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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:56:26,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:56:26,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:56:26,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:56:26,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:56:26,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:56:26,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:56:26,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:56:26,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:56:26,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:56:26,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:56:26,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:56:26,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:56:26,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:56:26,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:56:26,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:56:26,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:56:26,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:56:26,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:56:26,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:56:26,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:56:26,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:56:26,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:56:26,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:56:26,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:56:26,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:56:26,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:56:26,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:56:26,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:56:26,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:56:26,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:56:26,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:56:26,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:56:26,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:56:26,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:56:26,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:56:26,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:56:26,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:56:26,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:56:26,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:56:26,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:56:26,449 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 14:56:26,470 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:56:26,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:56:26,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:56:26,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:56:26,476 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:56:26,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:56:26,476 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:56:26,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:56:26,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:56:26,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:56:26,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:56:26,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:56:26,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:56:26,479 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:56:26,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:56:26,479 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:56:26,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:56:26,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:56:26,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:56:26,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:56:26,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:56:26,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:56:26,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:56:26,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:56:26,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:56:26,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:56:26,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:56:26,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:56:26,482 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 14:56:26,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:56:26,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:56:26,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:56:26,798 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:56:26,799 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:56:26,800 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-10-07 14:56:26,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1447729/1a321c7ea2c640c2ab65058656c703cf/FLAGeed1c18f2 [2019-10-07 14:56:27,504 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:56:27,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-10-07 14:56:27,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1447729/1a321c7ea2c640c2ab65058656c703cf/FLAGeed1c18f2 [2019-10-07 14:56:27,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1447729/1a321c7ea2c640c2ab65058656c703cf [2019-10-07 14:56:27,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:56:27,730 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:56:27,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:56:27,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:56:27,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:56:27,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:56:27" (1/1) ... [2019-10-07 14:56:27,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21180631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:27, skipping insertion in model container [2019-10-07 14:56:27,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:56:27" (1/1) ... [2019-10-07 14:56:27,748 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:56:27,838 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:56:28,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:56:28,579 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:56:28,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:56:28,835 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:56:28,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28 WrapperNode [2019-10-07 14:56:28,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:56:28,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:56:28,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:56:28,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:56:28,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28" (1/1) ... [2019-10-07 14:56:28,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28" (1/1) ... [2019-10-07 14:56:28,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28" (1/1) ... [2019-10-07 14:56:28,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28" (1/1) ... [2019-10-07 14:56:28,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28" (1/1) ... [2019-10-07 14:56:28,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28" (1/1) ... [2019-10-07 14:56:29,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28" (1/1) ... [2019-10-07 14:56:29,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:56:29,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:56:29,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:56:29,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:56:29,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28" (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 14:56:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:56:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:56:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:56:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:56:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:56:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:56:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:56:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:56:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:56:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:56:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:56:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:56:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:56:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:56:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:56:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:56:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:56:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:56:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:56:29,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:56:29,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:56:29,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:56:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:56:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:56:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:56:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:56:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:56:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:56:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:56:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:56:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:56:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:56:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:56:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:56:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:56:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:56:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:56:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:56:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:56:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:56:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:56:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:56:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:56:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:56:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:56:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:56:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:56:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:56:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:56:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:56:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:56:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:56:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:56:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:56:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:56:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:56:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:56:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:56:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:56:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:56:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:56:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:56:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:56:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:56:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:56:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:56:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:56:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:56:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:56:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:56:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:56:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:56:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:56:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 14:56:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:56:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:56:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:56:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:56:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:56:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:56:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:56:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:56:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:56:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:56:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:56:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:56:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:56:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:56:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:56:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:56:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:56:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:56:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:56:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:56:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:56:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-07 14:56:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:56:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:56:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:56:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:56:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:56:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:56:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:56:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:56:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:56:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:56:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:56:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:56:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:56:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:56:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:56:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:56:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:56:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:56:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:56:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:56:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:56:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:56:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:56:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:56:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:56:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:56:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:56:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:56:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:56:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:56:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:56:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:56:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:56:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:56:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:56:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:56:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:56:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:56:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:56:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:56:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:56:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:56:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:56:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:56:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:56:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:56:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:56:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:56:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:56:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:56:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:56:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:56:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:56:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:56:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:56:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:56:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:56:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:56:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:56:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:56:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:56:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:56:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:56:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:56:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:56:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:56:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:56:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:56:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:56:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:56:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:56:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:56:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:56:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:56:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:56:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:56:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:56:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:56:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:56:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:56:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:56:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:56:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:56:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:56:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:56:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:56:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:56:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:56:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:56:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:56:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:56:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:56:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:56:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:56:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:56:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:56:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:56:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:56:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:56:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:56:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:56:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:56:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:56:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:56:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 14:56:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:56:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:56:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:56:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:56:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:56:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:56:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:56:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:56:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:56:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:56:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:56:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:56:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:56:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:56:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:56:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:56:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:56:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:56:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:56:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:56:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:56:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:56:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:56:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:56:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:56:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:56:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:56:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:56:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:56:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:56:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-07 14:56:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:56:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:56:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:56:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:56:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:56:33,586 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:56:33,586 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:56:33,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:56:33 BoogieIcfgContainer [2019-10-07 14:56:33,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:56:33,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:56:33,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:56:33,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:56:33,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:56:27" (1/3) ... [2019-10-07 14:56:33,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c4430e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:56:33, skipping insertion in model container [2019-10-07 14:56:33,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:28" (2/3) ... [2019-10-07 14:56:33,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c4430e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:56:33, skipping insertion in model container [2019-10-07 14:56:33,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:56:33" (3/3) ... [2019-10-07 14:56:33,597 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product18.cil.c [2019-10-07 14:56:33,607 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:56:33,617 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:56:33,630 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:56:33,661 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:56:33,661 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:56:33,661 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:56:33,661 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:56:33,662 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:56:33,662 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:56:33,662 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:56:33,662 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:56:33,692 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2019-10-07 14:56:33,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:56:33,709 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:33,710 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] [2019-10-07 14:56:33,713 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:33,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:33,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1826903467, now seen corresponding path program 1 times [2019-10-07 14:56:33,729 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:33,729 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:33,730 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:33,730 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:33,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:34,289 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 14:56:34,290 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:34,290 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:34,291 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:56:34,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:56:34,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:56:34,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:56:34,312 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 2 states. [2019-10-07 14:56:34,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:34,377 INFO L93 Difference]: Finished difference Result 476 states and 555 transitions. [2019-10-07 14:56:34,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:56:34,378 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 118 [2019-10-07 14:56:34,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:34,397 INFO L225 Difference]: With dead ends: 476 [2019-10-07 14:56:34,397 INFO L226 Difference]: Without dead ends: 313 [2019-10-07 14:56:34,403 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 14:56:34,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-10-07 14:56:34,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-10-07 14:56:34,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-10-07 14:56:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 366 transitions. [2019-10-07 14:56:34,524 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 366 transitions. Word has length 118 [2019-10-07 14:56:34,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:34,526 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 366 transitions. [2019-10-07 14:56:34,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:56:34,526 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 366 transitions. [2019-10-07 14:56:34,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:56:34,533 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:34,533 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] [2019-10-07 14:56:34,534 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:34,534 INFO L82 PathProgramCache]: Analyzing trace with hash -488779353, now seen corresponding path program 1 times [2019-10-07 14:56:34,534 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:34,535 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:34,535 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:34,535 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:34,842 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 14:56:34,842 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:34,843 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:34,843 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:56:34,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:56:34,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:56:34,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:56:34,847 INFO L87 Difference]: Start difference. First operand 313 states and 366 transitions. Second operand 3 states. [2019-10-07 14:56:34,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:34,926 INFO L93 Difference]: Finished difference Result 461 states and 527 transitions. [2019-10-07 14:56:34,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:56:34,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-07 14:56:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:34,931 INFO L225 Difference]: With dead ends: 461 [2019-10-07 14:56:34,932 INFO L226 Difference]: Without dead ends: 315 [2019-10-07 14:56:34,934 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 14:56:34,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-10-07 14:56:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2019-10-07 14:56:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-10-07 14:56:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 368 transitions. [2019-10-07 14:56:34,959 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 368 transitions. Word has length 119 [2019-10-07 14:56:34,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:34,961 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 368 transitions. [2019-10-07 14:56:34,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:56:34,962 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 368 transitions. [2019-10-07 14:56:34,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 14:56:34,967 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:34,968 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:56:34,968 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:34,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1990736762, now seen corresponding path program 1 times [2019-10-07 14:56:34,970 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:34,970 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:34,971 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:34,971 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:35,189 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 14:56:35,189 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:35,189 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:35,189 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:56:35,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:56:35,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:56:35,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:56:35,193 INFO L87 Difference]: Start difference. First operand 315 states and 368 transitions. Second operand 3 states. [2019-10-07 14:56:35,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:35,307 INFO L93 Difference]: Finished difference Result 612 states and 743 transitions. [2019-10-07 14:56:35,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:56:35,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-07 14:56:35,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:35,317 INFO L225 Difference]: With dead ends: 612 [2019-10-07 14:56:35,318 INFO L226 Difference]: Without dead ends: 355 [2019-10-07 14:56:35,325 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 14:56:35,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-07 14:56:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2019-10-07 14:56:35,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-07 14:56:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 436 transitions. [2019-10-07 14:56:35,366 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 436 transitions. Word has length 128 [2019-10-07 14:56:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:35,367 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 436 transitions. [2019-10-07 14:56:35,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:56:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 436 transitions. [2019-10-07 14:56:35,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:56:35,373 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:35,375 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] [2019-10-07 14:56:35,376 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:35,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:35,376 INFO L82 PathProgramCache]: Analyzing trace with hash -834547700, now seen corresponding path program 1 times [2019-10-07 14:56:35,376 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:35,377 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:35,377 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:35,377 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:35,526 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 14:56:35,526 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:35,526 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:35,527 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:56:35,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:56:35,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:56:35,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:56:35,528 INFO L87 Difference]: Start difference. First operand 354 states and 436 transitions. Second operand 3 states. [2019-10-07 14:56:35,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:35,560 INFO L93 Difference]: Finished difference Result 726 states and 942 transitions. [2019-10-07 14:56:35,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:56:35,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-07 14:56:35,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:35,565 INFO L225 Difference]: With dead ends: 726 [2019-10-07 14:56:35,565 INFO L226 Difference]: Without dead ends: 430 [2019-10-07 14:56:35,566 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 14:56:35,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-07 14:56:35,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 429. [2019-10-07 14:56:35,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-10-07 14:56:35,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 566 transitions. [2019-10-07 14:56:35,588 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 566 transitions. Word has length 129 [2019-10-07 14:56:35,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:35,589 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 566 transitions. [2019-10-07 14:56:35,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:56:35,589 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 566 transitions. [2019-10-07 14:56:35,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 14:56:35,592 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:35,593 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] [2019-10-07 14:56:35,593 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:35,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:35,594 INFO L82 PathProgramCache]: Analyzing trace with hash -24968700, now seen corresponding path program 1 times [2019-10-07 14:56:35,594 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:35,594 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:35,594 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:35,594 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:36,036 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 14:56:36,036 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:36,036 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:36,037 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-07 14:56:36,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-07 14:56:36,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-07 14:56:36,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:56:36,041 INFO L87 Difference]: Start difference. First operand 429 states and 566 transitions. Second operand 19 states. [2019-10-07 14:56:42,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:42,023 INFO L93 Difference]: Finished difference Result 728 states and 897 transitions. [2019-10-07 14:56:42,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-07 14:56:42,023 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 132 [2019-10-07 14:56:42,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:42,030 INFO L225 Difference]: With dead ends: 728 [2019-10-07 14:56:42,030 INFO L226 Difference]: Without dead ends: 578 [2019-10-07 14:56:42,034 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2019-10-07 14:56:42,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2019-10-07 14:56:42,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 571. [2019-10-07 14:56:42,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-10-07 14:56:42,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 723 transitions. [2019-10-07 14:56:42,082 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 723 transitions. Word has length 132 [2019-10-07 14:56:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:42,083 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 723 transitions. [2019-10-07 14:56:42,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-07 14:56:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 723 transitions. [2019-10-07 14:56:42,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 14:56:42,086 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:42,086 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] [2019-10-07 14:56:42,087 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:42,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:42,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1293244106, now seen corresponding path program 1 times [2019-10-07 14:56:42,087 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:42,088 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:42,088 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:42,088 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:42,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:42,715 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 14:56:42,718 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:42,718 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:42,718 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:56:42,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:56:42,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:56:42,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:56:42,720 INFO L87 Difference]: Start difference. First operand 571 states and 723 transitions. Second operand 21 states. [2019-10-07 14:56:44,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:44,120 INFO L93 Difference]: Finished difference Result 620 states and 774 transitions. [2019-10-07 14:56:44,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:56:44,121 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 138 [2019-10-07 14:56:44,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:44,129 INFO L225 Difference]: With dead ends: 620 [2019-10-07 14:56:44,129 INFO L226 Difference]: Without dead ends: 596 [2019-10-07 14:56:44,131 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2019-10-07 14:56:44,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-07 14:56:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 591. [2019-10-07 14:56:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-07 14:56:44,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 742 transitions. [2019-10-07 14:56:44,173 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 742 transitions. Word has length 138 [2019-10-07 14:56:44,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:44,174 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 742 transitions. [2019-10-07 14:56:44,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:56:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 742 transitions. [2019-10-07 14:56:44,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-07 14:56:44,179 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:44,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:44,179 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:44,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:44,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1983223466, now seen corresponding path program 1 times [2019-10-07 14:56:44,180 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:44,180 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:44,180 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:44,181 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:44,369 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-07 14:56:44,370 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:44,370 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:44,370 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:56:44,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:56:44,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:56:44,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:56:44,372 INFO L87 Difference]: Start difference. First operand 591 states and 742 transitions. Second operand 8 states. [2019-10-07 14:56:44,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:44,431 INFO L93 Difference]: Finished difference Result 774 states and 931 transitions. [2019-10-07 14:56:44,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:56:44,432 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2019-10-07 14:56:44,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:44,436 INFO L225 Difference]: With dead ends: 774 [2019-10-07 14:56:44,436 INFO L226 Difference]: Without dead ends: 591 [2019-10-07 14:56:44,437 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 14:56:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-10-07 14:56:44,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2019-10-07 14:56:44,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-07 14:56:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 740 transitions. [2019-10-07 14:56:44,468 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 740 transitions. Word has length 218 [2019-10-07 14:56:44,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:44,469 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 740 transitions. [2019-10-07 14:56:44,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:56:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 740 transitions. [2019-10-07 14:56:44,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-10-07 14:56:44,474 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:44,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:44,474 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:44,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:44,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1005750476, now seen corresponding path program 1 times [2019-10-07 14:56:44,475 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:44,475 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:44,475 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:44,475 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:44,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:44,835 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:56:44,835 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:44,836 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:44,836 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 14:56:44,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:56:44,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:56:44,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:56:44,837 INFO L87 Difference]: Start difference. First operand 591 states and 740 transitions. Second operand 11 states. [2019-10-07 14:56:47,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:47,089 INFO L93 Difference]: Finished difference Result 738 states and 886 transitions. [2019-10-07 14:56:47,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:56:47,090 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 223 [2019-10-07 14:56:47,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:47,094 INFO L225 Difference]: With dead ends: 738 [2019-10-07 14:56:47,095 INFO L226 Difference]: Without dead ends: 615 [2019-10-07 14:56:47,096 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 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 14:56:47,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-07 14:56:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 566. [2019-10-07 14:56:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-07 14:56:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 705 transitions. [2019-10-07 14:56:47,171 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 705 transitions. Word has length 223 [2019-10-07 14:56:47,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:47,172 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 705 transitions. [2019-10-07 14:56:47,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:56:47,172 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 705 transitions. [2019-10-07 14:56:47,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-07 14:56:47,177 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:47,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:47,177 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:47,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:47,178 INFO L82 PathProgramCache]: Analyzing trace with hash 427289385, now seen corresponding path program 1 times [2019-10-07 14:56:47,178 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:47,178 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:47,178 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:47,179 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:47,963 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:56:47,964 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:47,964 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:56:47,964 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 14:56:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:48,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:56:48,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:56:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:56:48,790 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:56:49,331 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:56:49,331 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:56:49,369 INFO L162 IcfgInterpreter]: Started Sifa with 192 locations of interest [2019-10-07 14:56:49,369 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:56:49,377 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:56:49,384 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:56:49,384 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:57:19,494 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 653 [2019-10-07 14:57:22,613 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 266 DAG size of output: 217 [2019-10-07 14:57:22,935 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 683 [2019-10-07 14:57:23,203 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 683 [2019-10-07 14:57:23,524 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 683 [2019-10-07 14:57:23,686 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:24,289 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:57:24,937 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:57:25,493 WARN L191 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:57:25,771 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:26,334 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:57:27,645 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 975 DAG size of output: 973 [2019-10-07 14:57:28,194 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:57:28,327 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:28,888 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:57:29,421 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:57:30,009 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:57:30,123 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:30,680 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:57:30,703 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 541 for LOIs [2019-10-07 14:57:31,083 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 622 [2019-10-07 14:57:31,187 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 622 [2019-10-07 14:57:31,304 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:31,722 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 912 [2019-10-07 14:57:31,724 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1009 for LOIs [2019-10-07 14:57:32,289 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:32,817 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:33,132 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:33,909 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:34,463 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:35,023 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:35,212 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:36,000 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:36,577 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:37,106 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:37,314 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:38,078 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:39,067 WARN L191 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 1009 [2019-10-07 14:57:39,602 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:39,983 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 560 DAG size of output: 558 [2019-10-07 14:57:40,765 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:41,309 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:41,848 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:42,033 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:42,805 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:43,354 WARN L191 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:43,895 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:44,081 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:44,848 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:45,376 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:45,910 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:46,103 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:46,882 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:47,414 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:47,946 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:48,133 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:48,907 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:49,441 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:49,986 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:50,173 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:50,946 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:51,475 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:52,003 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:52,188 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:52,953 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:53,490 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:54,024 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:54,211 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:54,978 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:55,509 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:56,038 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:56,223 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:56,991 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:57,521 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:58,052 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:57:58,237 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:59,005 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:57:59,857 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:00,635 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:00,841 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:01,621 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:03,014 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1135 DAG size of output: 1133 [2019-10-07 14:58:03,785 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:03,984 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:04,754 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:05,517 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:06,282 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:06,470 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:07,243 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:08,066 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:08,845 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:09,040 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:09,828 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:11,224 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1139 DAG size of output: 1137 [2019-10-07 14:58:12,013 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:12,211 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:12,987 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:13,772 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:14,567 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:14,756 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:15,532 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:16,531 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:58:17,308 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:58:17,499 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:18,272 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:19,048 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:19,830 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:20,023 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:20,804 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:58:22,564 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1135 DAG size of output: 1133 [2019-10-07 14:58:23,329 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:23,526 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:24,289 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:25,693 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1135 DAG size of output: 1133 [2019-10-07 14:58:26,460 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:26,657 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:27,438 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:28,214 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:28,975 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:29,162 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:29,943 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:31,340 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1135 DAG size of output: 1133 [2019-10-07 14:58:32,119 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:32,313 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:33,079 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:34,465 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1135 DAG size of output: 1133 [2019-10-07 14:58:35,235 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:35,431 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:36,195 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:36,957 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:37,726 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:37,911 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:38,677 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1133 [2019-10-07 14:58:39,994 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1139 DAG size of output: 1135 [2019-10-07 14:58:40,759 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:58:40,952 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:41,730 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:43,132 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1139 DAG size of output: 1137 [2019-10-07 14:58:43,914 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:44,112 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:44,889 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:46,203 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1139 DAG size of output: 1135 [2019-10-07 14:58:46,982 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:58:47,171 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:47,946 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:49,332 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1139 DAG size of output: 1135 [2019-10-07 14:58:50,102 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:58:50,301 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:51,063 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:52,445 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1137 [2019-10-07 14:58:53,219 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:58:53,413 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:54,188 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:58:54,445 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:58:54,446 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:58:54,458 INFO L168 Benchmark]: Toolchain (without parser) took 146725.69 ms. Allocated memory was 138.4 MB in the beginning and 842.0 MB in the end (delta: 703.6 MB). Free memory was 99.0 MB in the beginning and 725.9 MB in the end (delta: -626.9 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:58:54,459 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:58:54,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1104.89 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 98.6 MB in the beginning and 141.7 MB in the end (delta: -43.1 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:58:54,463 INFO L168 Benchmark]: Boogie Preprocessor took 196.85 ms. Allocated memory is still 205.0 MB. Free memory was 141.7 MB in the beginning and 133.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:58:54,464 INFO L168 Benchmark]: RCFGBuilder took 4554.55 ms. Allocated memory was 205.0 MB in the beginning and 288.4 MB in the end (delta: 83.4 MB). Free memory was 133.4 MB in the beginning and 92.5 MB in the end (delta: 40.9 MB). Peak memory consumption was 124.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:58:54,465 INFO L168 Benchmark]: TraceAbstraction took 140864.71 ms. Allocated memory was 288.4 MB in the beginning and 842.0 MB in the end (delta: 553.6 MB). Free memory was 92.5 MB in the beginning and 725.9 MB in the end (delta: -633.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 14:58:54,471 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1104.89 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 98.6 MB in the beginning and 141.7 MB in the end (delta: -43.1 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 196.85 ms. Allocated memory is still 205.0 MB. Free memory was 141.7 MB in the beginning and 133.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4554.55 ms. Allocated memory was 205.0 MB in the beginning and 288.4 MB in the end (delta: 83.4 MB). Free memory was 133.4 MB in the beginning and 92.5 MB in the end (delta: 40.9 MB). Peak memory consumption was 124.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 140864.71 ms. Allocated memory was 288.4 MB in the beginning and 842.0 MB in the end (delta: 553.6 MB). Free memory was 92.5 MB in the beginning and 725.9 MB in the end (delta: -633.3 MB). There was no memory consumed. 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...