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_spec6_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:02:20,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:02:20,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:02:20,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:02:20,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:02:20,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:02:20,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:02:20,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:02:20,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:02:20,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:02:20,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:02:20,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:02:20,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:02:20,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:02:20,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:02:20,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:02:20,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:02:20,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:02:20,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:02:20,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:02:20,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:02:20,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:02:20,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:02:20,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:02:20,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:02:20,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:02:20,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:02:20,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:02:20,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:02:20,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:02:20,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:02:20,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:02:20,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:02:20,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:02:20,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:02:20,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:02:20,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:02:20,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:02:20,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:02:20,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:02:20,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:02:20,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:02:20,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:02:20,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:02:20,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:02:20,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:02:20,413 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:02:20,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:02:20,414 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:02:20,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:02:20,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:02:20,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:02:20,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:02:20,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:02:20,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:02:20,416 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:02:20,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:02:20,416 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:02:20,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:02:20,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:02:20,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:02:20,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:02:20,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:02:20,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:02:20,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:02:20,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:02:20,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:02:20,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:02:20,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:02:20,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:02:20,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:02:20,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:02:20,781 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:02:20,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:02:20,788 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:02:20,788 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:02:20,789 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-07 15:02:20,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d589d2432/48aafa3bfd194f9eb9e147f8181aa086/FLAG689211dbf [2019-10-07 15:02:21,489 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:02:21,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-07 15:02:21,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d589d2432/48aafa3bfd194f9eb9e147f8181aa086/FLAG689211dbf [2019-10-07 15:02:21,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d589d2432/48aafa3bfd194f9eb9e147f8181aa086 [2019-10-07 15:02:21,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:02:21,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:02:21,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:02:21,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:02:21,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:02:21,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:02:21" (1/1) ... [2019-10-07 15:02:21,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d512b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:21, skipping insertion in model container [2019-10-07 15:02:21,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:02:21" (1/1) ... [2019-10-07 15:02:21,684 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:02:21,748 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:02:22,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:02:22,509 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:02:22,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:02:22,805 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:02:22,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22 WrapperNode [2019-10-07 15:02:22,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:02:22,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:02:22,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:02:22,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:02:22,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22" (1/1) ... [2019-10-07 15:02:22,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22" (1/1) ... [2019-10-07 15:02:22,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22" (1/1) ... [2019-10-07 15:02:22,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22" (1/1) ... [2019-10-07 15:02:22,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22" (1/1) ... [2019-10-07 15:02:23,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22" (1/1) ... [2019-10-07 15:02:23,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22" (1/1) ... [2019-10-07 15:02:23,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:02:23,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:02:23,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:02:23,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:02:23,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:02:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:02:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:02:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:02:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:02:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:02:23,127 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:02:23,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:02:23,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:02:23,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:02:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:02:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:02:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:02:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:02:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:02:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:02:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:02:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:02:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:02:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:02:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:02:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:02:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:02:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:02:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:02:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:02:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:02:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:02:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:02:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:02:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:02:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:02:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:02:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:02:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:02:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:02:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:02:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:02:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:02:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:02:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:02:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:02:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:02:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:02:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:02:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:02:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:02:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:02:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:02:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:02:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:02:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:02:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:02:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:02:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:02:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:02:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:02:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:02:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:02:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:02:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:02:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:02:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:02:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:02:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:02:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:02:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:02:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:02:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:02:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:02:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 15:02:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:02:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:02:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:02:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:02:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:02:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:02:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:02:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:02:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:02:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:02:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:02:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:02:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:02:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:02:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:02:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:02:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:02:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:02:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:02:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:02:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:02:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:02:23,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:02:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:02:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:02:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:02:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:02:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:02:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 15:02:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:02:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:02:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:02:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:02:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:02:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:02:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:02:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:02:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:02:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:02:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:02:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:02:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:02:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:02:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:02:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:02:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:02:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:02:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:02:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:02:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:02:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:02:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:02:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:02:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:02:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:02:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:02:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:02:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:02:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:02:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:02:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:02:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:02:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:02:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:02:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:02:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:02:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:02:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:02:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:02:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:02:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:02:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:02:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:02:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:02:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:02:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:02:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:02:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:02:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:02:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:02:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:02:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:02:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:02:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:02:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:02:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:02:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:02:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:02:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:02:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:02:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:02:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:02:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:02:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:02:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:02:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:02:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:02:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:02:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:02:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:02:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:02:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:02:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:02:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:02:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:02:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:02:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:02:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:02:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:02:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:02:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:02:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:02:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:02:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:02:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:02:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:02:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:02:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:02:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:02:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:02:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:02:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:02:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:02:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:02:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:02:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:02:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:02:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:02:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:02:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:02:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:02:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:02:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:02:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:02:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:02:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:02:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:02:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:02:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:02:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:02:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:02:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:02:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:02:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:02:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:02:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:02:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:02:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:02:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 15:02:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:02:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:02:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:02:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:02:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:02:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:02:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:02:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:02:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:02:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:02:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:02:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:02:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:02:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:02:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:02:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:02:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:02:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:02:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:02:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:02:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:02:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 15:02:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:02:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:02:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:02:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:02:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:02:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:02:27,778 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:02:27,778 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:02:27,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:02:27 BoogieIcfgContainer [2019-10-07 15:02:27,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:02:27,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:02:27,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:02:27,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:02:27,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:02:21" (1/3) ... [2019-10-07 15:02:27,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d44eb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:02:27, skipping insertion in model container [2019-10-07 15:02:27,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:22" (2/3) ... [2019-10-07 15:02:27,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d44eb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:02:27, skipping insertion in model container [2019-10-07 15:02:27,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:02:27" (3/3) ... [2019-10-07 15:02:27,788 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product29.cil.c [2019-10-07 15:02:27,798 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:02:27,813 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:02:27,824 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:02:27,852 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:02:27,852 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:02:27,852 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:02:27,853 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:02:27,853 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:02:27,853 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:02:27,853 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:02:27,853 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:02:27,880 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2019-10-07 15:02:27,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 15:02:27,903 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:27,905 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:27,907 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:27,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:27,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1311339038, now seen corresponding path program 1 times [2019-10-07 15:02:27,924 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:27,924 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:27,924 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:27,924 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:28,589 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 15:02:28,590 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:28,590 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:28,591 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:02:28,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:02:28,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:02:28,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:02:28,614 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 2 states. [2019-10-07 15:02:28,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:28,722 INFO L93 Difference]: Finished difference Result 597 states and 718 transitions. [2019-10-07 15:02:28,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:02:28,724 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-07 15:02:28,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:28,753 INFO L225 Difference]: With dead ends: 597 [2019-10-07 15:02:28,754 INFO L226 Difference]: Without dead ends: 377 [2019-10-07 15:02:28,762 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:02:28,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-07 15:02:28,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-10-07 15:02:28,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-07 15:02:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 449 transitions. [2019-10-07 15:02:28,842 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 449 transitions. Word has length 154 [2019-10-07 15:02:28,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:28,845 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 449 transitions. [2019-10-07 15:02:28,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:02:28,845 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 449 transitions. [2019-10-07 15:02:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 15:02:28,855 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:28,855 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:28,856 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:28,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:28,856 INFO L82 PathProgramCache]: Analyzing trace with hash 572850053, now seen corresponding path program 1 times [2019-10-07 15:02:28,857 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:28,857 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:28,857 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:28,857 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:28,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:29,196 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 15:02:29,196 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:29,197 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:29,197 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:02:29,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:02:29,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:02:29,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:29,200 INFO L87 Difference]: Start difference. First operand 377 states and 449 transitions. Second operand 3 states. [2019-10-07 15:02:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:29,249 INFO L93 Difference]: Finished difference Result 582 states and 685 transitions. [2019-10-07 15:02:29,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:02:29,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-07 15:02:29,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:29,263 INFO L225 Difference]: With dead ends: 582 [2019-10-07 15:02:29,264 INFO L226 Difference]: Without dead ends: 379 [2019-10-07 15:02:29,270 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-07 15:02:29,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-10-07 15:02:29,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-07 15:02:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 451 transitions. [2019-10-07 15:02:29,324 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 451 transitions. Word has length 155 [2019-10-07 15:02:29,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:29,325 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 451 transitions. [2019-10-07 15:02:29,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:02:29,325 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 451 transitions. [2019-10-07 15:02:29,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 15:02:29,333 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:29,334 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:29,334 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:29,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:29,335 INFO L82 PathProgramCache]: Analyzing trace with hash -113502009, now seen corresponding path program 1 times [2019-10-07 15:02:29,335 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:29,335 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:29,336 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:29,336 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:29,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:29,715 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:02:29,715 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:29,715 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:29,716 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:02:29,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:02:29,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:02:29,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:29,717 INFO L87 Difference]: Start difference. First operand 379 states and 451 transitions. Second operand 3 states. [2019-10-07 15:02:29,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:29,770 INFO L93 Difference]: Finished difference Result 740 states and 909 transitions. [2019-10-07 15:02:29,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:02:29,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-07 15:02:29,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:29,779 INFO L225 Difference]: With dead ends: 740 [2019-10-07 15:02:29,779 INFO L226 Difference]: Without dead ends: 419 [2019-10-07 15:02:29,781 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:29,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2019-10-07 15:02:29,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2019-10-07 15:02:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-07 15:02:29,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 519 transitions. [2019-10-07 15:02:29,835 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 519 transitions. Word has length 160 [2019-10-07 15:02:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:29,836 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 519 transitions. [2019-10-07 15:02:29,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:02:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 519 transitions. [2019-10-07 15:02:29,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-07 15:02:29,841 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:29,842 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:29,843 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:29,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:29,843 INFO L82 PathProgramCache]: Analyzing trace with hash 318130641, now seen corresponding path program 1 times [2019-10-07 15:02:29,843 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:29,843 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:29,844 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:29,844 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:29,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:30,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:02:30,696 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:30,697 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:30,697 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 15:02:30,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 15:02:30,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 15:02:30,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:02:30,702 INFO L87 Difference]: Start difference. First operand 418 states and 519 transitions. Second operand 26 states. [2019-10-07 15:02:39,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:39,274 INFO L93 Difference]: Finished difference Result 1146 states and 1423 transitions. [2019-10-07 15:02:39,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-07 15:02:39,275 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 161 [2019-10-07 15:02:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:39,284 INFO L225 Difference]: With dead ends: 1146 [2019-10-07 15:02:39,285 INFO L226 Difference]: Without dead ends: 947 [2019-10-07 15:02:39,288 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2019-10-07 15:02:39,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2019-10-07 15:02:39,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 934. [2019-10-07 15:02:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2019-10-07 15:02:39,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1141 transitions. [2019-10-07 15:02:39,358 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1141 transitions. Word has length 161 [2019-10-07 15:02:39,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:39,361 INFO L462 AbstractCegarLoop]: Abstraction has 934 states and 1141 transitions. [2019-10-07 15:02:39,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 15:02:39,361 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1141 transitions. [2019-10-07 15:02:39,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 15:02:39,367 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:39,367 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:39,367 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:39,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:39,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1823644212, now seen corresponding path program 1 times [2019-10-07 15:02:39,368 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:39,368 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:39,368 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:39,368 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:39,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:39,953 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:02:39,953 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:39,953 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:39,954 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-07 15:02:39,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-07 15:02:39,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-07 15:02:39,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-07 15:02:39,956 INFO L87 Difference]: Start difference. First operand 934 states and 1141 transitions. Second operand 16 states. [2019-10-07 15:02:44,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:44,379 INFO L93 Difference]: Finished difference Result 2145 states and 2624 transitions. [2019-10-07 15:02:44,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 15:02:44,379 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 167 [2019-10-07 15:02:44,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:44,395 INFO L225 Difference]: With dead ends: 2145 [2019-10-07 15:02:44,395 INFO L226 Difference]: Without dead ends: 1776 [2019-10-07 15:02:44,402 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-10-07 15:02:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2019-10-07 15:02:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1728. [2019-10-07 15:02:44,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2019-10-07 15:02:44,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2103 transitions. [2019-10-07 15:02:44,516 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2103 transitions. Word has length 167 [2019-10-07 15:02:44,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:44,517 INFO L462 AbstractCegarLoop]: Abstraction has 1728 states and 2103 transitions. [2019-10-07 15:02:44,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-07 15:02:44,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2103 transitions. [2019-10-07 15:02:44,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 15:02:44,521 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:44,522 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:44,522 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:44,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:44,522 INFO L82 PathProgramCache]: Analyzing trace with hash 905761496, now seen corresponding path program 1 times [2019-10-07 15:02:44,523 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:44,523 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:44,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:44,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:44,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:44,684 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:02:44,685 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:44,685 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:44,685 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:02:44,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:02:44,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:02:44,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:44,687 INFO L87 Difference]: Start difference. First operand 1728 states and 2103 transitions. Second operand 3 states. [2019-10-07 15:02:44,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:44,789 INFO L93 Difference]: Finished difference Result 3510 states and 4339 transitions. [2019-10-07 15:02:44,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:02:44,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-07 15:02:44,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:44,802 INFO L225 Difference]: With dead ends: 3510 [2019-10-07 15:02:44,802 INFO L226 Difference]: Without dead ends: 1840 [2019-10-07 15:02:44,809 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:44,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2019-10-07 15:02:44,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1838. [2019-10-07 15:02:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-10-07 15:02:44,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2294 transitions. [2019-10-07 15:02:44,944 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2294 transitions. Word has length 189 [2019-10-07 15:02:44,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:44,946 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 2294 transitions. [2019-10-07 15:02:44,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:02:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2294 transitions. [2019-10-07 15:02:44,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-07 15:02:44,953 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:44,954 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:44,954 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:44,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:44,955 INFO L82 PathProgramCache]: Analyzing trace with hash 574592110, now seen corresponding path program 1 times [2019-10-07 15:02:44,955 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:44,955 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:44,955 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:44,956 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:44,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:45,301 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:02:45,301 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:45,302 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:45,302 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:02:45,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:02:45,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:02:45,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:45,303 INFO L87 Difference]: Start difference. First operand 1838 states and 2294 transitions. Second operand 3 states. [2019-10-07 15:02:45,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:45,390 INFO L93 Difference]: Finished difference Result 3825 states and 4888 transitions. [2019-10-07 15:02:45,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:02:45,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-07 15:02:45,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:45,405 INFO L225 Difference]: With dead ends: 3825 [2019-10-07 15:02:45,405 INFO L226 Difference]: Without dead ends: 2045 [2019-10-07 15:02:45,413 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:45,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2019-10-07 15:02:45,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2043. [2019-10-07 15:02:45,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2043 states. [2019-10-07 15:02:45,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2649 transitions. [2019-10-07 15:02:45,539 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2649 transitions. Word has length 190 [2019-10-07 15:02:45,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:45,540 INFO L462 AbstractCegarLoop]: Abstraction has 2043 states and 2649 transitions. [2019-10-07 15:02:45,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:02:45,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2649 transitions. [2019-10-07 15:02:45,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 15:02:45,547 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:45,547 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:45,547 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:45,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:45,548 INFO L82 PathProgramCache]: Analyzing trace with hash -753703558, now seen corresponding path program 1 times [2019-10-07 15:02:45,548 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:45,548 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:45,548 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:45,548 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:45,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:45,924 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:02:45,924 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:45,924 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:45,924 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:02:45,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:02:45,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:02:45,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:02:45,927 INFO L87 Difference]: Start difference. First operand 2043 states and 2649 transitions. Second operand 12 states. [2019-10-07 15:02:50,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:50,857 INFO L93 Difference]: Finished difference Result 4276 states and 5709 transitions. [2019-10-07 15:02:50,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:02:50,858 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 191 [2019-10-07 15:02:50,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:50,896 INFO L225 Difference]: With dead ends: 4276 [2019-10-07 15:02:50,896 INFO L226 Difference]: Without dead ends: 3169 [2019-10-07 15:02:50,902 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:02:50,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2019-10-07 15:02:51,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 2444. [2019-10-07 15:02:51,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2444 states. [2019-10-07 15:02:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3350 transitions. [2019-10-07 15:02:51,098 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3350 transitions. Word has length 191 [2019-10-07 15:02:51,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:51,101 INFO L462 AbstractCegarLoop]: Abstraction has 2444 states and 3350 transitions. [2019-10-07 15:02:51,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:02:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3350 transitions. [2019-10-07 15:02:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-07 15:02:51,111 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:51,111 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:51,111 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:51,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:51,112 INFO L82 PathProgramCache]: Analyzing trace with hash -666170033, now seen corresponding path program 1 times [2019-10-07 15:02:51,112 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:51,112 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:51,112 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:51,112 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-07 15:02:51,344 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:51,345 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:51,345 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:02:51,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:02:51,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:02:51,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:51,347 INFO L87 Difference]: Start difference. First operand 2444 states and 3350 transitions. Second operand 3 states. [2019-10-07 15:02:51,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:51,520 INFO L93 Difference]: Finished difference Result 5111 states and 7156 transitions. [2019-10-07 15:02:51,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:02:51,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-07 15:02:51,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:51,547 INFO L225 Difference]: With dead ends: 5111 [2019-10-07 15:02:51,548 INFO L226 Difference]: Without dead ends: 2729 [2019-10-07 15:02:51,562 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:02:51,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2019-10-07 15:02:51,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2728. [2019-10-07 15:02:51,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2728 states. [2019-10-07 15:02:51,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 3850 transitions. [2019-10-07 15:02:51,788 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 3850 transitions. Word has length 197 [2019-10-07 15:02:51,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:51,789 INFO L462 AbstractCegarLoop]: Abstraction has 2728 states and 3850 transitions. [2019-10-07 15:02:51,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:02:51,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 3850 transitions. [2019-10-07 15:02:51,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-07 15:02:51,802 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:51,802 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:51,803 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:51,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:51,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1339750124, now seen corresponding path program 1 times [2019-10-07 15:02:51,804 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:51,804 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:51,804 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:51,804 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:51,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:02:52,204 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:52,204 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:02:52,205 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:02:52,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:02:52,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:02:52,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:02:52,206 INFO L87 Difference]: Start difference. First operand 2728 states and 3850 transitions. Second operand 12 states. [2019-10-07 15:02:57,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:02:57,171 INFO L93 Difference]: Finished difference Result 5088 states and 7127 transitions. [2019-10-07 15:02:57,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:02:57,172 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 194 [2019-10-07 15:02:57,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:02:57,195 INFO L225 Difference]: With dead ends: 5088 [2019-10-07 15:02:57,195 INFO L226 Difference]: Without dead ends: 3300 [2019-10-07 15:02:57,204 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:02:57,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2019-10-07 15:02:57,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 2575. [2019-10-07 15:02:57,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2575 states. [2019-10-07 15:02:57,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 3569 transitions. [2019-10-07 15:02:57,379 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 3569 transitions. Word has length 194 [2019-10-07 15:02:57,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:02:57,379 INFO L462 AbstractCegarLoop]: Abstraction has 2575 states and 3569 transitions. [2019-10-07 15:02:57,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:02:57,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 3569 transitions. [2019-10-07 15:02:57,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-07 15:02:57,389 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:57,389 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:02:57,390 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:57,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:57,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1751023813, now seen corresponding path program 1 times [2019-10-07 15:02:57,390 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:57,391 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:57,391 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:57,391 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:57,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:57,664 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:02:57,665 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:57,665 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:02:57,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:02:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:02:58,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 3087 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:02:58,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:02:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:02:58,468 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:02:58,706 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:02:58,707 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:02:58,739 INFO L162 IcfgInterpreter]: Started Sifa with 178 locations of interest [2019-10-07 15:02:58,739 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:02:58,746 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:02:58,755 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:02:58,755 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:04:24,359 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 722 [2019-10-07 15:04:29,383 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 368 DAG size of output: 299 [2019-10-07 15:04:29,822 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 774 [2019-10-07 15:04:30,259 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 774 [2019-10-07 15:04:30,624 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 774 [2019-10-07 15:04:30,801 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 460 [2019-10-07 15:04:31,533 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:04:32,294 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:04:33,007 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:04:33,162 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 460 [2019-10-07 15:04:33,891 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:04:35,210 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1081 DAG size of output: 1079 [2019-10-07 15:04:35,914 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:04:36,079 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 460 [2019-10-07 15:04:36,798 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:04:37,478 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:04:38,180 WARN L191 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:04:38,307 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 460 [2019-10-07 15:04:39,028 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 15:04:39,052 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 580 for LOIs [2019-10-07 15:04:39,375 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 685 [2019-10-07 15:04:39,498 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 685 [2019-10-07 15:04:39,625 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 460 [2019-10-07 15:04:40,122 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 990 [2019-10-07 15:04:40,124 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1130 for LOIs [2019-10-07 15:04:40,811 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:41,469 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:41,779 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:04:42,832 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:04:43,563 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:44,267 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:44,619 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:04:45,752 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:04:47,048 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:47,746 WARN L191 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:48,036 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:04:49,164 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:04:50,267 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1321 DAG size of output: 1130 [2019-10-07 15:04:50,981 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:51,303 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:04:52,454 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:04:53,184 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:53,887 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:54,169 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:04:55,292 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:04:56,023 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:56,729 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:57,006 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:04:58,141 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:04:58,852 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:59,571 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:04:59,900 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:01,039 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:01,746 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:02,453 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:02,723 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:03,872 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:04,586 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:05,294 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:05,563 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:06,694 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:07,399 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:08,112 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:08,381 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:09,512 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:10,232 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:10,948 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:11,233 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:12,375 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:13,098 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:13,809 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:14,080 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:15,251 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:15,973 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:16,698 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:05:16,976 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:18,102 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:19,292 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:20,461 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:20,754 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:21,889 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:23,986 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 1321 DAG size of output: 1319 [2019-10-07 15:05:25,145 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:25,431 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:26,568 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:27,713 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:28,853 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:29,127 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:30,289 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:31,480 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:05:32,619 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:05:32,897 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:05:34,052 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:05:36,764 WARN L191 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 1325 DAG size of output: 1321 [2019-10-07 15:05:37,907 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1321 [2019-10-07 15:05:38,186 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:05:39,337 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:05:41,433 WARN L191 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 1325 DAG size of output: 1321 [2019-10-07 15:05:42,573 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1321 [2019-10-07 15:05:42,843 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:05:43,990 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:05:45,153 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1321 [2019-10-07 15:05:46,297 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1321 [2019-10-07 15:05:46,576 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:05:47,732 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:05:48,864 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:05:50,001 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:05:50,286 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:05:51,436 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1325 [2019-10-07 15:05:54,405 WARN L191 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 1321 DAG size of output: 1319 [2019-10-07 15:05:55,533 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:55,818 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:05:56,952 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:05:59,325 WARN L191 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 1321 DAG size of output: 1319 [2019-10-07 15:06:00,456 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:00,767 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:06:01,909 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:03,047 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:04,178 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:04,448 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:06:05,586 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:07,696 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 1321 DAG size of output: 1319 [2019-10-07 15:06:08,828 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:09,114 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:06:10,246 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:12,317 WARN L191 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 1321 DAG size of output: 1319 [2019-10-07 15:06:13,447 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:13,724 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:06:14,857 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:15,991 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:17,138 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:17,410 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 15:06:18,537 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1319 [2019-10-07 15:06:20,653 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 1325 DAG size of output: 1323 [2019-10-07 15:06:21,806 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:06:22,088 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:06:23,220 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:06:24,371 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:06:25,507 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:06:25,785 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:06:26,937 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:06:28,980 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1325 DAG size of output: 1323 [2019-10-07 15:06:30,118 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:06:30,390 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:06:31,533 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:06:33,654 WARN L191 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 1330 DAG size of output: 1323 [2019-10-07 15:06:34,806 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:06:35,084 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:06:36,237 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:06:38,352 WARN L191 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 1332 DAG size of output: 1325 [2019-10-07 15:06:39,531 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 1325 [2019-10-07 15:06:39,816 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:06:40,976 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1325 [2019-10-07 15:06:41,249 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:06:41,250 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:06:41,262 INFO L168 Benchmark]: Toolchain (without parser) took 259592.93 ms. Allocated memory was 147.3 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 102.5 MB in the beginning and 122.7 MB in the end (delta: -20.2 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2019-10-07 15:06:41,263 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 15:06:41,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1139.55 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 102.3 MB in the beginning and 138.0 MB in the end (delta: -35.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:41,278 INFO L168 Benchmark]: Boogie Preprocessor took 251.58 ms. Allocated memory is still 205.5 MB. Free memory was 138.0 MB in the beginning and 128.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:41,279 INFO L168 Benchmark]: RCFGBuilder took 4720.60 ms. Allocated memory was 205.5 MB in the beginning and 287.8 MB in the end (delta: 82.3 MB). Free memory was 128.6 MB in the beginning and 189.2 MB in the end (delta: -60.6 MB). Peak memory consumption was 129.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:41,279 INFO L168 Benchmark]: TraceAbstraction took 253476.69 ms. Allocated memory was 287.8 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 189.2 MB in the beginning and 122.7 MB in the end (delta: 66.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2019-10-07 15:06:41,286 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1139.55 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 102.3 MB in the beginning and 138.0 MB in the end (delta: -35.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 251.58 ms. Allocated memory is still 205.5 MB. Free memory was 138.0 MB in the beginning and 128.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4720.60 ms. Allocated memory was 205.5 MB in the beginning and 287.8 MB in the end (delta: 82.3 MB). Free memory was 128.6 MB in the beginning and 189.2 MB in the end (delta: -60.6 MB). Peak memory consumption was 129.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 253476.69 ms. Allocated memory was 287.8 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 189.2 MB in the beginning and 122.7 MB in the end (delta: 66.5 MB). Peak memory consumption was 1.9 GB. 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...