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_spec7_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:05:20,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:05:20,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:05:20,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:05:20,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:05:20,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:05:20,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:05:20,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:05:20,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:05:20,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:05:20,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:05:20,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:05:20,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:05:20,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:05:20,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:05:20,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:05:20,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:05:20,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:05:20,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:05:20,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:05:20,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:05:20,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:05:20,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:05:20,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:05:20,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:05:20,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:05:20,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:05:20,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:05:20,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:05:20,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:05:20,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:05:20,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:05:20,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:05:20,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:05:20,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:05:20,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:05:20,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:05:20,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:05:20,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:05:20,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:05:20,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:05:20,407 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 15:05:20,441 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:05:20,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:05:20,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:05:20,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:05:20,447 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:05:20,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:05:20,448 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:05:20,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:05:20,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:05:20,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:05:20,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:05:20,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:05:20,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:05:20,449 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:05:20,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:05:20,450 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:05:20,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:05:20,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:05:20,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:05:20,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:05:20,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:05:20,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:05:20,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:05:20,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:05:20,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:05:20,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:05:20,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:05:20,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:05:20,453 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 15:05:20,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:05:20,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:05:20,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:05:20,766 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:05:20,767 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:05:20,767 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-07 15:05:20,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d73852d89/4e1443395fa84f10a6e05c73cf2dc8ce/FLAG75bd2ce31 [2019-10-07 15:05:21,462 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:05:21,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-07 15:05:21,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d73852d89/4e1443395fa84f10a6e05c73cf2dc8ce/FLAG75bd2ce31 [2019-10-07 15:05:21,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d73852d89/4e1443395fa84f10a6e05c73cf2dc8ce [2019-10-07 15:05:21,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:05:21,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:05:21,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:05:21,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:05:21,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:05:21,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:05:21" (1/1) ... [2019-10-07 15:05:21,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea49d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:21, skipping insertion in model container [2019-10-07 15:05:21,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:05:21" (1/1) ... [2019-10-07 15:05:21,723 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:05:21,793 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:05:22,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:05:22,669 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:05:22,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:05:22,970 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:05:22,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22 WrapperNode [2019-10-07 15:05:22,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:05:22,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:05:22,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:05:22,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:05:22,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22" (1/1) ... [2019-10-07 15:05:22,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22" (1/1) ... [2019-10-07 15:05:23,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22" (1/1) ... [2019-10-07 15:05:23,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22" (1/1) ... [2019-10-07 15:05:23,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22" (1/1) ... [2019-10-07 15:05:23,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22" (1/1) ... [2019-10-07 15:05:23,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22" (1/1) ... [2019-10-07 15:05:23,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:05:23,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:05:23,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:05:23,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:05:23,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:05:23,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:05:23,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:05:23,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:05:23,298 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:05:23,298 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 15:05:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 15:05:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:05:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:05:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:05:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:05:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:05:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:05:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:05:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:05:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:05:23,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:05:23,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:05:23,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-07 15:05:23,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:05:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:05:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:05:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:05:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:05:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:05:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:05:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:05:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:05:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:05:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:05:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:05:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:05:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:05:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:05:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:05:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:05:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:05:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:05:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:05:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:05:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:05:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:05:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:05:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:05:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:05:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:05:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:05:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:05:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:05:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:05:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:05:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:05:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:05:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:05:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:05:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:05:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:05:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:05:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:05:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:05:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:05:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:05:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:05:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:05:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:05:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:05:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:05:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:05:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:05:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:05:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:05:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:05:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:05:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:05:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:05:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:05:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:05:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:05:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:05:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:05:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:05:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:05:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:05:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:05:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:05:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:05:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:05:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:05:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:05:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:05:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:05:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:05:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:05:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:05:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:05:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 15:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 15:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:05:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:05:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:05:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-07 15:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:05:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:05:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:05:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:05:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:05:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:05:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:05:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:05:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:05:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:05:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:05:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:05:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:05:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:05:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:05:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:05:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:05:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:05:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:05:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:05:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:05:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:05:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:05:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:05:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:05:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:05:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:05:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:05:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:05:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:05:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:05:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:05:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:05:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:05:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:05:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:05:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:05:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:05:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:05:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:05:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:05:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:05:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:05:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:05:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:05:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:05:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:05:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:05:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:05:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:05:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:05:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:05:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:05:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:05:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:05:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:05:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:05:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:05:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:05:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:05:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:05:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:05:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:05:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:05:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:05:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:05:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:05:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:05:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:05:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:05:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:05:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:05:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:05:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:05:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:05:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:05:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:05:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:05:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:05:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:05:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:05:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:05:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:05:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:05:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:05:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:05:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:05:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:05:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:05:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:05:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:05:27,833 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:05:27,833 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:05:27,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:05:27 BoogieIcfgContainer [2019-10-07 15:05:27,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:05:27,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:05:27,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:05:27,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:05:27,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:05:21" (1/3) ... [2019-10-07 15:05:27,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc0cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:05:27, skipping insertion in model container [2019-10-07 15:05:27,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:22" (2/3) ... [2019-10-07 15:05:27,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc0cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:05:27, skipping insertion in model container [2019-10-07 15:05:27,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:05:27" (3/3) ... [2019-10-07 15:05:27,850 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product33.cil.c [2019-10-07 15:05:27,861 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:05:27,870 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:05:27,882 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:05:27,914 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:05:27,914 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:05:27,914 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:05:27,914 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:05:27,915 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:05:27,915 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:05:27,915 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:05:27,915 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:05:27,945 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states. [2019-10-07 15:05:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 15:05:27,965 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:05:27,968 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] [2019-10-07 15:05:27,971 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:05:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:05:27,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1428529733, now seen corresponding path program 1 times [2019-10-07 15:05:27,987 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:05:27,987 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:27,988 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:27,988 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:27,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:05:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:05:28,686 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 15:05:28,686 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:28,688 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:05:28,688 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:05:28,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:05:28,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:05:28,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:05:28,711 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 2 states. [2019-10-07 15:05:28,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:05:28,835 INFO L93 Difference]: Finished difference Result 661 states and 784 transitions. [2019-10-07 15:05:28,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:05:28,842 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-07 15:05:28,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:05:28,883 INFO L225 Difference]: With dead ends: 661 [2019-10-07 15:05:28,884 INFO L226 Difference]: Without dead ends: 409 [2019-10-07 15:05:28,894 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 15:05:28,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-10-07 15:05:29,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2019-10-07 15:05:29,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-10-07 15:05:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 482 transitions. [2019-10-07 15:05:29,027 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 482 transitions. Word has length 145 [2019-10-07 15:05:29,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:05:29,031 INFO L462 AbstractCegarLoop]: Abstraction has 409 states and 482 transitions. [2019-10-07 15:05:29,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:05:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 482 transitions. [2019-10-07 15:05:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 15:05:29,045 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:05:29,045 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] [2019-10-07 15:05:29,045 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:05:29,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:05:29,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1941277862, now seen corresponding path program 1 times [2019-10-07 15:05:29,046 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:05:29,046 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:29,047 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:29,047 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:05:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:05:29,314 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 15:05:29,315 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:29,315 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:05:29,316 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:05:29,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:05:29,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:05:29,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:05:29,322 INFO L87 Difference]: Start difference. First operand 409 states and 482 transitions. Second operand 3 states. [2019-10-07 15:05:29,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:05:29,391 INFO L93 Difference]: Finished difference Result 646 states and 752 transitions. [2019-10-07 15:05:29,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:05:29,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-07 15:05:29,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:05:29,404 INFO L225 Difference]: With dead ends: 646 [2019-10-07 15:05:29,405 INFO L226 Difference]: Without dead ends: 411 [2019-10-07 15:05:29,407 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 15:05:29,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2019-10-07 15:05:29,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2019-10-07 15:05:29,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2019-10-07 15:05:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 484 transitions. [2019-10-07 15:05:29,441 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 484 transitions. Word has length 146 [2019-10-07 15:05:29,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:05:29,442 INFO L462 AbstractCegarLoop]: Abstraction has 411 states and 484 transitions. [2019-10-07 15:05:29,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:05:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 484 transitions. [2019-10-07 15:05:29,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-07 15:05:29,448 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:05:29,448 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:05:29,449 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:05:29,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:05:29,449 INFO L82 PathProgramCache]: Analyzing trace with hash -2009493726, now seen corresponding path program 1 times [2019-10-07 15:05:29,449 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:05:29,450 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:29,450 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:29,450 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:29,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:05:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:05:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:05:29,787 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:29,788 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:05:29,788 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:05:29,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:05:29,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:05:29,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:05:29,792 INFO L87 Difference]: Start difference. First operand 411 states and 484 transitions. Second operand 3 states. [2019-10-07 15:05:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:05:29,843 INFO L93 Difference]: Finished difference Result 806 states and 978 transitions. [2019-10-07 15:05:29,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:05:29,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-07 15:05:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:05:29,848 INFO L225 Difference]: With dead ends: 806 [2019-10-07 15:05:29,848 INFO L226 Difference]: Without dead ends: 453 [2019-10-07 15:05:29,850 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 15:05:29,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-10-07 15:05:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 452. [2019-10-07 15:05:29,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-10-07 15:05:29,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 555 transitions. [2019-10-07 15:05:29,872 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 555 transitions. Word has length 158 [2019-10-07 15:05:29,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:05:29,873 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 555 transitions. [2019-10-07 15:05:29,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:05:29,873 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 555 transitions. [2019-10-07 15:05:29,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-07 15:05:29,876 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:05:29,876 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:05:29,877 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:05:29,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:05:29,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1491507317, now seen corresponding path program 1 times [2019-10-07 15:05:29,878 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:05:29,878 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:29,878 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:29,878 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:29,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:05:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:05:30,758 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:05:30,758 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:30,759 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:05:30,759 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 15:05:30,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 15:05:30,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 15:05:30,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:05:30,762 INFO L87 Difference]: Start difference. First operand 452 states and 555 transitions. Second operand 28 states. [2019-10-07 15:05:39,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:05:39,778 INFO L93 Difference]: Finished difference Result 978 states and 1192 transitions. [2019-10-07 15:05:39,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 15:05:39,779 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 159 [2019-10-07 15:05:39,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:05:39,787 INFO L225 Difference]: With dead ends: 978 [2019-10-07 15:05:39,788 INFO L226 Difference]: Without dead ends: 721 [2019-10-07 15:05:39,790 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-07 15:05:39,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2019-10-07 15:05:39,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 709. [2019-10-07 15:05:39,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-10-07 15:05:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 861 transitions. [2019-10-07 15:05:39,864 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 861 transitions. Word has length 159 [2019-10-07 15:05:39,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:05:39,870 INFO L462 AbstractCegarLoop]: Abstraction has 709 states and 861 transitions. [2019-10-07 15:05:39,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 15:05:39,870 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 861 transitions. [2019-10-07 15:05:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 15:05:39,876 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:05:39,877 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:05:39,877 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:05:39,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:05:39,878 INFO L82 PathProgramCache]: Analyzing trace with hash -682911635, now seen corresponding path program 1 times [2019-10-07 15:05:39,878 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:05:39,878 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:39,878 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:39,878 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:39,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:05:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:05:40,207 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:05:40,208 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:40,208 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:05:40,208 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 15:05:40,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 15:05:40,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 15:05:40,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:05:40,211 INFO L87 Difference]: Start difference. First operand 709 states and 861 transitions. Second operand 10 states. [2019-10-07 15:05:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:05:40,278 INFO L93 Difference]: Finished difference Result 718 states and 872 transitions. [2019-10-07 15:05:40,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:05:40,279 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2019-10-07 15:05:40,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:05:40,284 INFO L225 Difference]: With dead ends: 718 [2019-10-07 15:05:40,285 INFO L226 Difference]: Without dead ends: 713 [2019-10-07 15:05:40,285 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:05:40,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-10-07 15:05:40,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 713. [2019-10-07 15:05:40,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2019-10-07 15:05:40,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 865 transitions. [2019-10-07 15:05:40,319 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 865 transitions. Word has length 163 [2019-10-07 15:05:40,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:05:40,320 INFO L462 AbstractCegarLoop]: Abstraction has 713 states and 865 transitions. [2019-10-07 15:05:40,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 15:05:40,321 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 865 transitions. [2019-10-07 15:05:40,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 15:05:40,323 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:05:40,324 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:05:40,324 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:05:40,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:05:40,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1922706522, now seen corresponding path program 1 times [2019-10-07 15:05:40,325 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:05:40,325 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:40,325 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:40,325 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:40,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:05:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:05:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:05:40,734 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:40,734 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:05:40,735 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:05:40,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:05:40,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:05:40,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:05:40,736 INFO L87 Difference]: Start difference. First operand 713 states and 865 transitions. Second operand 14 states. [2019-10-07 15:05:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:05:44,429 INFO L93 Difference]: Finished difference Result 1543 states and 1848 transitions. [2019-10-07 15:05:44,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:05:44,429 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2019-10-07 15:05:44,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:05:44,438 INFO L225 Difference]: With dead ends: 1543 [2019-10-07 15:05:44,438 INFO L226 Difference]: Without dead ends: 1309 [2019-10-07 15:05:44,440 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 15:05:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2019-10-07 15:05:44,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1264. [2019-10-07 15:05:44,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1264 states. [2019-10-07 15:05:44,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1518 transitions. [2019-10-07 15:05:44,523 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1518 transitions. Word has length 165 [2019-10-07 15:05:44,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:05:44,523 INFO L462 AbstractCegarLoop]: Abstraction has 1264 states and 1518 transitions. [2019-10-07 15:05:44,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:05:44,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1518 transitions. [2019-10-07 15:05:44,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-07 15:05:44,527 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:05:44,528 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:05:44,528 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:05:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:05:44,528 INFO L82 PathProgramCache]: Analyzing trace with hash 621858291, now seen corresponding path program 1 times [2019-10-07 15:05:44,529 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:05:44,529 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:44,529 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:44,529 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:44,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:05:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:05:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:05:44,675 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:44,676 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:05:44,676 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:05:44,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:05:44,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:05:44,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:05:44,677 INFO L87 Difference]: Start difference. First operand 1264 states and 1518 transitions. Second operand 3 states. [2019-10-07 15:05:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:05:44,766 INFO L93 Difference]: Finished difference Result 2582 states and 3169 transitions. [2019-10-07 15:05:44,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:05:44,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-07 15:05:44,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:05:44,778 INFO L225 Difference]: With dead ends: 2582 [2019-10-07 15:05:44,779 INFO L226 Difference]: Without dead ends: 1376 [2019-10-07 15:05:44,784 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 15:05:44,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2019-10-07 15:05:44,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1374. [2019-10-07 15:05:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1374 states. [2019-10-07 15:05:44,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1709 transitions. [2019-10-07 15:05:44,881 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1709 transitions. Word has length 180 [2019-10-07 15:05:44,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:05:44,882 INFO L462 AbstractCegarLoop]: Abstraction has 1374 states and 1709 transitions. [2019-10-07 15:05:44,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:05:44,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1709 transitions. [2019-10-07 15:05:44,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 15:05:44,886 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:05:44,887 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:05:44,887 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:05:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:05:44,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1182325413, now seen corresponding path program 1 times [2019-10-07 15:05:44,888 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:05:44,888 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:44,888 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:44,888 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:05:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:05:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:05:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 15:05:45,457 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:05:45,457 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:05:45,457 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 15:05:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:05:46,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:05:46,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:05:46,376 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:05:46,376 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:05:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:05:46,657 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:05:46,709 INFO L162 IcfgInterpreter]: Started Sifa with 162 locations of interest [2019-10-07 15:05:46,709 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:05:46,723 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:05:46,732 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:05:46,733 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:06:32,968 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:06:36,741 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 304 DAG size of output: 247 [2019-10-07 15:06:37,085 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 15:06:37,501 WARN L191 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 15:06:37,834 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 15:06:38,056 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 15:06:38,750 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 15:06:39,527 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 15:06:40,194 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 15:06:40,417 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 15:06:41,062 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 15:06:42,467 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1011 DAG size of output: 1009 [2019-10-07 15:06:43,067 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 15:06:43,216 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 15:06:43,844 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 15:06:44,469 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 15:06:45,042 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 15:06:45,157 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 15:06:45,784 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 15:06:45,808 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 553 for LOIs [2019-10-07 15:06:46,136 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:46,239 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:46,358 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 15:06:46,815 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 936 [2019-10-07 15:06:46,817 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1055 for LOIs [2019-10-07 15:06:47,417 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:06:47,989 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:06:48,200 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:06:49,090 WARN L191 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:06:49,676 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:06:50,284 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:06:50,491 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:06:51,412 WARN L191 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:06:52,076 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:06:52,655 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:06:52,865 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:06:53,712 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:06:54,683 WARN L191 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 1199 DAG size of output: 1055 [2019-10-07 15:06:55,278 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:06:55,728 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:06:56,575 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:06:57,186 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:06:57,796 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:06:58,005 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:06:58,870 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:06:59,456 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:00,033 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:00,243 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:01,096 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:01,679 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:02,285 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:02,497 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:03,339 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:03,916 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:04,495 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:04,700 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:05,547 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:06,140 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:06,713 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:06,917 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:07,752 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:08,322 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:08,896 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:09,096 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:09,962 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:10,537 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:11,104 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:11,302 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:12,122 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:12,689 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:13,253 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:13,450 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:14,275 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:14,837 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:15,397 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1055 [2019-10-07 15:07:15,597 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:16,420 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:17,290 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:18,116 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:18,395 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:19,220 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:20,745 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1197 [2019-10-07 15:07:21,582 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:21,792 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:22,627 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:23,450 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:24,279 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:24,481 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:25,311 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:26,203 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1199 [2019-10-07 15:07:27,030 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1199 [2019-10-07 15:07:27,238 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:07:28,081 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:07:29,610 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1201 [2019-10-07 15:07:30,444 WARN L191 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:07:30,661 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:07:31,487 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:07:32,909 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1199 [2019-10-07 15:07:33,739 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1199 [2019-10-07 15:07:33,940 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:07:34,770 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:07:35,900 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1199 [2019-10-07 15:07:36,728 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1199 [2019-10-07 15:07:36,936 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:07:37,777 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:07:38,625 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:07:39,461 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:07:39,674 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:07:40,508 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 15:07:42,243 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1197 [2019-10-07 15:07:43,068 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:43,289 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:44,109 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:45,624 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1197 [2019-10-07 15:07:46,456 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:46,686 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:47,512 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:48,349 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:49,181 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:49,382 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:50,208 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:52,054 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1197 [2019-10-07 15:07:52,888 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:53,095 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:53,932 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:55,445 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1197 [2019-10-07 15:07:56,267 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:56,476 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:07:57,314 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:58,145 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:58,989 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:07:59,191 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 585 [2019-10-07 15:08:00,017 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:08:00,881 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:08:01,728 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:08:01,945 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:08:02,795 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:08:04,335 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1201 [2019-10-07 15:08:05,182 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:08:05,394 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:08:06,248 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:08:07,790 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1201 [2019-10-07 15:08:08,645 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:08:08,861 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:08:09,720 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:08:11,274 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1208 DAG size of output: 1201 [2019-10-07 15:08:12,124 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:08:12,375 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:08:13,225 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1201 [2019-10-07 15:08:14,781 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1210 DAG size of output: 1203 [2019-10-07 15:08:15,641 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 15:08:15,853 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:08:16,710 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 15:08:16,963 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:08:16,964 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 15:08:16,972 INFO L168 Benchmark]: Toolchain (without parser) took 175271.30 ms. Allocated memory was 145.8 MB in the beginning and 965.7 MB in the end (delta: 820.0 MB). Free memory was 101.4 MB in the beginning and 518.2 MB in the end (delta: -416.8 MB). Peak memory consumption was 403.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:08:16,973 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:08:16,974 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1264.46 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 101.2 MB in the beginning and 133.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:08:16,974 INFO L168 Benchmark]: Boogie Preprocessor took 253.58 ms. Allocated memory is still 204.5 MB. Free memory was 133.2 MB in the beginning and 123.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:08:16,975 INFO L168 Benchmark]: RCFGBuilder took 4611.16 ms. Allocated memory was 204.5 MB in the beginning and 298.3 MB in the end (delta: 93.8 MB). Free memory was 123.6 MB in the beginning and 241.8 MB in the end (delta: -118.2 MB). Peak memory consumption was 140.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:08:16,976 INFO L168 Benchmark]: TraceAbstraction took 169131.85 ms. Allocated memory was 298.3 MB in the beginning and 965.7 MB in the end (delta: 667.4 MB). Free memory was 241.8 MB in the beginning and 518.2 MB in the end (delta: -276.5 MB). Peak memory consumption was 391.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:08:16,979 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1264.46 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 101.2 MB in the beginning and 133.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 253.58 ms. Allocated memory is still 204.5 MB. Free memory was 133.2 MB in the beginning and 123.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4611.16 ms. Allocated memory was 204.5 MB in the beginning and 298.3 MB in the end (delta: 93.8 MB). Free memory was 123.6 MB in the beginning and 241.8 MB in the end (delta: -118.2 MB). Peak memory consumption was 140.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 169131.85 ms. Allocated memory was 298.3 MB in the beginning and 965.7 MB in the end (delta: 667.4 MB). Free memory was 241.8 MB in the beginning and 518.2 MB in the end (delta: -276.5 MB). Peak memory consumption was 391.0 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...