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_spec11_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:41:08,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:41:08,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:41:08,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:41:08,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:41:08,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:41:08,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:41:08,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:41:08,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:41:08,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:41:08,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:41:08,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:41:08,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:41:08,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:41:08,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:41:08,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:41:08,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:41:08,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:41:08,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:41:08,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:41:08,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:41:08,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:41:08,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:41:08,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:41:08,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:41:08,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:41:08,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:41:08,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:41:08,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:41:08,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:41:08,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:41:08,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:41:08,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:41:08,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:41:08,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:41:08,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:41:08,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:41:08,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:41:08,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:41:08,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:41:08,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:41:08,243 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 14:41:08,258 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:41:08,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:41:08,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:41:08,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:41:08,260 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:41:08,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:41:08,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:41:08,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:41:08,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:41:08,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:41:08,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:41:08,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:41:08,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:41:08,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:41:08,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:41:08,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:41:08,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:41:08,265 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 14:41:08,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:41:08,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:41:08,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:41:08,570 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:41:08,570 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:41:08,571 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product18.cil.c [2019-10-07 14:41:08,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1e147f8/5d6d5fdf8391414ba118977e4ce5b36b/FLAGa80698b1e [2019-10-07 14:41:09,278 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:41:09,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product18.cil.c [2019-10-07 14:41:09,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1e147f8/5d6d5fdf8391414ba118977e4ce5b36b/FLAGa80698b1e [2019-10-07 14:41:09,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1e147f8/5d6d5fdf8391414ba118977e4ce5b36b [2019-10-07 14:41:09,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:41:09,500 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:41:09,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:41:09,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:41:09,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:41:09,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:41:09" (1/1) ... [2019-10-07 14:41:09,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3264c97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:09, skipping insertion in model container [2019-10-07 14:41:09,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:41:09" (1/1) ... [2019-10-07 14:41:09,522 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:41:09,601 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:41:10,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:41:10,435 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:41:10,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:41:10,704 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:41:10,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10 WrapperNode [2019-10-07 14:41:10,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:41:10,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:41:10,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:41:10,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:41:10,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:41:10,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:41:10,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:41:10,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:41:10,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (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 14:41:10,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:41:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:41:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:41:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 14:41:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:41:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:41:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:41:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:41:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:41:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:41:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:41:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:41:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:41:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:41:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:41:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:41:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:41:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:41:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:41:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:41:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:41:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:41:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:41:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:41:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:41:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:41:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:41:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:41:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:41:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:41:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:41:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:41:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:41:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:41:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:41:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:41:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:41:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:41:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:41:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:41:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:41:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:41:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:41:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:41:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:41:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:41:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:41:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:41:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:41:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:41:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:41:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:41:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:41:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:41:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:41:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:41:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:41:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:41:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:41:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:41:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:41:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:41:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:41:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:41:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:41:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:41:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:41:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:41:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:41:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:41:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:41:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:41:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:41:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:41:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:41:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-07 14:41:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:41:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:41:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:41:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:41:10,970 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:41:10,970 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:41:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:41:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:41:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:41:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:41:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:41:10,972 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:41:10,972 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:41:10,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:41:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:41:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:41:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:41:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:41:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:41:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:41:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:41:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:41:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:41:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:41:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:41:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:41:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:41:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:41:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:41:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:41:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:41:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:41:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:41:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:41:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:41:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:41:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:41:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:41:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:41:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:41:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:41:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:41:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:41:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:41:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:41:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:41:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:41:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:41:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:41:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:41:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 14:41:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:41:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:41:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:41:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:41:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:41:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:41:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:41:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:41:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:41:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:41:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:41:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:41:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:41:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:41:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:41:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:41:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:41:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:41:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:41:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:41:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:41:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:41:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:41:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:41:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:41:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:41:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:41:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:41:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:41:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:41:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:41:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:41:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:41:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:41:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:41:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:41:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:41:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:41:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:41:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:41:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:41:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:41:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:41:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:41:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:41:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:41:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:41:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:41:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:41:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:41:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:41:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:41:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:41:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:41:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:41:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:41:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:41:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:41:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:41:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:41:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:41:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:41:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:41:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:41:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:41:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:41:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:41:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:41:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:41:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:41:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:41:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:41:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:41:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:41:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:41:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:41:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:41:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:41:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:41:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:41:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:41:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:41:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:41:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:41:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:41:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:41:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:41:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:41:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:41:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:41:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:41:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:41:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-07 14:41:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:41:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:41:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:41:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:41:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:41:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:41:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:41:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:41:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:41:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:41:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:41:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:41:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:41:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:41:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:41:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:41:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:41:15,398 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:41:15,398 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:41:15,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:41:15 BoogieIcfgContainer [2019-10-07 14:41:15,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:41:15,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:41:15,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:41:15,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:41:15,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:41:09" (1/3) ... [2019-10-07 14:41:15,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6f618b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:41:15, skipping insertion in model container [2019-10-07 14:41:15,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (2/3) ... [2019-10-07 14:41:15,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6f618b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:41:15, skipping insertion in model container [2019-10-07 14:41:15,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:41:15" (3/3) ... [2019-10-07 14:41:15,407 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product18.cil.c [2019-10-07 14:41:15,416 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:41:15,426 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:41:15,438 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:41:15,468 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:41:15,468 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:41:15,468 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:41:15,469 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:41:15,469 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:41:15,469 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:41:15,469 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:41:15,469 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:41:15,505 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2019-10-07 14:41:15,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-07 14:41:15,540 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:15,542 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:15,544 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:15,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:15,550 INFO L82 PathProgramCache]: Analyzing trace with hash 53908305, now seen corresponding path program 1 times [2019-10-07 14:41:15,556 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:15,557 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:15,557 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:15,557 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:15,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:16,252 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:16,252 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:16,252 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:41:16,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:41:16,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:41:16,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:41:16,274 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 2 states. [2019-10-07 14:41:16,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:16,341 INFO L93 Difference]: Finished difference Result 470 states and 548 transitions. [2019-10-07 14:41:16,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:41:16,342 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 144 [2019-10-07 14:41:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:16,370 INFO L225 Difference]: With dead ends: 470 [2019-10-07 14:41:16,371 INFO L226 Difference]: Without dead ends: 310 [2019-10-07 14:41:16,378 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 14:41:16,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2019-10-07 14:41:16,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2019-10-07 14:41:16,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2019-10-07 14:41:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 361 transitions. [2019-10-07 14:41:16,453 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 361 transitions. Word has length 144 [2019-10-07 14:41:16,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:16,456 INFO L462 AbstractCegarLoop]: Abstraction has 310 states and 361 transitions. [2019-10-07 14:41:16,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:41:16,456 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 361 transitions. [2019-10-07 14:41:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 14:41:16,461 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:16,461 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:16,462 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:16,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:16,462 INFO L82 PathProgramCache]: Analyzing trace with hash -233144010, now seen corresponding path program 1 times [2019-10-07 14:41:16,462 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:16,462 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:16,463 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:16,463 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:16,720 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:16,720 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:16,720 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:16,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:16,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:16,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:16,723 INFO L87 Difference]: Start difference. First operand 310 states and 361 transitions. Second operand 3 states. [2019-10-07 14:41:16,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:16,761 INFO L93 Difference]: Finished difference Result 455 states and 517 transitions. [2019-10-07 14:41:16,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:16,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-10-07 14:41:16,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:16,766 INFO L225 Difference]: With dead ends: 455 [2019-10-07 14:41:16,767 INFO L226 Difference]: Without dead ends: 312 [2019-10-07 14:41:16,769 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 14:41:16,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2019-10-07 14:41:16,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2019-10-07 14:41:16,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2019-10-07 14:41:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 363 transitions. [2019-10-07 14:41:16,815 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 363 transitions. Word has length 145 [2019-10-07 14:41:16,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:16,815 INFO L462 AbstractCegarLoop]: Abstraction has 312 states and 363 transitions. [2019-10-07 14:41:16,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:16,816 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 363 transitions. [2019-10-07 14:41:16,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 14:41:16,821 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:16,821 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:16,822 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:16,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:16,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1568836333, now seen corresponding path program 1 times [2019-10-07 14:41:16,822 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:16,822 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:16,823 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:16,823 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:17,009 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:17,009 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,009 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:17,010 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:17,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:17,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:17,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:17,011 INFO L87 Difference]: Start difference. First operand 312 states and 363 transitions. Second operand 3 states. [2019-10-07 14:41:17,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:17,043 INFO L93 Difference]: Finished difference Result 606 states and 733 transitions. [2019-10-07 14:41:17,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:17,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-07 14:41:17,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:17,047 INFO L225 Difference]: With dead ends: 606 [2019-10-07 14:41:17,047 INFO L226 Difference]: Without dead ends: 352 [2019-10-07 14:41:17,050 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 14:41:17,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2019-10-07 14:41:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 351. [2019-10-07 14:41:17,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-10-07 14:41:17,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 431 transitions. [2019-10-07 14:41:17,075 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 431 transitions. Word has length 154 [2019-10-07 14:41:17,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:17,076 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 431 transitions. [2019-10-07 14:41:17,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:17,076 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 431 transitions. [2019-10-07 14:41:17,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 14:41:17,079 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:17,080 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:17,080 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:17,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:17,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1524694910, now seen corresponding path program 1 times [2019-10-07 14:41:17,081 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:17,081 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,081 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,081 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:17,325 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,326 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:17,327 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:17,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:17,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:17,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:17,330 INFO L87 Difference]: Start difference. First operand 351 states and 431 transitions. Second operand 3 states. [2019-10-07 14:41:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:17,361 INFO L93 Difference]: Finished difference Result 720 states and 932 transitions. [2019-10-07 14:41:17,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:17,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-07 14:41:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:17,366 INFO L225 Difference]: With dead ends: 720 [2019-10-07 14:41:17,366 INFO L226 Difference]: Without dead ends: 427 [2019-10-07 14:41:17,367 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 14:41:17,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-10-07 14:41:17,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2019-10-07 14:41:17,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-10-07 14:41:17,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 561 transitions. [2019-10-07 14:41:17,394 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 561 transitions. Word has length 155 [2019-10-07 14:41:17,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:17,394 INFO L462 AbstractCegarLoop]: Abstraction has 426 states and 561 transitions. [2019-10-07 14:41:17,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:17,395 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 561 transitions. [2019-10-07 14:41:17,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 14:41:17,398 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:17,398 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:17,399 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:17,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:17,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1076299565, now seen corresponding path program 1 times [2019-10-07 14:41:17,399 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:17,400 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,400 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,400 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:17,592 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,592 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:17,592 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:17,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:17,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:17,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:17,594 INFO L87 Difference]: Start difference. First operand 426 states and 561 transitions. Second operand 3 states. [2019-10-07 14:41:17,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:17,636 INFO L93 Difference]: Finished difference Result 939 states and 1312 transitions. [2019-10-07 14:41:17,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:17,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-07 14:41:17,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:17,643 INFO L225 Difference]: With dead ends: 939 [2019-10-07 14:41:17,643 INFO L226 Difference]: Without dead ends: 571 [2019-10-07 14:41:17,646 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 14:41:17,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-10-07 14:41:17,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 570. [2019-10-07 14:41:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2019-10-07 14:41:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 809 transitions. [2019-10-07 14:41:17,683 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 809 transitions. Word has length 156 [2019-10-07 14:41:17,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:17,684 INFO L462 AbstractCegarLoop]: Abstraction has 570 states and 809 transitions. [2019-10-07 14:41:17,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 809 transitions. [2019-10-07 14:41:17,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-07 14:41:17,691 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:17,692 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:17,692 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:17,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:17,693 INFO L82 PathProgramCache]: Analyzing trace with hash -89329421, now seen corresponding path program 1 times [2019-10-07 14:41:17,693 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:17,693 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,694 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,694 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:17,996 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 14:41:17,997 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,997 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:41:17,998 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 14:41:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:18,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:41:18,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:41:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:18,942 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:41:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:19,201 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:41:19,238 INFO L162 IcfgInterpreter]: Started Sifa with 145 locations of interest [2019-10-07 14:41:19,238 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:41:19,253 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:41:19,261 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:41:19,262 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:41:59,906 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 653 [2019-10-07 14:42:03,476 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 266 DAG size of output: 217 [2019-10-07 14:42:03,850 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 683 [2019-10-07 14:42:04,199 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 683 [2019-10-07 14:42:04,705 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 683 [2019-10-07 14:42:04,970 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:05,686 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:42:06,325 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:42:06,887 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:42:07,063 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:07,605 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:42:08,769 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 975 DAG size of output: 973 [2019-10-07 14:42:09,348 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:42:09,480 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:10,037 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:42:10,596 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:42:11,146 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:42:11,279 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:11,852 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:42:11,879 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 541 for LOIs [2019-10-07 14:42:12,227 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 622 [2019-10-07 14:42:12,445 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:12,894 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 912 [2019-10-07 14:42:12,895 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1009 for LOIs [2019-10-07 14:42:13,438 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:42:13,998 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:42:14,203 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:42:14,988 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:42:15,573 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:16,131 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:16,356 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:17,156 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:17,785 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:18,354 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:18,561 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:19,344 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:20,362 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 1141 DAG size of output: 1015 [2019-10-07 14:42:20,908 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:21,129 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:21,908 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:22,480 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:23,025 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:23,222 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:24,017 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:24,562 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:25,123 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:25,314 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:26,120 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:26,667 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:27,219 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:27,427 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:28,206 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:28,756 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:29,311 WARN L191 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:29,541 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:30,336 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:30,876 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:31,421 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:31,622 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:32,442 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:32,986 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:33,534 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:33,735 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:34,529 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:35,075 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:35,618 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:35,809 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:36,593 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:37,136 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:37,711 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:37,909 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:38,715 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:39,263 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:39,808 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 14:42:40,003 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:40,795 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:41,678 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:42,491 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:42,885 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:43,705 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:45,186 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1139 [2019-10-07 14:42:45,971 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:46,186 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:46,971 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:47,793 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:48,592 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:48,791 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:42:49,578 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:42:50,507 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:42:51,296 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:42:51,506 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:42:52,302 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:42:53,771 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1145 DAG size of output: 1141 [2019-10-07 14:42:54,565 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1141 [2019-10-07 14:42:54,825 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:42:55,621 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:42:57,086 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1145 DAG size of output: 1141 [2019-10-07 14:42:57,911 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1141 [2019-10-07 14:42:58,108 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:42:58,919 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:42:59,736 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:00,567 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:00,781 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:43:01,613 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:02,433 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:43:03,256 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:43:03,463 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:43:04,275 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:43:06,595 WARN L191 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1139 [2019-10-07 14:43:07,380 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:07,581 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:08,386 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:09,852 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1139 [2019-10-07 14:43:10,662 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:10,866 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:11,666 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:12,463 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:13,266 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:13,462 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:14,262 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:15,744 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1139 [2019-10-07 14:43:16,547 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:16,747 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:17,550 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:20,109 WARN L191 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1139 [2019-10-07 14:43:20,910 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:21,119 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:21,898 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:22,704 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:23,504 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:23,698 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:24,488 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:43:26,980 WARN L191 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 1145 DAG size of output: 1143 [2019-10-07 14:43:27,774 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:43:27,976 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:43:28,775 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:43:30,227 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1145 DAG size of output: 1143 [2019-10-07 14:43:31,026 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:43:31,232 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:43:32,040 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:43:33,482 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1145 DAG size of output: 1143 [2019-10-07 14:43:34,286 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:43:34,478 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:43:35,261 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 14:43:36,680 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1148 DAG size of output: 1146 [2019-10-07 14:43:37,469 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:37,676 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:43:38,463 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:39,902 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1150 DAG size of output: 1148 [2019-10-07 14:43:40,708 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:43:40,914 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 14:43:41,707 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:43:41,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:43:41,984 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 14:43:41,991 INFO L168 Benchmark]: Toolchain (without parser) took 152490.50 ms. Allocated memory was 136.8 MB in the beginning and 703.6 MB in the end (delta: 566.8 MB). Free memory was 98.7 MB in the beginning and 242.2 MB in the end (delta: -143.5 MB). Peak memory consumption was 423.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:41,992 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 14:43:41,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1202.28 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 98.5 MB in the beginning and 138.6 MB in the end (delta: -40.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:41,997 INFO L168 Benchmark]: Boogie Preprocessor took 167.96 ms. Allocated memory is still 201.9 MB. Free memory was 138.6 MB in the beginning and 130.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:41,997 INFO L168 Benchmark]: RCFGBuilder took 4525.59 ms. Allocated memory was 201.9 MB in the beginning and 308.3 MB in the end (delta: 106.4 MB). Free memory was 130.0 MB in the beginning and 132.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:41,999 INFO L168 Benchmark]: TraceAbstraction took 146587.51 ms. Allocated memory was 308.3 MB in the beginning and 703.6 MB in the end (delta: 395.3 MB). Free memory was 132.1 MB in the beginning and 242.2 MB in the end (delta: -110.1 MB). Peak memory consumption was 285.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:42,005 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 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1202.28 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 98.5 MB in the beginning and 138.6 MB in the end (delta: -40.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 167.96 ms. Allocated memory is still 201.9 MB. Free memory was 138.6 MB in the beginning and 130.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4525.59 ms. Allocated memory was 201.9 MB in the beginning and 308.3 MB in the end (delta: 106.4 MB). Free memory was 130.0 MB in the beginning and 132.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 146587.51 ms. Allocated memory was 308.3 MB in the beginning and 703.6 MB in the end (delta: 395.3 MB). Free memory was 132.1 MB in the beginning and 242.2 MB in the end (delta: -110.1 MB). Peak memory consumption was 285.2 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...