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_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:01:16,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:01:16,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:01:16,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:01:16,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:01:16,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:01:16,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:01:16,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:01:16,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:01:16,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:01:16,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:01:16,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:01:16,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:01:16,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:01:16,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:01:16,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:01:16,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:01:16,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:01:16,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:01:16,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:01:16,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:01:16,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:01:16,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:01:16,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:01:16,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:01:16,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:01:16,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:01:16,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:01:16,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:01:16,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:01:16,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:01:16,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:01:16,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:01:16,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:01:16,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:01:16,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:01:16,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:01:16,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:01:16,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:01:16,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:01:16,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:01:16,476 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 15:01:16,510 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:01:16,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:01:16,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:01:16,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:01:16,513 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:01:16,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:01:16,514 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:01:16,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:01:16,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:01:16,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:01:16,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:01:16,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:01:16,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:01:16,516 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:01:16,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:01:16,517 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:01:16,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:01:16,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:01:16,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:01:16,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:01:16,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:01:16,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:01:16,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:01:16,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:01:16,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:01:16,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:01:16,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:01:16,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:01:16,520 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 15:01:16,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:01:16,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:01:16,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:01:16,860 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:01:16,860 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:01:16,861 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-07 15:01:16,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/672a3506d/19edcaaec76e403f853016c956504104/FLAGa4c39ceb9 [2019-10-07 15:01:17,635 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:01:17,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-07 15:01:17,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/672a3506d/19edcaaec76e403f853016c956504104/FLAGa4c39ceb9 [2019-10-07 15:01:17,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/672a3506d/19edcaaec76e403f853016c956504104 [2019-10-07 15:01:17,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:01:17,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:01:17,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:01:17,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:01:17,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:01:17,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:01:17" (1/1) ... [2019-10-07 15:01:17,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117b6aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:17, skipping insertion in model container [2019-10-07 15:01:17,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:01:17" (1/1) ... [2019-10-07 15:01:17,821 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:01:17,894 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:01:18,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:01:18,842 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:01:18,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:01:19,067 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:01:19,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19 WrapperNode [2019-10-07 15:01:19,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:01:19,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:01:19,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:01:19,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:01:19,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19" (1/1) ... [2019-10-07 15:01:19,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19" (1/1) ... [2019-10-07 15:01:19,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19" (1/1) ... [2019-10-07 15:01:19,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19" (1/1) ... [2019-10-07 15:01:19,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19" (1/1) ... [2019-10-07 15:01:19,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19" (1/1) ... [2019-10-07 15:01:19,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19" (1/1) ... [2019-10-07 15:01:19,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:01:19,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:01:19,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:01:19,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:01:19,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19" (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 15:01:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:01:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:01:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:01:19,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:01:19,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:01:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:01:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:01:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:01:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:01:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:01:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:01:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:01:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:01:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:01:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:01:19,389 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:01:19,389 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:01:19,389 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:01:19,389 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:01:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:01:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:01:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:01:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:01:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:01:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:01:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:01:19,391 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:01:19,391 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:01:19,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:01:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:01:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:01:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:01:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:01:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:01:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:01:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:01:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:01:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:01:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:01:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:01:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:01:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:01:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:01:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:01:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:01:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:01:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:01:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:01:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:01:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:01:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:01:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:01:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:01:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:01:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:01:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:01:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:01:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:01:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:01:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:01:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:01:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:01:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:01:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:01:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:01:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:01:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:01:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:01:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:01:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:01:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:01:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:01:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:01:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:01:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:01:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:01:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:01:19,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:01:19,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:01:19,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:01:19,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:01:19,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:01:19,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:01:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:01:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:01:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:01:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:01:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:01:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:01:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:01:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:01:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:01:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:01:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:01:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:01:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:01:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:01:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:01:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-07 15:01:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:01:19,408 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:01:19,408 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:01:19,408 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:01:19,408 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:01:19,408 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:01:19,408 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:01:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:01:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:01:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:01:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:01:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:01:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:01:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:01:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:01:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:01:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:01:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:01:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:01:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:01:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:01:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:01:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:01:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:01:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:01:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:01:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:01:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:01:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:01:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:01:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:01:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:01:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:01:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:01:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:01:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:01:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:01:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:01:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:01:19,433 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:01:19,433 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:01:19,433 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:01:19,434 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:01:19,434 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:01:19,434 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:01:19,434 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:01:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:01:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:01:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:01:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:01:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:01:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:01:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:01:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:01:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:01:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:01:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:01:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:01:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:01:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:01:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:01:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:01:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:01:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:01:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:01:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:01:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:01:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:01:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:01:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:01:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:01:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:01:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:01:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:01:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:01:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:01:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:01:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:01:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:01:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:01:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:01:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:01:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:01:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:01:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:01:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:01:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:01:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:01:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:01:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:01:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:01:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:01:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:01:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:01:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:01:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:01:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:01:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:01:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:01:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:01:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:01:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:01:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:01:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:01:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:01:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:01:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:01:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:01:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:01:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:01:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:01:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:01:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:01:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:01:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:01:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:01:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:01:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:01:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:01:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:01:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:01:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:01:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:01:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:01:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:01:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:01:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:01:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:01:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:01:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:01:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:01:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:01:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:01:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:01:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:01:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:01:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:01:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-07 15:01:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:01:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:01:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:01:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:01:24,425 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:01:24,426 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:01:24,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:01:24 BoogieIcfgContainer [2019-10-07 15:01:24,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:01:24,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:01:24,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:01:24,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:01:24,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:01:17" (1/3) ... [2019-10-07 15:01:24,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7261c0f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:01:24, skipping insertion in model container [2019-10-07 15:01:24,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:01:19" (2/3) ... [2019-10-07 15:01:24,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7261c0f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:01:24, skipping insertion in model container [2019-10-07 15:01:24,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:01:24" (3/3) ... [2019-10-07 15:01:24,435 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2019-10-07 15:01:24,445 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:01:24,457 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:01:24,468 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:01:24,499 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:01:24,499 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:01:24,499 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:01:24,499 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:01:24,499 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:01:24,500 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:01:24,500 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:01:24,500 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:01:24,528 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states. [2019-10-07 15:01:24,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 15:01:24,547 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:24,549 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:24,551 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:24,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:24,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1454161030, now seen corresponding path program 1 times [2019-10-07 15:01:24,565 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:24,565 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:24,565 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:24,565 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:24,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:25,249 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:25,249 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:25,249 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:01:25,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:01:25,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:01:25,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:01:25,272 INFO L87 Difference]: Start difference. First operand 424 states. Second operand 2 states. [2019-10-07 15:01:25,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:25,345 INFO L93 Difference]: Finished difference Result 623 states and 745 transitions. [2019-10-07 15:01:25,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:01:25,347 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-07 15:01:25,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:25,367 INFO L225 Difference]: With dead ends: 623 [2019-10-07 15:01:25,367 INFO L226 Difference]: Without dead ends: 397 [2019-10-07 15:01:25,374 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 15:01:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-10-07 15:01:25,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2019-10-07 15:01:25,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-07 15:01:25,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 470 transitions. [2019-10-07 15:01:25,464 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 470 transitions. Word has length 143 [2019-10-07 15:01:25,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:25,467 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 470 transitions. [2019-10-07 15:01:25,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:01:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 470 transitions. [2019-10-07 15:01:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-07 15:01:25,480 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:25,480 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:25,481 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:25,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:25,481 INFO L82 PathProgramCache]: Analyzing trace with hash -960052196, now seen corresponding path program 1 times [2019-10-07 15:01:25,482 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:25,482 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:25,482 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:25,482 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:25,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:25,854 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:25,854 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:25,855 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:01:25,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:01:25,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:01:25,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:01:25,857 INFO L87 Difference]: Start difference. First operand 397 states and 470 transitions. Second operand 3 states. [2019-10-07 15:01:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:25,924 INFO L93 Difference]: Finished difference Result 608 states and 713 transitions. [2019-10-07 15:01:25,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:01:25,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-07 15:01:25,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:25,935 INFO L225 Difference]: With dead ends: 608 [2019-10-07 15:01:25,935 INFO L226 Difference]: Without dead ends: 399 [2019-10-07 15:01:25,939 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 15:01:25,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-07 15:01:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-10-07 15:01:25,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-07 15:01:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-10-07 15:01:25,992 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 144 [2019-10-07 15:01:25,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:25,993 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-10-07 15:01:25,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:01:25,993 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-10-07 15:01:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 15:01:25,999 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:26,001 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:26,001 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:26,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1019330553, now seen corresponding path program 1 times [2019-10-07 15:01:26,004 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:26,004 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:26,004 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:26,004 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:26,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:26,267 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:26,268 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:26,268 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:26,268 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:01:26,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:01:26,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:01:26,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:01:26,272 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-10-07 15:01:26,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:26,346 INFO L93 Difference]: Finished difference Result 784 states and 957 transitions. [2019-10-07 15:01:26,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:01:26,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-07 15:01:26,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:26,353 INFO L225 Difference]: With dead ends: 784 [2019-10-07 15:01:26,353 INFO L226 Difference]: Without dead ends: 443 [2019-10-07 15:01:26,355 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 15:01:26,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-07 15:01:26,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-10-07 15:01:26,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-07 15:01:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 546 transitions. [2019-10-07 15:01:26,402 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 546 transitions. Word has length 156 [2019-10-07 15:01:26,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:26,403 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 546 transitions. [2019-10-07 15:01:26,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:01:26,403 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 546 transitions. [2019-10-07 15:01:26,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-07 15:01:26,411 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:26,411 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:26,412 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:26,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:26,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1615276318, now seen corresponding path program 1 times [2019-10-07 15:01:26,413 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:26,413 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:26,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:26,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:26,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:27,258 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 15:01:27,259 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:27,259 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:27,259 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-07 15:01:27,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-07 15:01:27,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-07 15:01:27,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-07 15:01:27,261 INFO L87 Difference]: Start difference. First operand 442 states and 546 transitions. Second operand 24 states. [2019-10-07 15:01:36,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:36,242 INFO L93 Difference]: Finished difference Result 1204 states and 1482 transitions. [2019-10-07 15:01:36,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 15:01:36,243 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 157 [2019-10-07 15:01:36,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:36,264 INFO L225 Difference]: With dead ends: 1204 [2019-10-07 15:01:36,264 INFO L226 Difference]: Without dead ends: 1003 [2019-10-07 15:01:36,268 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-10-07 15:01:36,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-10-07 15:01:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 990. [2019-10-07 15:01:36,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2019-10-07 15:01:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1204 transitions. [2019-10-07 15:01:36,355 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1204 transitions. Word has length 157 [2019-10-07 15:01:36,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:36,357 INFO L462 AbstractCegarLoop]: Abstraction has 990 states and 1204 transitions. [2019-10-07 15:01:36,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-07 15:01:36,357 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1204 transitions. [2019-10-07 15:01:36,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 15:01:36,363 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:36,363 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:36,364 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:36,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:36,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1771186363, now seen corresponding path program 1 times [2019-10-07 15:01:36,365 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:36,365 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:36,365 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:36,365 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:36,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:36,798 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 15:01:36,798 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:36,799 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:36,799 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:01:36,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:01:36,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:01:36,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:01:36,803 INFO L87 Difference]: Start difference. First operand 990 states and 1204 transitions. Second operand 14 states. [2019-10-07 15:01:41,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:41,250 INFO L93 Difference]: Finished difference Result 2265 states and 2758 transitions. [2019-10-07 15:01:41,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:01:41,250 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 163 [2019-10-07 15:01:41,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:41,263 INFO L225 Difference]: With dead ends: 2265 [2019-10-07 15:01:41,264 INFO L226 Difference]: Without dead ends: 1884 [2019-10-07 15:01:41,266 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:01:41,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2019-10-07 15:01:41,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1836. [2019-10-07 15:01:41,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2019-10-07 15:01:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2223 transitions. [2019-10-07 15:01:41,383 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2223 transitions. Word has length 163 [2019-10-07 15:01:41,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:41,384 INFO L462 AbstractCegarLoop]: Abstraction has 1836 states and 2223 transitions. [2019-10-07 15:01:41,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:01:41,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2223 transitions. [2019-10-07 15:01:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-07 15:01:41,389 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:41,389 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:41,389 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:41,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:41,390 INFO L82 PathProgramCache]: Analyzing trace with hash -720526917, now seen corresponding path program 1 times [2019-10-07 15:01:41,390 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:41,390 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:41,390 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:41,390 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:41,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:41,531 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:41,531 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:41,531 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:01:41,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:01:41,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:01:41,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:01:41,533 INFO L87 Difference]: Start difference. First operand 1836 states and 2223 transitions. Second operand 3 states. [2019-10-07 15:01:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:41,634 INFO L93 Difference]: Finished difference Result 3732 states and 4588 transitions. [2019-10-07 15:01:41,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:01:41,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-07 15:01:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:41,648 INFO L225 Difference]: With dead ends: 3732 [2019-10-07 15:01:41,648 INFO L226 Difference]: Without dead ends: 1954 [2019-10-07 15:01:41,655 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 15:01:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2019-10-07 15:01:41,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1952. [2019-10-07 15:01:41,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1952 states. [2019-10-07 15:01:41,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2423 transitions. [2019-10-07 15:01:41,775 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2423 transitions. Word has length 178 [2019-10-07 15:01:41,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:41,776 INFO L462 AbstractCegarLoop]: Abstraction has 1952 states and 2423 transitions. [2019-10-07 15:01:41,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:01:41,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2423 transitions. [2019-10-07 15:01:41,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 15:01:41,781 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:41,782 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:41,782 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:41,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:41,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1146924668, now seen corresponding path program 1 times [2019-10-07 15:01:41,783 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:41,783 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:41,783 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:41,783 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:41,943 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:41,943 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:41,943 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:01:41,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:01:41,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:01:41,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:01:41,945 INFO L87 Difference]: Start difference. First operand 1952 states and 2423 transitions. Second operand 3 states. [2019-10-07 15:01:42,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:42,056 INFO L93 Difference]: Finished difference Result 4071 states and 5173 transitions. [2019-10-07 15:01:42,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:01:42,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-07 15:01:42,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:42,075 INFO L225 Difference]: With dead ends: 4071 [2019-10-07 15:01:42,075 INFO L226 Difference]: Without dead ends: 2177 [2019-10-07 15:01:42,084 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 15:01:42,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2019-10-07 15:01:42,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 2175. [2019-10-07 15:01:42,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2175 states. [2019-10-07 15:01:42,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 2805 transitions. [2019-10-07 15:01:42,299 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 2805 transitions. Word has length 179 [2019-10-07 15:01:42,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:42,299 INFO L462 AbstractCegarLoop]: Abstraction has 2175 states and 2805 transitions. [2019-10-07 15:01:42,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:01:42,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 2805 transitions. [2019-10-07 15:01:42,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-07 15:01:42,305 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:42,306 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:42,306 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:42,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:42,306 INFO L82 PathProgramCache]: Analyzing trace with hash 370854203, now seen corresponding path program 1 times [2019-10-07 15:01:42,307 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:42,307 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:42,307 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:42,307 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:42,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:42,699 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:42,699 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:42,699 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:01:42,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:01:42,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:01:42,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:01:42,702 INFO L87 Difference]: Start difference. First operand 2175 states and 2805 transitions. Second operand 12 states. [2019-10-07 15:01:47,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:47,914 INFO L93 Difference]: Finished difference Result 4552 states and 6039 transitions. [2019-10-07 15:01:47,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:01:47,915 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 180 [2019-10-07 15:01:47,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:47,936 INFO L225 Difference]: With dead ends: 4552 [2019-10-07 15:01:47,936 INFO L226 Difference]: Without dead ends: 3373 [2019-10-07 15:01:47,945 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:01:47,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2019-10-07 15:01:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 2610. [2019-10-07 15:01:48,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2610 states. [2019-10-07 15:01:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3550 transitions. [2019-10-07 15:01:48,142 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3550 transitions. Word has length 180 [2019-10-07 15:01:48,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:48,144 INFO L462 AbstractCegarLoop]: Abstraction has 2610 states and 3550 transitions. [2019-10-07 15:01:48,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:01:48,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3550 transitions. [2019-10-07 15:01:48,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 15:01:48,153 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:48,154 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:48,154 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:48,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:48,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1471678325, now seen corresponding path program 1 times [2019-10-07 15:01:48,155 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:48,155 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:48,155 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:48,156 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:48,344 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:48,344 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:48,344 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:01:48,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:01:48,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:01:48,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:01:48,346 INFO L87 Difference]: Start difference. First operand 2610 states and 3550 transitions. Second operand 3 states. [2019-10-07 15:01:48,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:48,484 INFO L93 Difference]: Finished difference Result 5467 states and 7592 transitions. [2019-10-07 15:01:48,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:01:48,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-07 15:01:48,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:48,505 INFO L225 Difference]: With dead ends: 5467 [2019-10-07 15:01:48,505 INFO L226 Difference]: Without dead ends: 2919 [2019-10-07 15:01:48,515 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 15:01:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2019-10-07 15:01:48,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2918. [2019-10-07 15:01:48,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2918 states. [2019-10-07 15:01:48,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4086 transitions. [2019-10-07 15:01:48,710 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4086 transitions. Word has length 181 [2019-10-07 15:01:48,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:48,710 INFO L462 AbstractCegarLoop]: Abstraction has 2918 states and 4086 transitions. [2019-10-07 15:01:48,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:01:48,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4086 transitions. [2019-10-07 15:01:48,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-07 15:01:48,727 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:48,728 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:48,728 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:48,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:48,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1766899352, now seen corresponding path program 1 times [2019-10-07 15:01:48,729 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:48,729 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:48,729 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:48,729 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:48,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:49,160 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:49,161 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:01:49,161 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:01:49,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:01:49,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:01:49,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:01:49,163 INFO L87 Difference]: Start difference. First operand 2918 states and 4086 transitions. Second operand 12 states. [2019-10-07 15:01:54,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:01:54,611 INFO L93 Difference]: Finished difference Result 5434 states and 7555 transitions. [2019-10-07 15:01:54,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:01:54,612 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 183 [2019-10-07 15:01:54,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:01:54,641 INFO L225 Difference]: With dead ends: 5434 [2019-10-07 15:01:54,641 INFO L226 Difference]: Without dead ends: 3516 [2019-10-07 15:01:54,655 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:01:54,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3516 states. [2019-10-07 15:01:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3516 to 2753. [2019-10-07 15:01:54,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2753 states. [2019-10-07 15:01:54,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2753 states to 2753 states and 3787 transitions. [2019-10-07 15:01:54,935 INFO L78 Accepts]: Start accepts. Automaton has 2753 states and 3787 transitions. Word has length 183 [2019-10-07 15:01:54,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:01:54,935 INFO L462 AbstractCegarLoop]: Abstraction has 2753 states and 3787 transitions. [2019-10-07 15:01:54,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:01:54,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2753 states and 3787 transitions. [2019-10-07 15:01:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-07 15:01:54,949 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:01:54,949 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:01:54,950 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:01:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:01:54,950 INFO L82 PathProgramCache]: Analyzing trace with hash -798308520, now seen corresponding path program 1 times [2019-10-07 15:01:54,950 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:01:54,951 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:54,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:54,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:01:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:01:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:55,538 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:01:55,538 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:01:55,538 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 15:01:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:01:56,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 3030 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:01:56,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:01:56,475 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:56,475 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:01:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:01:56,776 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:01:56,834 INFO L162 IcfgInterpreter]: Started Sifa with 171 locations of interest [2019-10-07 15:01:56,834 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:01:56,847 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:01:56,866 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:01:56,867 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:03:13,380 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-10-07 15:03:18,130 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 341 DAG size of output: 277 [2019-10-07 15:03:18,618 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 759 [2019-10-07 15:03:19,049 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 759 [2019-10-07 15:03:19,437 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 759 [2019-10-07 15:03:19,673 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:03:20,396 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 15:03:21,091 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 15:03:21,800 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 15:03:21,957 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:03:22,651 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 15:03:23,949 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1064 DAG size of output: 1062 [2019-10-07 15:03:24,637 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 15:03:24,828 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:03:25,521 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 15:03:26,179 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 15:03:26,868 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 15:03:26,995 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:03:27,648 WARN L191 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 15:03:27,676 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 574 for LOIs [2019-10-07 15:03:28,134 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 676 [2019-10-07 15:03:28,252 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 676 [2019-10-07 15:03:28,381 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:03:28,863 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 979 [2019-10-07 15:03:28,865 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1119 for LOIs [2019-10-07 15:03:29,529 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:30,153 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:30,491 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:31,529 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:32,202 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:32,835 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:33,092 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:34,147 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:34,814 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:35,892 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:36,257 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:37,310 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:38,339 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 1316 DAG size of output: 1119 [2019-10-07 15:03:38,990 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:39,260 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:40,281 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:40,955 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:41,590 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:41,875 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:42,909 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:43,538 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:44,193 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:44,443 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:45,472 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:46,108 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:46,750 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:47,000 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:48,059 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:48,699 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:49,338 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:49,586 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:50,617 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:51,255 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:51,903 WARN L191 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:52,150 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:53,182 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:53,821 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:54,461 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:54,705 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:55,749 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:56,388 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:57,027 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:57,280 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:03:58,309 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:03:58,950 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:59,593 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:03:59,842 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:00,900 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:01,540 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:04:02,180 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1119 [2019-10-07 15:04:02,429 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:03,475 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:04,691 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:05,730 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:06,004 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:07,036 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:08,960 WARN L191 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1316 DAG size of output: 1314 [2019-10-07 15:04:09,988 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:10,251 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:11,280 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:12,300 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:13,353 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:13,602 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:14,641 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:15,727 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1316 [2019-10-07 15:04:16,758 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1316 [2019-10-07 15:04:17,017 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:04:18,054 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:04:19,136 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:04:20,169 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:04:20,430 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:04:21,458 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:04:23,314 WARN L191 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 1320 DAG size of output: 1316 [2019-10-07 15:04:24,359 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1316 [2019-10-07 15:04:24,610 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:04:25,652 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:04:26,692 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:04:27,738 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:04:28,028 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:04:29,066 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1323 [2019-10-07 15:04:30,117 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1325 [2019-10-07 15:04:31,172 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1325 [2019-10-07 15:04:31,433 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:04:32,494 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1325 [2019-10-07 15:04:35,342 WARN L191 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 1316 DAG size of output: 1314 [2019-10-07 15:04:36,364 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:36,643 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:37,670 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:40,611 WARN L191 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 1316 DAG size of output: 1314 [2019-10-07 15:04:41,654 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:41,911 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:42,969 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:44,005 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:45,041 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:45,290 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:46,326 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:48,235 WARN L191 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1316 DAG size of output: 1314 [2019-10-07 15:04:49,289 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:49,555 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:50,588 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:52,504 WARN L191 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 1316 DAG size of output: 1314 [2019-10-07 15:04:53,550 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:53,809 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:54,855 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:55,911 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:56,940 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:57,188 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 15:04:58,233 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1314 [2019-10-07 15:04:59,316 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:00,358 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:00,626 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:05:01,673 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:02,730 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:03,776 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:04,034 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:05:05,082 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:06,120 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:07,166 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:07,418 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:05:08,452 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:10,259 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1325 DAG size of output: 1316 [2019-10-07 15:05:11,320 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1316 [2019-10-07 15:05:11,584 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:05:12,636 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:14,555 WARN L191 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1327 DAG size of output: 1318 [2019-10-07 15:05:15,626 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:05:15,919 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 15:05:16,997 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1320 [2019-10-07 15:05:17,256 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:05:17,257 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 15:05:17,264 INFO L168 Benchmark]: Toolchain (without parser) took 239462.14 ms. Allocated memory was 139.5 MB in the beginning and 2.1 GB in the end (delta: 1.9 GB). Free memory was 101.9 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 106.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:05:17,265 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:05:17,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1263.77 ms. Allocated memory was 139.5 MB in the beginning and 207.1 MB in the end (delta: 67.6 MB). Free memory was 101.5 MB in the beginning and 137.6 MB in the end (delta: -36.1 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:05:17,266 INFO L168 Benchmark]: Boogie Preprocessor took 206.31 ms. Allocated memory is still 207.1 MB. Free memory was 137.6 MB in the beginning and 128.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:05:17,267 INFO L168 Benchmark]: RCFGBuilder took 5152.34 ms. Allocated memory was 207.1 MB in the beginning and 285.7 MB in the end (delta: 78.6 MB). Free memory was 127.8 MB in the beginning and 201.5 MB in the end (delta: -73.7 MB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:05:17,268 INFO L168 Benchmark]: TraceAbstraction took 232833.83 ms. Allocated memory was 285.7 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 201.5 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:05:17,271 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1263.77 ms. Allocated memory was 139.5 MB in the beginning and 207.1 MB in the end (delta: 67.6 MB). Free memory was 101.5 MB in the beginning and 137.6 MB in the end (delta: -36.1 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 206.31 ms. Allocated memory is still 207.1 MB. Free memory was 137.6 MB in the beginning and 128.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5152.34 ms. Allocated memory was 207.1 MB in the beginning and 285.7 MB in the end (delta: 78.6 MB). Free memory was 127.8 MB in the beginning and 201.5 MB in the end (delta: -73.7 MB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232833.83 ms. Allocated memory was 285.7 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 201.5 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...