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_spec4_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:56:53,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:56:53,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:56:53,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:56:53,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:56:53,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:56:53,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:56:53,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:56:53,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:56:53,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:56:53,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:56:53,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:56:53,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:56:53,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:56:53,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:56:53,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:56:53,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:56:53,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:56:53,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:56:53,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:56:53,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:56:53,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:56:53,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:56:53,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:56:53,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:56:53,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:56:53,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:56:53,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:56:53,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:56:53,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:56:53,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:56:53,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:56:53,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:56:53,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:56:53,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:56:53,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:56:53,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:56:53,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:56:53,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:56:53,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:56:53,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:56:53,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:56:53,568 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:56:53,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:56:53,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:56:53,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:56:53,573 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:56:53,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:56:53,574 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:56:53,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:56:53,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:56:53,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:56:53,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:56:53,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:56:53,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:56:53,577 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:56:53,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:56:53,577 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:56:53,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:56:53,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:56:53,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:56:53,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:56:53,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:56:53,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:56:53,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:56:53,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:56:53,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:56:53,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:56:53,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:56:53,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:56:53,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:56:53,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:56:53,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:56:53,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:56:53,954 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:56:53,955 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:56:53,956 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product23.cil.c [2019-10-07 14:56:54,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f6abce8/cdd1e39f904d463f8e0d2cba212b4287/FLAGc5dc54c45 [2019-10-07 14:56:54,689 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:56:54,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product23.cil.c [2019-10-07 14:56:54,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f6abce8/cdd1e39f904d463f8e0d2cba212b4287/FLAGc5dc54c45 [2019-10-07 14:56:54,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f6abce8/cdd1e39f904d463f8e0d2cba212b4287 [2019-10-07 14:56:54,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:56:54,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:56:54,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:56:54,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:56:54,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:56:54,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:56:54" (1/1) ... [2019-10-07 14:56:54,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297c3183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:54, skipping insertion in model container [2019-10-07 14:56:54,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:56:54" (1/1) ... [2019-10-07 14:56:54,923 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:56:55,000 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:56:55,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:56:55,859 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:56:55,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:56:56,062 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:56:56,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56 WrapperNode [2019-10-07 14:56:56,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:56:56,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:56:56,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:56:56,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:56:56,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56" (1/1) ... [2019-10-07 14:56:56,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56" (1/1) ... [2019-10-07 14:56:56,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56" (1/1) ... [2019-10-07 14:56:56,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56" (1/1) ... [2019-10-07 14:56:56,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56" (1/1) ... [2019-10-07 14:56:56,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56" (1/1) ... [2019-10-07 14:56:56,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56" (1/1) ... [2019-10-07 14:56:56,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:56:56,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:56:56,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:56:56,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:56:56,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:56:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:56:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:56:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:56:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:56:56,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:56:56,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:56:56,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:56:56,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:56:56,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:56:56,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:56:56,407 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:56:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:56:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:56:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:56:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:56:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:56:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:56:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:56:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:56:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:56:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:56:56,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:56:56,414 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:56:56,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:56:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:56:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:56:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:56:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:56:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:56:56,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:56:56,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:56:56,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:56:56,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:56:56,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:56:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:56:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:56:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:56:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:56:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:56:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:56:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:56:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:56:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:56:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:56:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:56:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:56:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:56:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:56:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:56:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:56:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:56:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-07 14:56:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:56:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:56:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:56:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:56:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:56:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:56:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:56:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:56:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:56:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:56:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:56:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:56:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:56:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:56:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:56:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:56:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:56:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:56:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:56:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:56:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:56:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:56:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:56:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:56:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:56:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:56:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:56:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:56:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:56:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:56:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:56:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:56:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:56:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:56:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:56:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:56:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:56:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:56:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:56:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:56:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:56:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:56:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:56:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:56:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:56:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:56:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:56:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:56:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:56:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:56:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:56:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:56:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:56:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:56:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:56:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:56:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:56:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:56:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:56:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:56:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:56:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:56:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:56:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:56:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:56:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:56:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:56:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:56:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:56:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:56:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:56:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:56:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:56:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:56:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:56:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:56:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:56:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:56:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:56:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:56:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:56:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:56:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:56:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:56:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:56:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:56:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:56:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:56:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:56:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:56:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:56:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:56:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:56:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:56:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:56:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:56:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:56:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:56:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:56:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:56:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:56:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:56:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:56:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:56:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:56:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:56:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:56:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:56:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:56:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:56:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:56:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:56:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:56:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:56:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:56:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:56:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:56:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:56:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:56:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:56:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:56:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:56:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:56:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:56:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:56:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:56:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:56:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:56:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:56:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:56:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:56:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:56:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:56:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:56:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:56:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:56:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:56:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:56:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:56:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:56:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:56:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:56:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:56:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:56:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:56:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:56:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:56:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:56:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:56:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:56:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-07 14:56:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:56:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:56:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:56:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:56:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:56:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:56:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:56:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:56:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:56:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:56:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:56:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:56:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:56:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:56:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:56:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:56:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:56:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:56:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:56:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:56:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:56:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:56:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:56:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:56:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:56:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:56:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:56:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:56:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:56:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:56:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:56:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:56:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:56:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:56:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:56:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:56:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:56:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:56:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:56:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:57:01,449 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:57:01,449 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:57:01,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:57:01 BoogieIcfgContainer [2019-10-07 14:57:01,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:57:01,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:57:01,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:57:01,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:57:01,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:56:54" (1/3) ... [2019-10-07 14:57:01,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c79d279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:57:01, skipping insertion in model container [2019-10-07 14:57:01,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:56" (2/3) ... [2019-10-07 14:57:01,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c79d279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:57:01, skipping insertion in model container [2019-10-07 14:57:01,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:57:01" (3/3) ... [2019-10-07 14:57:01,460 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product23.cil.c [2019-10-07 14:57:01,470 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:57:01,479 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:57:01,491 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:57:01,531 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:57:01,532 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:57:01,532 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:57:01,532 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:57:01,532 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:57:01,532 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:57:01,532 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:57:01,532 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:57:01,562 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states. [2019-10-07 14:57:01,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 14:57:01,583 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:01,586 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:01,590 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:01,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:01,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1717240347, now seen corresponding path program 1 times [2019-10-07 14:57:01,608 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:01,609 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:01,609 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:01,610 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:01,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:02,267 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:02,268 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:02,268 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:57:02,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:57:02,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:57:02,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:57:02,293 INFO L87 Difference]: Start difference. First operand 395 states. Second operand 2 states. [2019-10-07 14:57:02,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:02,367 INFO L93 Difference]: Finished difference Result 540 states and 637 transitions. [2019-10-07 14:57:02,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:57:02,369 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-07 14:57:02,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:02,401 INFO L225 Difference]: With dead ends: 540 [2019-10-07 14:57:02,402 INFO L226 Difference]: Without dead ends: 352 [2019-10-07 14:57:02,416 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:57:02,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2019-10-07 14:57:02,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2019-10-07 14:57:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2019-10-07 14:57:02,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 413 transitions. [2019-10-07 14:57:02,548 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 413 transitions. Word has length 125 [2019-10-07 14:57:02,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:02,551 INFO L462 AbstractCegarLoop]: Abstraction has 352 states and 413 transitions. [2019-10-07 14:57:02,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:57:02,551 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 413 transitions. [2019-10-07 14:57:02,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 14:57:02,557 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:02,557 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:02,558 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:02,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:02,558 INFO L82 PathProgramCache]: Analyzing trace with hash -749071762, now seen corresponding path program 1 times [2019-10-07 14:57:02,558 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:02,559 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:02,559 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:02,559 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:02,881 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:02,883 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:02,883 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:57:02,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:57:02,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:57:02,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:02,888 INFO L87 Difference]: Start difference. First operand 352 states and 413 transitions. Second operand 3 states. [2019-10-07 14:57:02,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:02,932 INFO L93 Difference]: Finished difference Result 525 states and 606 transitions. [2019-10-07 14:57:02,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:57:02,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-07 14:57:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:02,937 INFO L225 Difference]: With dead ends: 525 [2019-10-07 14:57:02,937 INFO L226 Difference]: Without dead ends: 354 [2019-10-07 14:57:02,939 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:02,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-10-07 14:57:02,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2019-10-07 14:57:02,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-07 14:57:02,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 415 transitions. [2019-10-07 14:57:02,966 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 415 transitions. Word has length 126 [2019-10-07 14:57:02,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:02,967 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 415 transitions. [2019-10-07 14:57:02,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:57:02,967 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 415 transitions. [2019-10-07 14:57:02,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:57:02,970 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:02,971 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] [2019-10-07 14:57:02,971 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:02,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:02,971 INFO L82 PathProgramCache]: Analyzing trace with hash 825851507, now seen corresponding path program 1 times [2019-10-07 14:57:02,972 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:02,972 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:02,972 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:02,972 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:03,198 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:03,198 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:03,198 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:57:03,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:57:03,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:57:03,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:03,199 INFO L87 Difference]: Start difference. First operand 354 states and 415 transitions. Second operand 3 states. [2019-10-07 14:57:03,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:03,237 INFO L93 Difference]: Finished difference Result 692 states and 840 transitions. [2019-10-07 14:57:03,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:57:03,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-07 14:57:03,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:03,242 INFO L225 Difference]: With dead ends: 692 [2019-10-07 14:57:03,242 INFO L226 Difference]: Without dead ends: 396 [2019-10-07 14:57:03,244 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:03,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-10-07 14:57:03,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2019-10-07 14:57:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-10-07 14:57:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 486 transitions. [2019-10-07 14:57:03,269 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 486 transitions. Word has length 135 [2019-10-07 14:57:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:03,270 INFO L462 AbstractCegarLoop]: Abstraction has 395 states and 486 transitions. [2019-10-07 14:57:03,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:57:03,270 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 486 transitions. [2019-10-07 14:57:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 14:57:03,274 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:03,274 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] [2019-10-07 14:57:03,274 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:03,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:03,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1322258251, now seen corresponding path program 1 times [2019-10-07 14:57:03,275 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:03,275 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:03,275 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:03,275 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:03,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:03,407 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:03,407 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:03,408 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:57:03,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:57:03,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:57:03,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:03,409 INFO L87 Difference]: Start difference. First operand 395 states and 486 transitions. Second operand 3 states. [2019-10-07 14:57:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:03,466 INFO L93 Difference]: Finished difference Result 812 states and 1048 transitions. [2019-10-07 14:57:03,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:57:03,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2019-10-07 14:57:03,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:03,475 INFO L225 Difference]: With dead ends: 812 [2019-10-07 14:57:03,475 INFO L226 Difference]: Without dead ends: 475 [2019-10-07 14:57:03,477 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:03,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2019-10-07 14:57:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 474. [2019-10-07 14:57:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-10-07 14:57:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 622 transitions. [2019-10-07 14:57:03,531 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 622 transitions. Word has length 136 [2019-10-07 14:57:03,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:03,533 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 622 transitions. [2019-10-07 14:57:03,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:57:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 622 transitions. [2019-10-07 14:57:03,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-07 14:57:03,543 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:03,543 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] [2019-10-07 14:57:03,544 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:03,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:03,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1071293799, now seen corresponding path program 1 times [2019-10-07 14:57:03,545 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:03,545 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:03,545 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:03,546 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:04,037 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-10-07 14:57:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:57:04,408 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:04,408 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:04,408 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:57:04,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:57:04,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:57:04,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:57:04,411 INFO L87 Difference]: Start difference. First operand 474 states and 622 transitions. Second operand 21 states. [2019-10-07 14:57:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:12,402 INFO L93 Difference]: Finished difference Result 842 states and 1049 transitions. [2019-10-07 14:57:12,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:57:12,403 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 139 [2019-10-07 14:57:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:12,409 INFO L225 Difference]: With dead ends: 842 [2019-10-07 14:57:12,409 INFO L226 Difference]: Without dead ends: 677 [2019-10-07 14:57:12,411 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:57:12,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2019-10-07 14:57:12,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 668. [2019-10-07 14:57:12,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-10-07 14:57:12,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 850 transitions. [2019-10-07 14:57:12,474 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 850 transitions. Word has length 139 [2019-10-07 14:57:12,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:12,480 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 850 transitions. [2019-10-07 14:57:12,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:57:12,480 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 850 transitions. [2019-10-07 14:57:12,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 14:57:12,486 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:12,487 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 14:57:12,487 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:12,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:12,487 INFO L82 PathProgramCache]: Analyzing trace with hash 793869072, now seen corresponding path program 1 times [2019-10-07 14:57:12,488 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:12,488 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:12,488 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:12,488 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:57:13,107 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:13,107 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:13,108 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:57:13,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:57:13,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:57:13,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:57:13,110 INFO L87 Difference]: Start difference. First operand 668 states and 850 transitions. Second operand 23 states. [2019-10-07 14:57:15,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:15,131 INFO L93 Difference]: Finished difference Result 746 states and 936 transitions. [2019-10-07 14:57:15,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:57:15,133 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 145 [2019-10-07 14:57:15,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:15,141 INFO L225 Difference]: With dead ends: 746 [2019-10-07 14:57:15,141 INFO L226 Difference]: Without dead ends: 739 [2019-10-07 14:57:15,143 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 14:57:15,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2019-10-07 14:57:15,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 732. [2019-10-07 14:57:15,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2019-10-07 14:57:15,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 921 transitions. [2019-10-07 14:57:15,189 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 921 transitions. Word has length 145 [2019-10-07 14:57:15,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:15,194 INFO L462 AbstractCegarLoop]: Abstraction has 732 states and 921 transitions. [2019-10-07 14:57:15,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:57:15,194 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 921 transitions. [2019-10-07 14:57:15,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-07 14:57:15,199 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:15,200 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:15,200 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:15,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:15,200 INFO L82 PathProgramCache]: Analyzing trace with hash -453109432, now seen corresponding path program 1 times [2019-10-07 14:57:15,201 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:15,201 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:15,201 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:15,201 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:15,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 14:57:15,460 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:15,460 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:15,461 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:57:15,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:57:15,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:57:15,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:57:15,465 INFO L87 Difference]: Start difference. First operand 732 states and 921 transitions. Second operand 8 states. [2019-10-07 14:57:15,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:15,540 INFO L93 Difference]: Finished difference Result 1115 states and 1365 transitions. [2019-10-07 14:57:15,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:57:15,541 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2019-10-07 14:57:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:15,548 INFO L225 Difference]: With dead ends: 1115 [2019-10-07 14:57:15,548 INFO L226 Difference]: Without dead ends: 732 [2019-10-07 14:57:15,552 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:57:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2019-10-07 14:57:15,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2019-10-07 14:57:15,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2019-10-07 14:57:15,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 919 transitions. [2019-10-07 14:57:15,692 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 919 transitions. Word has length 234 [2019-10-07 14:57:15,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:15,693 INFO L462 AbstractCegarLoop]: Abstraction has 732 states and 919 transitions. [2019-10-07 14:57:15,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:57:15,694 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 919 transitions. [2019-10-07 14:57:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-07 14:57:15,700 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:15,700 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:15,701 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:15,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:15,701 INFO L82 PathProgramCache]: Analyzing trace with hash -473744878, now seen corresponding path program 1 times [2019-10-07 14:57:15,701 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:15,701 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:15,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:15,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:15,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:16,026 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-07 14:57:16,027 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:16,027 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:16,028 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 14:57:16,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:57:16,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:57:16,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:57:16,030 INFO L87 Difference]: Start difference. First operand 732 states and 919 transitions. Second operand 11 states. [2019-10-07 14:57:18,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:18,815 INFO L93 Difference]: Finished difference Result 1298 states and 1547 transitions. [2019-10-07 14:57:18,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:57:18,816 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2019-10-07 14:57:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:18,823 INFO L225 Difference]: With dead ends: 1298 [2019-10-07 14:57:18,824 INFO L226 Difference]: Without dead ends: 987 [2019-10-07 14:57:18,826 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:57:18,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2019-10-07 14:57:18,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 965. [2019-10-07 14:57:18,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-07 14:57:18,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1174 transitions. [2019-10-07 14:57:18,893 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1174 transitions. Word has length 239 [2019-10-07 14:57:18,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:18,894 INFO L462 AbstractCegarLoop]: Abstraction has 965 states and 1174 transitions. [2019-10-07 14:57:18,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:57:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1174 transitions. [2019-10-07 14:57:18,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-07 14:57:18,900 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:18,900 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:18,901 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:18,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:18,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1630958948, now seen corresponding path program 1 times [2019-10-07 14:57:18,901 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:18,901 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:18,902 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:18,902 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-07 14:57:19,930 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:19,930 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:57:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:57:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:20,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 3239 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:57:20,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:57:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-10-07 14:57:20,838 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:57:21,520 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-07 14:57:21,521 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:57:21,562 INFO L162 IcfgInterpreter]: Started Sifa with 201 locations of interest [2019-10-07 14:57:21,562 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:57:21,569 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:57:21,578 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:57:21,579 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:58:13,075 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 676 [2019-10-07 14:58:16,985 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 291 DAG size of output: 237 [2019-10-07 14:58:17,351 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-10-07 14:58:17,675 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-10-07 14:58:17,876 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-10-07 14:58:18,016 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:18,652 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 14:58:19,318 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 14:58:19,913 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 14:58:20,126 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:20,717 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 14:58:21,949 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1008 DAG size of output: 1006 [2019-10-07 14:58:22,539 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 14:58:22,680 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:23,316 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 14:58:23,915 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 14:58:24,537 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 14:58:24,658 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:25,242 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 14:58:25,275 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 553 for LOIs [2019-10-07 14:58:25,716 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 643 [2019-10-07 14:58:25,821 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 643 [2019-10-07 14:58:25,943 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:26,402 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 937 [2019-10-07 14:58:26,403 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1058 for LOIs [2019-10-07 14:58:26,989 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:27,560 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:27,875 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:28,866 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:29,450 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:30,058 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:30,302 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:31,290 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:31,914 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:32,483 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:32,743 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:33,699 WARN L191 SmtUtils]: Spent 954.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:34,660 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 1252 DAG size of output: 1058 [2019-10-07 14:58:35,237 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:35,515 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:36,478 WARN L191 SmtUtils]: Spent 960.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:37,060 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:37,659 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:37,914 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:38,868 WARN L191 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:39,442 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:40,022 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:40,266 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:41,243 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:41,820 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:42,391 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:42,703 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:43,665 WARN L191 SmtUtils]: Spent 960.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:44,238 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:44,829 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:45,090 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:46,050 WARN L191 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:46,626 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:47,202 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:47,457 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:48,425 WARN L191 SmtUtils]: Spent 965.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:48,994 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:49,571 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:49,814 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:50,788 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:51,354 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:51,929 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:52,182 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:53,134 WARN L191 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:53,707 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:54,291 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:54,535 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:55,501 WARN L191 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:56,075 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:56,652 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1058 [2019-10-07 14:58:56,894 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:57,855 WARN L191 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:58,885 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:58:59,842 WARN L191 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:00,102 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:01,073 WARN L191 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:02,862 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1250 [2019-10-07 14:59:03,823 WARN L191 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:04,083 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:05,045 WARN L191 SmtUtils]: Spent 960.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:06,002 WARN L191 SmtUtils]: Spent 954.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:06,965 WARN L191 SmtUtils]: Spent 960.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:07,207 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:08,171 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:09,203 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:10,174 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:10,427 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:11,407 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:12,589 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:13,563 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:13,818 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:14,788 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:15,766 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:16,736 WARN L191 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:16,986 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:17,953 WARN L191 SmtUtils]: Spent 965.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:18,935 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:59:19,905 WARN L191 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:59:20,157 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:21,135 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:59:22,108 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1261 [2019-10-07 14:59:23,082 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1261 [2019-10-07 14:59:23,332 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:24,311 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1261 [2019-10-07 14:59:26,360 WARN L191 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1250 [2019-10-07 14:59:27,326 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:27,603 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:28,568 WARN L191 SmtUtils]: Spent 963.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:30,353 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1250 [2019-10-07 14:59:31,318 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:31,572 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:32,533 WARN L191 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:33,484 WARN L191 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:34,441 WARN L191 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:34,685 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:35,652 WARN L191 SmtUtils]: Spent 965.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:37,434 WARN L191 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1250 [2019-10-07 14:59:38,385 WARN L191 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:38,639 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:39,597 WARN L191 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:41,376 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1250 [2019-10-07 14:59:42,343 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:42,599 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:43,562 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:44,527 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:45,487 WARN L191 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:45,730 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:46,703 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:59:48,395 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:59:49,356 WARN L191 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:59:49,608 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:50,566 WARN L191 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:51,548 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:52,516 WARN L191 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:52,765 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:53,724 WARN L191 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:55,375 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:59:56,330 WARN L191 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:59:56,576 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:57,541 WARN L191 SmtUtils]: Spent 963.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:59:59,276 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1252 [2019-10-07 15:00:00,230 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:00:00,484 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 15:00:01,439 WARN L191 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 15:00:03,276 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1263 DAG size of output: 1254 [2019-10-07 15:00:04,229 WARN L191 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 15:00:04,503 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 15:00:05,457 WARN L191 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 15:00:05,717 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:00:05,718 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 15:00:05,726 INFO L168 Benchmark]: Toolchain (without parser) took 190818.58 ms. Allocated memory was 147.8 MB in the beginning and 940.0 MB in the end (delta: 792.2 MB). Free memory was 101.7 MB in the beginning and 466.7 MB in the end (delta: -365.1 MB). Peak memory consumption was 427.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:05,727 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:00:05,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1155.02 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 101.5 MB in the beginning and 140.3 MB in the end (delta: -38.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:05,728 INFO L168 Benchmark]: Boogie Preprocessor took 247.65 ms. Allocated memory is still 205.5 MB. Free memory was 140.3 MB in the beginning and 131.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:05,729 INFO L168 Benchmark]: RCFGBuilder took 5139.67 ms. Allocated memory was 205.5 MB in the beginning and 288.4 MB in the end (delta: 82.8 MB). Free memory was 131.0 MB in the beginning and 205.0 MB in the end (delta: -74.1 MB). Peak memory consumption was 130.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:05,729 INFO L168 Benchmark]: TraceAbstraction took 184271.54 ms. Allocated memory was 288.4 MB in the beginning and 940.0 MB in the end (delta: 651.7 MB). Free memory was 205.0 MB in the beginning and 466.7 MB in the end (delta: -261.7 MB). Peak memory consumption was 390.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:05,732 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1155.02 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 101.5 MB in the beginning and 140.3 MB in the end (delta: -38.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 247.65 ms. Allocated memory is still 205.5 MB. Free memory was 140.3 MB in the beginning and 131.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5139.67 ms. Allocated memory was 205.5 MB in the beginning and 288.4 MB in the end (delta: 82.8 MB). Free memory was 131.0 MB in the beginning and 205.0 MB in the end (delta: -74.1 MB). Peak memory consumption was 130.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 184271.54 ms. Allocated memory was 288.4 MB in the beginning and 940.0 MB in the end (delta: 651.7 MB). Free memory was 205.0 MB in the beginning and 466.7 MB in the end (delta: -261.7 MB). Peak memory consumption was 390.0 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...