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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:41:14,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:41:14,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:41:14,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:41:14,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:41:14,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:41:14,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:41:14,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:41:14,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:41:14,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:41:14,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:41:14,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:41:14,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:41:14,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:41:14,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:41:14,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:41:14,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:41:14,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:41:14,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:41:14,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:41:14,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:41:14,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:41:14,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:41:14,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:41:14,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:41:14,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:41:14,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:41:14,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:41:14,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:41:14,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:41:14,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:41:14,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:41:14,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:41:14,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:41:14,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:41:14,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:41:14,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:41:14,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:41:14,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:41:14,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:41:14,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:41:14,401 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 14:41:14,415 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:41:14,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:41:14,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:41:14,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:41:14,417 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:41:14,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:41:14,418 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:41:14,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:41:14,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:41:14,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:41:14,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:41:14,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:41:14,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:41:14,419 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:41:14,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:41:14,420 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:41:14,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:41:14,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:41:14,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:41:14,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:41:14,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:41:14,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:41:14,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:41:14,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:41:14,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:41:14,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:41:14,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:41:14,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:41:14,422 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 14:41:14,696 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:41:14,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:41:14,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:41:14,721 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:41:14,721 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:41:14,722 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product20.cil.c [2019-10-07 14:41:14,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35b05e39d/61fdded69ebf4cd49c60322d32c5a988/FLAGdac35bf8c [2019-10-07 14:41:15,421 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:41:15,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product20.cil.c [2019-10-07 14:41:15,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35b05e39d/61fdded69ebf4cd49c60322d32c5a988/FLAGdac35bf8c [2019-10-07 14:41:15,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35b05e39d/61fdded69ebf4cd49c60322d32c5a988 [2019-10-07 14:41:15,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:41:15,675 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:41:15,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:41:15,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:41:15,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:41:15,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:41:15" (1/1) ... [2019-10-07 14:41:15,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6228bf37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:15, skipping insertion in model container [2019-10-07 14:41:15,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:41:15" (1/1) ... [2019-10-07 14:41:15,690 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:41:15,771 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:41:16,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:41:16,701 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:41:16,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:41:16,889 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:41:16,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16 WrapperNode [2019-10-07 14:41:16,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:41:16,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:41:16,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:41:16,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:41:16,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16" (1/1) ... [2019-10-07 14:41:16,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16" (1/1) ... [2019-10-07 14:41:16,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16" (1/1) ... [2019-10-07 14:41:16,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16" (1/1) ... [2019-10-07 14:41:17,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16" (1/1) ... [2019-10-07 14:41:17,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16" (1/1) ... [2019-10-07 14:41:17,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16" (1/1) ... [2019-10-07 14:41:17,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:41:17,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:41:17,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:41:17,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:41:17,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16" (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 14:41:17,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:41:17,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:41:17,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:41:17,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:41:17,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:41:17,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:41:17,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:41:17,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:41:17,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:41:17,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:41:17,169 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:41:17,169 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:41:17,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:41:17,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:41:17,170 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:41:17,170 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:41:17,170 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:41:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:41:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:41:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:41:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:41:17,172 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:41:17,172 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:41:17,172 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:41:17,173 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:41:17,173 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:41:17,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:41:17,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:41:17,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:41:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:41:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:41:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:41:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:41:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:41:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:41:17,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:41:17,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:41:17,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:41:17,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:41:17,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:41:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:41:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:41:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:41:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:41:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:41:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:41:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:41:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:41:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:41:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:41:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:41:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:41:17,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:41:17,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:41:17,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:41:17,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:41:17,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:41:17,178 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:41:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:41:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:41:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:41:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:41:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:41:17,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:41:17,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:41:17,180 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:41:17,180 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:41:17,180 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:41:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:41:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:41:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:41:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:41:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-07 14:41:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:41:17,182 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:41:17,182 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:41:17,182 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:41:17,182 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:41:17,182 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:41:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:41:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:41:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:41:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:41:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:41:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:41:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:41:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:41:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:41:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:41:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:41:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:41:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:41:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:41:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:41:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:41:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:41:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:41:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:41:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:41:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:41:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:41:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:41:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:41:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:41:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:41:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:41:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:41:17,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:41:17,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:41:17,188 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:41:17,188 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:41:17,188 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:41:17,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:41:17,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:41:17,189 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:41:17,189 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:41:17,189 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:41:17,189 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:41:17,190 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:41:17,190 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:41:17,190 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:41:17,190 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:41:17,190 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:41:17,190 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:41:17,190 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:41:17,191 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:41:17,191 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:41:17,191 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:41:17,191 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:41:17,191 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:41:17,191 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:41:17,191 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:41:17,192 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:41:17,192 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:41:17,192 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:41:17,192 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:41:17,192 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:41:17,192 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:41:17,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:41:17,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:41:17,193 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:41:17,193 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:41:17,193 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:41:17,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:41:17,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:41:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:41:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:41:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:41:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:41:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:41:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:41:17,195 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:41:17,195 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:41:17,195 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:41:17,195 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:41:17,195 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:41:17,195 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:41:17,195 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:41:17,196 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:41:17,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:41:17,196 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:41:17,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:41:17,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:41:17,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:41:17,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:41:17,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:41:17,197 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:41:17,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:41:17,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:41:17,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:41:17,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:41:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:41:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:41:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:41:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:41:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:41:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:41:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:41:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:41:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:41:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:41:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:41:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:41:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:41:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:41:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:41:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:41:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:41:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:41:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:41:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:41:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:41:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:41:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:41:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:41:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:41:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:41:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:41:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:41:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:41:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:41:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:41:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:41:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:41:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:41:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:41:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:41:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:41:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:41:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:41:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:41:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:41:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:41:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:41:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:41:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:41:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:41:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:41:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-07 14:41:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:41:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:41:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:41:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:41:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:41:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:41:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:41:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:41:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:41:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:41:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:41:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:41:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:41:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:41:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:41:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:41:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:41:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:41:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:41:17,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:41:21,699 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:41:21,700 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:41:21,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:41:21 BoogieIcfgContainer [2019-10-07 14:41:21,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:41:21,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:41:21,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:41:21,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:41:21,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:41:15" (1/3) ... [2019-10-07 14:41:21,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba751ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:41:21, skipping insertion in model container [2019-10-07 14:41:21,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:16" (2/3) ... [2019-10-07 14:41:21,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba751ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:41:21, skipping insertion in model container [2019-10-07 14:41:21,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:41:21" (3/3) ... [2019-10-07 14:41:21,710 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product20.cil.c [2019-10-07 14:41:21,721 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:41:21,734 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:41:21,746 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:41:21,788 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:41:21,788 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:41:21,789 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:41:21,789 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:41:21,789 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:41:21,789 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:41:21,789 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:41:21,791 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:41:21,869 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2019-10-07 14:41:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-07 14:41:21,887 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:21,889 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:21,891 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:21,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:21,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1462747666, now seen corresponding path program 1 times [2019-10-07 14:41:21,903 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:21,903 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:21,904 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:21,904 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:22,619 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 14:41:22,620 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:22,621 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:22,621 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:41:22,629 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:41:22,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:41:22,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:41:22,646 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 2 states. [2019-10-07 14:41:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:22,713 INFO L93 Difference]: Finished difference Result 526 states and 626 transitions. [2019-10-07 14:41:22,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:41:22,715 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 153 [2019-10-07 14:41:22,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:22,734 INFO L225 Difference]: With dead ends: 526 [2019-10-07 14:41:22,734 INFO L226 Difference]: Without dead ends: 345 [2019-10-07 14:41:22,740 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 14:41:22,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-10-07 14:41:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2019-10-07 14:41:22,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-10-07 14:41:22,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 406 transitions. [2019-10-07 14:41:22,832 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 406 transitions. Word has length 153 [2019-10-07 14:41:22,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:22,834 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 406 transitions. [2019-10-07 14:41:22,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:41:22,835 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 406 transitions. [2019-10-07 14:41:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 14:41:22,841 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:22,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:22,842 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:22,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:22,842 INFO L82 PathProgramCache]: Analyzing trace with hash -720746054, now seen corresponding path program 1 times [2019-10-07 14:41:22,842 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:22,843 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:22,843 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:22,843 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:22,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:23,063 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 14:41:23,064 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:23,064 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:23,065 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:23,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:23,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:23,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:23,068 INFO L87 Difference]: Start difference. First operand 345 states and 406 transitions. Second operand 3 states. [2019-10-07 14:41:23,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:23,143 INFO L93 Difference]: Finished difference Result 511 states and 592 transitions. [2019-10-07 14:41:23,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:23,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-07 14:41:23,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:23,154 INFO L225 Difference]: With dead ends: 511 [2019-10-07 14:41:23,155 INFO L226 Difference]: Without dead ends: 347 [2019-10-07 14:41:23,161 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 14:41:23,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-10-07 14:41:23,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-10-07 14:41:23,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-07 14:41:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 408 transitions. [2019-10-07 14:41:23,200 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 408 transitions. Word has length 154 [2019-10-07 14:41:23,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:23,201 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 408 transitions. [2019-10-07 14:41:23,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 408 transitions. [2019-10-07 14:41:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 14:41:23,210 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:23,210 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, 1, 1, 1, 1, 1] [2019-10-07 14:41:23,210 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:23,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:23,211 INFO L82 PathProgramCache]: Analyzing trace with hash 227599931, now seen corresponding path program 1 times [2019-10-07 14:41:23,211 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:23,211 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:23,211 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:23,212 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:23,521 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 14:41:23,522 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:23,522 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:23,522 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:23,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:23,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:23,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:23,526 INFO L87 Difference]: Start difference. First operand 347 states and 408 transitions. Second operand 3 states. [2019-10-07 14:41:23,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:23,599 INFO L93 Difference]: Finished difference Result 678 states and 826 transitions. [2019-10-07 14:41:23,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:23,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-10-07 14:41:23,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:23,607 INFO L225 Difference]: With dead ends: 678 [2019-10-07 14:41:23,607 INFO L226 Difference]: Without dead ends: 389 [2019-10-07 14:41:23,609 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 14:41:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-07 14:41:23,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 388. [2019-10-07 14:41:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2019-10-07 14:41:23,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 479 transitions. [2019-10-07 14:41:23,665 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 479 transitions. Word has length 163 [2019-10-07 14:41:23,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:23,666 INFO L462 AbstractCegarLoop]: Abstraction has 388 states and 479 transitions. [2019-10-07 14:41:23,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:23,666 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 479 transitions. [2019-10-07 14:41:23,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-07 14:41:23,673 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:23,673 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, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:23,674 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:23,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:23,674 INFO L82 PathProgramCache]: Analyzing trace with hash 2100256523, now seen corresponding path program 1 times [2019-10-07 14:41:23,675 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:23,675 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:23,675 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:23,675 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:23,882 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 14:41:23,883 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:23,887 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:23,887 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:23,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:23,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:23,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:23,890 INFO L87 Difference]: Start difference. First operand 388 states and 479 transitions. Second operand 3 states. [2019-10-07 14:41:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:23,939 INFO L93 Difference]: Finished difference Result 798 states and 1034 transitions. [2019-10-07 14:41:23,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:23,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-07 14:41:23,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:23,947 INFO L225 Difference]: With dead ends: 798 [2019-10-07 14:41:23,947 INFO L226 Difference]: Without dead ends: 468 [2019-10-07 14:41:23,949 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 14:41:23,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-07 14:41:23,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 467. [2019-10-07 14:41:23,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-07 14:41:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 615 transitions. [2019-10-07 14:41:23,982 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 615 transitions. Word has length 164 [2019-10-07 14:41:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:23,984 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 615 transitions. [2019-10-07 14:41:23,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:23,984 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 615 transitions. [2019-10-07 14:41:23,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 14:41:23,989 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:23,990 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:23,990 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:23,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1897723355, now seen corresponding path program 1 times [2019-10-07 14:41:23,991 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:23,991 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:23,991 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:23,991 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:24,247 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 14:41:24,247 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:24,248 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:24,248 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:24,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:24,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:24,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:24,249 INFO L87 Difference]: Start difference. First operand 467 states and 615 transitions. Second operand 3 states. [2019-10-07 14:41:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:24,286 INFO L93 Difference]: Finished difference Result 1029 states and 1432 transitions. [2019-10-07 14:41:24,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:24,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-07 14:41:24,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:24,292 INFO L225 Difference]: With dead ends: 1029 [2019-10-07 14:41:24,293 INFO L226 Difference]: Without dead ends: 620 [2019-10-07 14:41:24,295 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 14:41:24,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2019-10-07 14:41:24,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 619. [2019-10-07 14:41:24,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-07 14:41:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 875 transitions. [2019-10-07 14:41:24,331 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 875 transitions. Word has length 165 [2019-10-07 14:41:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:24,331 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 875 transitions. [2019-10-07 14:41:24,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:24,332 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 875 transitions. [2019-10-07 14:41:24,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 14:41:24,336 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:24,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:24,337 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:24,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:24,337 INFO L82 PathProgramCache]: Analyzing trace with hash 426954944, now seen corresponding path program 1 times [2019-10-07 14:41:24,338 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:24,338 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:24,338 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:24,338 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:24,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:41:25,292 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:25,293 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:25,293 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:41:25,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:41:25,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:41:25,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:41:25,295 INFO L87 Difference]: Start difference. First operand 619 states and 875 transitions. Second operand 28 states. [2019-10-07 14:41:33,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:33,333 INFO L93 Difference]: Finished difference Result 1008 states and 1353 transitions. [2019-10-07 14:41:33,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:41:33,334 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 167 [2019-10-07 14:41:33,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:33,341 INFO L225 Difference]: With dead ends: 1008 [2019-10-07 14:41:33,341 INFO L226 Difference]: Without dead ends: 854 [2019-10-07 14:41:33,343 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-07 14:41:33,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2019-10-07 14:41:33,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 842. [2019-10-07 14:41:33,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2019-10-07 14:41:33,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1152 transitions. [2019-10-07 14:41:33,388 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1152 transitions. Word has length 167 [2019-10-07 14:41:33,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:33,389 INFO L462 AbstractCegarLoop]: Abstraction has 842 states and 1152 transitions. [2019-10-07 14:41:33,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:41:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1152 transitions. [2019-10-07 14:41:33,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-07 14:41:33,394 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:33,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:33,395 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:33,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:33,395 INFO L82 PathProgramCache]: Analyzing trace with hash -798172773, now seen corresponding path program 1 times [2019-10-07 14:41:33,396 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:33,396 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:33,396 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:33,396 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:33,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:41:33,646 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:33,646 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:33,647 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:41:33,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:41:33,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:41:33,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:41:33,650 INFO L87 Difference]: Start difference. First operand 842 states and 1152 transitions. Second operand 10 states. [2019-10-07 14:41:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:33,732 INFO L93 Difference]: Finished difference Result 851 states and 1162 transitions. [2019-10-07 14:41:33,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:41:33,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2019-10-07 14:41:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:33,741 INFO L225 Difference]: With dead ends: 851 [2019-10-07 14:41:33,741 INFO L226 Difference]: Without dead ends: 848 [2019-10-07 14:41:33,742 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:41:33,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2019-10-07 14:41:33,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2019-10-07 14:41:33,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2019-10-07 14:41:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1157 transitions. [2019-10-07 14:41:33,798 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1157 transitions. Word has length 171 [2019-10-07 14:41:33,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:33,800 INFO L462 AbstractCegarLoop]: Abstraction has 848 states and 1157 transitions. [2019-10-07 14:41:33,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:41:33,801 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1157 transitions. [2019-10-07 14:41:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-07 14:41:33,863 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:33,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:33,864 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:33,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:33,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1487517778, now seen corresponding path program 1 times [2019-10-07 14:41:33,867 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:33,867 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:33,867 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:33,868 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:33,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:35,054 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:41:35,054 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:35,054 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:41:35,054 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 14:41:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:35,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 2789 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:41:35,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:41:35,835 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 14:41:35,835 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:41:36,112 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 14:41:36,112 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:41:36,146 INFO L162 IcfgInterpreter]: Started Sifa with 160 locations of interest [2019-10-07 14:41:36,146 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:41:36,153 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:41:36,162 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:41:36,163 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:42:19,811 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 664 [2019-10-07 14:42:23,311 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 291 DAG size of output: 237 [2019-10-07 14:42:23,652 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2019-10-07 14:42:23,981 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2019-10-07 14:42:24,209 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2019-10-07 14:42:24,377 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:42:25,025 WARN L191 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 993 [2019-10-07 14:42:25,691 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 993 [2019-10-07 14:42:26,338 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 993 [2019-10-07 14:42:26,475 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:42:27,110 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 993 [2019-10-07 14:42:28,269 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 995 DAG size of output: 993 [2019-10-07 14:42:28,880 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 993 [2019-10-07 14:42:29,011 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:42:29,600 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 993 [2019-10-07 14:42:30,161 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 993 [2019-10-07 14:42:30,780 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 993 [2019-10-07 14:42:30,900 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:42:31,482 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 993 [2019-10-07 14:42:31,510 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 547 for LOIs [2019-10-07 14:42:32,082 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:42:32,521 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 924 [2019-10-07 14:42:32,523 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1043 for LOIs [2019-10-07 14:42:33,095 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:33,636 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:33,967 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:34,855 WARN L191 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:35,447 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:35,999 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:36,228 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:37,133 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:37,756 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:38,302 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:38,534 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:39,423 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:40,313 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 1231 DAG size of output: 1043 [2019-10-07 14:42:40,878 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:41,138 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:42,037 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:42,596 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:43,140 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:43,386 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:44,277 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:44,821 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:45,363 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:45,598 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:46,503 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:47,043 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:47,600 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:47,827 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:48,722 WARN L191 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:49,265 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:49,813 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:50,040 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:50,945 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:51,486 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:52,026 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:52,254 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:53,164 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:53,705 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:54,254 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:54,486 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:55,376 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:55,927 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:56,467 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:56,694 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:57,595 WARN L191 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:42:58,145 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:58,685 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:42:58,918 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:42:59,806 WARN L191 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:00,351 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:43:00,896 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 14:43:01,124 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:02,018 WARN L191 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:02,995 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:03,894 WARN L191 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:04,139 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:05,032 WARN L191 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:06,780 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1231 DAG size of output: 1229 [2019-10-07 14:43:07,674 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:07,921 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:08,822 WARN L191 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:09,709 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:10,609 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:10,837 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:11,735 WARN L191 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:12,709 WARN L191 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 1231 [2019-10-07 14:43:13,610 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1231 [2019-10-07 14:43:13,848 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:43:14,755 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:16,341 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1235 DAG size of output: 1231 [2019-10-07 14:43:17,238 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1231 [2019-10-07 14:43:17,481 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:43:18,386 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:19,292 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1231 [2019-10-07 14:43:20,189 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1231 [2019-10-07 14:43:20,424 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:43:21,323 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:22,232 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1231 [2019-10-07 14:43:23,127 WARN L191 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 1231 [2019-10-07 14:43:23,367 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:43:24,276 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:25,172 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:26,075 WARN L191 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:26,309 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:43:27,213 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:43:29,774 WARN L191 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 1231 DAG size of output: 1229 [2019-10-07 14:43:30,667 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:30,909 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:31,814 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:33,473 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1231 DAG size of output: 1229 [2019-10-07 14:43:34,374 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:34,607 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:35,512 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:36,405 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:37,314 WARN L191 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:37,540 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:38,439 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:41,255 WARN L191 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 1231 DAG size of output: 1229 [2019-10-07 14:43:42,149 WARN L191 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:42,384 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:43,279 WARN L191 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:44,942 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1231 DAG size of output: 1229 [2019-10-07 14:43:45,847 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:46,088 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:46,988 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:47,879 WARN L191 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:48,778 WARN L191 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:49,012 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:43:49,910 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1229 [2019-10-07 14:43:50,845 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:51,745 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:51,988 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:43:52,897 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:54,570 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1235 DAG size of output: 1233 [2019-10-07 14:43:55,478 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:55,715 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:43:56,617 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:58,265 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1235 DAG size of output: 1233 [2019-10-07 14:43:59,169 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:43:59,410 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:44:00,305 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:44:01,964 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1240 DAG size of output: 1233 [2019-10-07 14:44:02,873 WARN L191 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:44:03,134 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:44:04,040 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:44:05,611 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1242 DAG size of output: 1235 [2019-10-07 14:44:06,520 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:44:06,756 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:44:07,654 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:44:07,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:44:07,925 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 14:44:07,932 INFO L168 Benchmark]: Toolchain (without parser) took 172257.61 ms. Allocated memory was 145.2 MB in the beginning and 1.0 GB in the end (delta: 859.8 MB). Free memory was 100.5 MB in the beginning and 617.9 MB in the end (delta: -517.4 MB). Peak memory consumption was 342.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,933 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1214.72 ms. Allocated memory was 145.2 MB in the beginning and 206.6 MB in the end (delta: 61.3 MB). Free memory was 100.3 MB in the beginning and 143.1 MB in the end (delta: -42.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,934 INFO L168 Benchmark]: Boogie Preprocessor took 202.86 ms. Allocated memory is still 206.6 MB. Free memory was 143.1 MB in the beginning and 134.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,935 INFO L168 Benchmark]: RCFGBuilder took 4607.65 ms. Allocated memory was 206.6 MB in the beginning and 286.3 MB in the end (delta: 79.7 MB). Free memory was 134.1 MB in the beginning and 86.8 MB in the end (delta: 47.2 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,935 INFO L168 Benchmark]: TraceAbstraction took 166227.76 ms. Allocated memory was 286.3 MB in the beginning and 1.0 GB in the end (delta: 718.8 MB). Free memory was 83.9 MB in the beginning and 617.9 MB in the end (delta: -534.0 MB). Peak memory consumption was 184.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,940 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1214.72 ms. Allocated memory was 145.2 MB in the beginning and 206.6 MB in the end (delta: 61.3 MB). Free memory was 100.3 MB in the beginning and 143.1 MB in the end (delta: -42.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 202.86 ms. Allocated memory is still 206.6 MB. Free memory was 143.1 MB in the beginning and 134.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4607.65 ms. Allocated memory was 206.6 MB in the beginning and 286.3 MB in the end (delta: 79.7 MB). Free memory was 134.1 MB in the beginning and 86.8 MB in the end (delta: 47.2 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 166227.76 ms. Allocated memory was 286.3 MB in the beginning and 1.0 GB in the end (delta: 718.8 MB). Free memory was 83.9 MB in the beginning and 617.9 MB in the end (delta: -534.0 MB). Peak memory consumption was 184.8 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...