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:45,103 INFO L93 Difference]: Finished difference Result 2014 states and 2526 transitions. [2019-10-07 14:50:45,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-07 14:50:45,103 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 187 [2019-10-07 14:50:45,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:45,114 INFO L225 Difference]: With dead ends: 2014 [2019-10-07 14:50:45,115 INFO L226 Difference]: Without dead ends: 1474 [2019-10-07 14:50:45,120 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=315, Invalid=3975, Unknown=0, NotChecked=0, Total=4290 [2019-10-07 14:50:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2019-10-07 14:50:45,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1454. [2019-10-07 14:50:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1454 states. [2019-10-07 14:50:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1828 transitions. [2019-10-07 14:50:45,214 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1828 transitions. Word has length 187 [2019-10-07 14:50:45,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:45,215 INFO L462 AbstractCegarLoop]: Abstraction has 1454 states and 1828 transitions. [2019-10-07 14:50:45,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-07 14:50:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1828 transitions. [2019-10-07 14:50:45,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-07 14:50:45,219 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:45,219 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 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 14:50:45,220 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:45,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:45,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1264864662, now seen corresponding path program 1 times [2019-10-07 14:50:45,220 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:45,220 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:45,221 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:45,221 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:45,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:50:45,927 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:45,927 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:45,927 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-07 14:50:45,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-07 14:50:45,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-07 14:50:45,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:50:45,929 INFO L87 Difference]: Start difference. First operand 1454 states and 1828 transitions. Second operand 27 states. [2019-10-07 14:50:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:59,079 INFO L93 Difference]: Finished difference Result 3753 states and 4693 transitions. [2019-10-07 14:50:59,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:50:59,080 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 211 [2019-10-07 14:50:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:59,097 INFO L225 Difference]: With dead ends: 3753 [2019-10-07 14:50:59,097 INFO L226 Difference]: Without dead ends: 2529 [2019-10-07 14:50:59,104 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=273, Invalid=2807, Unknown=0, NotChecked=0, Total=3080 [2019-10-07 14:50:59,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2529 states. [2019-10-07 14:50:59,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2529 to 2448. [2019-10-07 14:50:59,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2448 states. [2019-10-07 14:50:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3026 transitions. [2019-10-07 14:50:59,247 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3026 transitions. Word has length 211 [2019-10-07 14:50:59,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:59,248 INFO L462 AbstractCegarLoop]: Abstraction has 2448 states and 3026 transitions. [2019-10-07 14:50:59,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-07 14:50:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3026 transitions. [2019-10-07 14:50:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-07 14:50:59,255 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:59,256 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 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 14:50:59,256 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:59,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:59,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1709286878, now seen corresponding path program 1 times [2019-10-07 14:50:59,257 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:59,257 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:59,257 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:59,257 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:51:00,035 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-10-07 14:51:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:51:00,810 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:51:00,810 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:51:00,810 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 14:51:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:51:01,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 3218 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:51:01,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:51:01,588 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:51:01,588 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:51:01,943 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:51:01,944 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:51:01,997 INFO L162 IcfgInterpreter]: Started Sifa with 196 locations of interest [2019-10-07 14:51:01,997 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:51:02,005 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:51:02,012 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:51:02,012 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:52:14,076 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 697 [2019-10-07 14:52:18,674 WARN L191 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 349 DAG size of output: 283 [2019-10-07 14:52:19,143 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 749 [2019-10-07 14:52:19,586 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 749 [2019-10-07 14:52:19,838 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 749 [2019-10-07 14:52:19,997 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:20,670 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1047 [2019-10-07 14:52:21,334 WARN L191 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 1047 [2019-10-07 14:52:22,073 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1047 [2019-10-07 14:52:22,237 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:22,893 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1047 [2019-10-07 14:52:24,159 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1049 DAG size of output: 1047 [2019-10-07 14:52:24,827 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1047 [2019-10-07 14:52:24,972 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:25,615 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1047 [2019-10-07 14:52:26,309 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1047 [2019-10-07 14:52:26,946 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1047 [2019-10-07 14:52:27,066 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:27,728 WARN L191 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 1047 [2019-10-07 14:52:27,757 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 565 for LOIs [2019-10-07 14:52:28,176 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 14:52:28,284 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 14:52:28,410 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:28,918 WARN L191 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:52:28,919 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1109 for LOIs [2019-10-07 14:52:29,556 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:30,214 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:30,546 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:31,585 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:32,236 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:32,854 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:33,137 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:34,161 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:34,906 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:35,512 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:35,779 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:36,824 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:37,843 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 1309 DAG size of output: 1109 [2019-10-07 14:52:38,490 WARN L191 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:38,750 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:39,770 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:40,398 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:41,009 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:41,325 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:42,388 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:42,999 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:43,623 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:43,875 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:44,861 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:45,494 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:46,114 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:46,355 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:47,391 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:47,993 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:48,613 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:48,855 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:49,873 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:50,496 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:51,120 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:51,363 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:52,389 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:52,999 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:53,612 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:53,855 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:54,871 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:55,497 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:56,099 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:56,350 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:57,351 WARN L191 SmtUtils]: Spent 999.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:52:57,954 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:58,560 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:52:58,801 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:59,817 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:00,426 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:53:01,030 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1109 [2019-10-07 14:53:01,272 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:02,305 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:03,376 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:04,372 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:04,633 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:05,660 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:07,600 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:53:08,621 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:08,880 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:09,907 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:10,922 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:11,960 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:12,206 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:13,241 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:14,276 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:15,310 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:15,571 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:16,573 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:18,669 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1311 [2019-10-07 14:53:19,706 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:19,972 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:20,993 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:22,870 WARN L191 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1311 [2019-10-07 14:53:23,903 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:24,157 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:25,160 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:26,166 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:53:27,190 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:53:27,438 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:28,480 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:29,516 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:30,526 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:30,784 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:31,784 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:53:33,890 WARN L191 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:53:34,886 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:35,147 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:36,159 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:38,338 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:53:39,348 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:39,617 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:40,605 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:41,623 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:42,634 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:42,889 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:43,902 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:45,831 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:53:46,819 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:47,079 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:48,116 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:49,939 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:53:50,958 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:51,216 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:52,225 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:53,253 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:54,292 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:54,544 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:55,561 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:53:57,516 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1309 [2019-10-07 14:53:58,547 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:53:58,810 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:59,829 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:54:02,191 WARN L191 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1309 [2019-10-07 14:54:03,241 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:54:03,506 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:54:04,536 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:54:05,545 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:54:06,599 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:54:06,855 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:54:07,900 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:54:09,635 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1309 [2019-10-07 14:54:10,673 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:54:10,959 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:54:12,011 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:54:13,802 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1315 DAG size of output: 1311 [2019-10-07 14:54:14,816 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:54:15,079 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:54:16,097 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:54:16,367 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:54:16,369 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 14:54:16,375 INFO L168 Benchmark]: Toolchain (without parser) took 247859.66 ms. Allocated memory was 144.2 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 97.9 MB in the beginning and 944.6 MB in the end (delta: -846.7 MB). Peak memory consumption was 303.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:16,376 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory is still 118.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 14:54:16,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1131.55 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 97.9 MB in the beginning and 129.0 MB in the end (delta: -31.1 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:16,377 INFO L168 Benchmark]: Boogie Preprocessor took 267.13 ms. Allocated memory is still 202.4 MB. Free memory was 129.0 MB in the beginning and 119.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:16,378 INFO L168 Benchmark]: RCFGBuilder took 5025.87 ms. Allocated memory was 202.4 MB in the beginning and 300.9 MB in the end (delta: 98.6 MB). Free memory was 119.7 MB in the beginning and 91.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 126.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:16,379 INFO L168 Benchmark]: TraceAbstraction took 241430.50 ms. Allocated memory was 300.9 MB in the beginning and 1.3 GB in the end (delta: 993.5 MB). Free memory was 91.7 MB in the beginning and 944.6 MB in the end (delta: -852.9 MB). Peak memory consumption was 140.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:16,382 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory is still 118.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1131.55 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 97.9 MB in the beginning and 129.0 MB in the end (delta: -31.1 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 267.13 ms. Allocated memory is still 202.4 MB. Free memory was 129.0 MB in the beginning and 119.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5025.87 ms. Allocated memory was 202.4 MB in the beginning and 300.9 MB in the end (delta: 98.6 MB). Free memory was 119.7 MB in the beginning and 91.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 126.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241430.50 ms. Allocated memory was 300.9 MB in the beginning and 1.3 GB in the end (delta: 993.5 MB). Free memory was 91.7 MB in the beginning and 944.6 MB in the end (delta: -852.9 MB). Peak memory consumption was 140.6 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...