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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:59:11,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:59:11,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:59:11,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:59:11,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:59:11,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:59:11,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:59:11,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:59:11,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:59:11,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:59:11,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:59:11,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:59:11,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:59:11,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:59:11,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:59:11,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:59:11,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:59:11,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:59:11,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:59:11,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:59:11,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:59:11,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:59:11,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:59:11,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:59:11,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:59:11,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:59:11,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:59:11,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:59:11,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:59:11,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:59:11,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:59:11,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:59:11,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:59:11,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:59:11,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:59:11,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:59:11,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:59:11,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:59:11,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:59:11,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:59:11,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:59:11,098 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 14:59:11,121 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:59:11,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:59:11,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:59:11,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:59:11,123 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:59:11,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:59:11,124 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:59:11,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:59:11,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:59:11,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:59:11,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:59:11,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:59:11,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:59:11,125 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:59:11,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:59:11,126 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:59:11,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:59:11,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:59:11,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:59:11,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:59:11,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:59:11,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:59:11,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:59:11,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:59:11,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:59:11,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:59:11,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:59:11,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:59:11,128 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 14:59:11,474 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:59:11,489 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:59:11,493 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:59:11,494 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:59:11,495 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:59:11,496 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product35.cil.c [2019-10-07 14:59:11,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625e2c45e/caec6b0426514b0a8074e5d48b2ca289/FLAG8b0c33ee0 [2019-10-07 14:59:12,226 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:59:12,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product35.cil.c [2019-10-07 14:59:12,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625e2c45e/caec6b0426514b0a8074e5d48b2ca289/FLAG8b0c33ee0 [2019-10-07 14:59:12,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625e2c45e/caec6b0426514b0a8074e5d48b2ca289 [2019-10-07 14:59:12,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:59:12,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:59:12,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:59:12,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:59:12,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:59:12,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:59:12" (1/1) ... [2019-10-07 14:59:12,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5381d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:12, skipping insertion in model container [2019-10-07 14:59:12,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:59:12" (1/1) ... [2019-10-07 14:59:12,492 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:59:12,574 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:59:13,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:59:13,388 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:59:13,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:59:13,604 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:59:13,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13 WrapperNode [2019-10-07 14:59:13,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:59:13,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:59:13,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:59:13,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:59:13,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13" (1/1) ... [2019-10-07 14:59:13,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13" (1/1) ... [2019-10-07 14:59:13,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13" (1/1) ... [2019-10-07 14:59:13,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13" (1/1) ... [2019-10-07 14:59:13,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13" (1/1) ... [2019-10-07 14:59:13,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13" (1/1) ... [2019-10-07 14:59:13,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13" (1/1) ... [2019-10-07 14:59:13,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:59:13,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:59:13,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:59:13,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:59:13,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13" (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 14:59:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:59:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:59:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:59:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:59:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:59:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:59:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:59:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:59:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:59:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:59:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:59:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:59:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:59:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:59:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:59:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:59:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:59:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:59:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:59:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:59:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:59:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:59:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:59:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:59:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:59:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:59:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:59:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:59:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:59:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:59:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:59:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:59:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:59:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:59:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:59:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:59:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:59:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:59:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:59:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:59:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:59:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:59:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:59:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:59:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:59:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:59:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:59:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:59:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:59:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:59:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:59:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:59:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:59:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:59:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:59:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:59:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:59:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:59:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:59:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:59:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:59:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:59:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:59:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:59:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:59:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:59:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:59:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:59:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:59:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:59:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:59:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:59:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:59:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:59:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:59:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:59:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:59:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:59:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:59:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:59:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:59:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:59:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:59:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:59:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:59:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:59:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:59:13,976 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:59:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:59:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:59:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:59:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:59:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:59:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:59:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:59:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:59:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:59:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:59:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:59:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:59:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:59:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:59:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:59:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:59:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:59:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:59:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:59:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:59:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:59:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:59:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:59:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:59:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:59:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:59:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:59:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:59:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:59:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:59:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:59:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:59:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:59:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:59:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:59:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:59:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:59:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:59:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:59:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:59:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:59:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:59:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:59:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:59:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:59:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:59:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:59:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:59:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:59:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:59:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:59:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:59:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:59:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:59:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:59:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:59:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:59:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:59:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:59:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:59:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:59:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:59:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:59:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:59:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:59:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:59:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:59:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:59:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:59:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:59:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:59:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:59:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:59:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:59:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:59:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:59:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:59:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:59:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:59:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:59:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:59:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:59:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:59:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:59:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:59:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:59:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:59:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:59:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:59:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:59:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:59:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:59:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:59:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:59:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:59:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:59:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:59:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:59:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:59:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:59:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:59:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:59:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:59:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:59:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:59:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:59:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:59:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:59:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:59:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:59:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:59:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:59:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:59:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:59:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:59:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:59:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:59:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:59:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:59:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:59:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:59:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:59:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:59:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:59:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:59:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:59:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:59:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:59:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:59:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:59:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:59:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:59:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:59:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:59:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:59:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:59:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:59:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:59:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:59:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:59:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:59:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:59:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:59:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:59:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:59:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:59:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:59:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:59:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:59:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:59:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:59:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:59:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:59:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:59:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:59:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:59:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:59:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:59:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:59:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:59:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:59:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:59:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:59:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:59:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:59:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:59:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:59:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:59:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:59:18,906 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:59:18,906 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:59:18,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:59:18 BoogieIcfgContainer [2019-10-07 14:59:18,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:59:18,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:59:18,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:59:18,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:59:18,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:59:12" (1/3) ... [2019-10-07 14:59:18,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca739a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:59:18, skipping insertion in model container [2019-10-07 14:59:18,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:13" (2/3) ... [2019-10-07 14:59:18,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca739a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:59:18, skipping insertion in model container [2019-10-07 14:59:18,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:59:18" (3/3) ... [2019-10-07 14:59:18,924 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product35.cil.c [2019-10-07 14:59:18,935 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:59:18,948 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:59:18,968 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:59:19,016 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:59:19,017 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:59:19,017 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:59:19,017 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:59:19,018 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:59:19,018 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:59:19,018 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:59:19,018 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:59:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states. [2019-10-07 14:59:19,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 14:59:19,148 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:19,149 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:19,151 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:19,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:19,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1302559381, now seen corresponding path program 1 times [2019-10-07 14:59:19,164 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:19,164 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:19,165 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:19,165 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:19,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:19,876 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 14:59:19,876 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:19,877 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:19,877 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:59:19,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:59:19,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:59:19,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:59:19,901 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 2 states. [2019-10-07 14:59:19,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:19,988 INFO L93 Difference]: Finished difference Result 733 states and 875 transitions. [2019-10-07 14:59:19,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:59:19,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-07 14:59:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:20,025 INFO L225 Difference]: With dead ends: 733 [2019-10-07 14:59:20,025 INFO L226 Difference]: Without dead ends: 452 [2019-10-07 14:59:20,032 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 14:59:20,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2019-10-07 14:59:20,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2019-10-07 14:59:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-10-07 14:59:20,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 535 transitions. [2019-10-07 14:59:20,147 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 535 transitions. Word has length 136 [2019-10-07 14:59:20,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:20,150 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 535 transitions. [2019-10-07 14:59:20,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:59:20,150 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 535 transitions. [2019-10-07 14:59:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-07 14:59:20,156 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:20,157 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:20,157 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:20,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:20,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1667097681, now seen corresponding path program 1 times [2019-10-07 14:59:20,158 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:20,158 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:20,158 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:20,158 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:20,472 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 14:59:20,473 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:20,473 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:20,473 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:59:20,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:59:20,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:59:20,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:59:20,479 INFO L87 Difference]: Start difference. First operand 452 states and 535 transitions. Second operand 3 states. [2019-10-07 14:59:20,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:20,567 INFO L93 Difference]: Finished difference Result 718 states and 843 transitions. [2019-10-07 14:59:20,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:59:20,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-07 14:59:20,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:20,577 INFO L225 Difference]: With dead ends: 718 [2019-10-07 14:59:20,577 INFO L226 Difference]: Without dead ends: 454 [2019-10-07 14:59:20,582 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 14:59:20,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-10-07 14:59:20,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2019-10-07 14:59:20,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-10-07 14:59:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 537 transitions. [2019-10-07 14:59:20,652 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 537 transitions. Word has length 137 [2019-10-07 14:59:20,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:20,652 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 537 transitions. [2019-10-07 14:59:20,653 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:59:20,653 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 537 transitions. [2019-10-07 14:59:20,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 14:59:20,659 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:20,659 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:20,659 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:20,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:20,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1122759557, now seen corresponding path program 1 times [2019-10-07 14:59:20,660 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:20,660 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:20,660 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:20,660 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:20,973 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 14:59:20,973 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:20,973 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:20,973 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:59:20,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:59:20,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:59:20,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:59:20,976 INFO L87 Difference]: Start difference. First operand 454 states and 537 transitions. Second operand 3 states. [2019-10-07 14:59:21,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:21,014 INFO L93 Difference]: Finished difference Result 894 states and 1087 transitions. [2019-10-07 14:59:21,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:59:21,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-07 14:59:21,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:21,019 INFO L225 Difference]: With dead ends: 894 [2019-10-07 14:59:21,019 INFO L226 Difference]: Without dead ends: 498 [2019-10-07 14:59:21,021 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 14:59:21,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2019-10-07 14:59:21,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 497. [2019-10-07 14:59:21,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2019-10-07 14:59:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 611 transitions. [2019-10-07 14:59:21,048 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 611 transitions. Word has length 149 [2019-10-07 14:59:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:21,049 INFO L462 AbstractCegarLoop]: Abstraction has 497 states and 611 transitions. [2019-10-07 14:59:21,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:59:21,049 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 611 transitions. [2019-10-07 14:59:21,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 14:59:21,056 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:21,057 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:21,057 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:21,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:21,058 INFO L82 PathProgramCache]: Analyzing trace with hash 318135744, now seen corresponding path program 1 times [2019-10-07 14:59:21,059 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:21,059 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:21,059 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:21,060 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:21,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:21,765 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 14:59:21,766 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:21,766 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:21,766 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:59:21,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:59:21,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:59:21,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:59:21,769 INFO L87 Difference]: Start difference. First operand 497 states and 611 transitions. Second operand 23 states. [2019-10-07 14:59:33,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:33,635 INFO L93 Difference]: Finished difference Result 1062 states and 1285 transitions. [2019-10-07 14:59:33,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:59:33,636 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 150 [2019-10-07 14:59:33,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:33,644 INFO L225 Difference]: With dead ends: 1062 [2019-10-07 14:59:33,644 INFO L226 Difference]: Without dead ends: 804 [2019-10-07 14:59:33,646 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=1855, Unknown=0, NotChecked=0, Total=2070 [2019-10-07 14:59:33,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-10-07 14:59:33,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 795. [2019-10-07 14:59:33,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2019-10-07 14:59:33,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 970 transitions. [2019-10-07 14:59:33,756 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 970 transitions. Word has length 150 [2019-10-07 14:59:33,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:33,758 INFO L462 AbstractCegarLoop]: Abstraction has 795 states and 970 transitions. [2019-10-07 14:59:33,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:59:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 970 transitions. [2019-10-07 14:59:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 14:59:33,762 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:33,762 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:33,763 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:33,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:33,763 INFO L82 PathProgramCache]: Analyzing trace with hash -354099770, now seen corresponding path program 1 times [2019-10-07 14:59:33,763 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:33,764 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:33,764 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:33,764 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:34,311 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 14:59:34,312 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:34,312 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:34,312 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-07 14:59:34,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-07 14:59:34,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-07 14:59:34,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:59:34,314 INFO L87 Difference]: Start difference. First operand 795 states and 970 transitions. Second operand 25 states. [2019-10-07 14:59:36,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:36,541 INFO L93 Difference]: Finished difference Result 902 states and 1095 transitions. [2019-10-07 14:59:36,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-07 14:59:36,545 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 156 [2019-10-07 14:59:36,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:36,551 INFO L225 Difference]: With dead ends: 902 [2019-10-07 14:59:36,551 INFO L226 Difference]: Without dead ends: 895 [2019-10-07 14:59:36,553 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=2317, Unknown=0, NotChecked=0, Total=2550 [2019-10-07 14:59:36,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2019-10-07 14:59:36,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 888. [2019-10-07 14:59:36,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2019-10-07 14:59:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1080 transitions. [2019-10-07 14:59:36,603 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1080 transitions. Word has length 156 [2019-10-07 14:59:36,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:36,604 INFO L462 AbstractCegarLoop]: Abstraction has 888 states and 1080 transitions. [2019-10-07 14:59:36,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-07 14:59:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1080 transitions. [2019-10-07 14:59:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2019-10-07 14:59:36,611 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:36,611 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:36,612 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:36,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:36,612 INFO L82 PathProgramCache]: Analyzing trace with hash -944503550, now seen corresponding path program 1 times [2019-10-07 14:59:36,612 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:36,612 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:36,613 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:36,613 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 14:59:36,947 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:36,948 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:36,948 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:59:36,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:59:36,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:59:36,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:59:36,949 INFO L87 Difference]: Start difference. First operand 888 states and 1080 transitions. Second operand 7 states. [2019-10-07 14:59:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:39,360 INFO L93 Difference]: Finished difference Result 1858 states and 2215 transitions. [2019-10-07 14:59:39,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:59:39,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 282 [2019-10-07 14:59:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:39,375 INFO L225 Difference]: With dead ends: 1858 [2019-10-07 14:59:39,375 INFO L226 Difference]: Without dead ends: 1361 [2019-10-07 14:59:39,378 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:59:39,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2019-10-07 14:59:39,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1329. [2019-10-07 14:59:39,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1329 states. [2019-10-07 14:59:39,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1594 transitions. [2019-10-07 14:59:39,467 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1594 transitions. Word has length 282 [2019-10-07 14:59:39,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:39,471 INFO L462 AbstractCegarLoop]: Abstraction has 1329 states and 1594 transitions. [2019-10-07 14:59:39,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:59:39,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1594 transitions. [2019-10-07 14:59:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-07 14:59:39,480 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:39,481 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:39,481 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:39,482 INFO L82 PathProgramCache]: Analyzing trace with hash -166759129, now seen corresponding path program 1 times [2019-10-07 14:59:39,482 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:39,482 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:39,482 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:39,482 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:39,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:59:40,379 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:40,379 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:40,379 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-10-07 14:59:40,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-07 14:59:40,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-07 14:59:40,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2019-10-07 14:59:40,381 INFO L87 Difference]: Start difference. First operand 1329 states and 1594 transitions. Second operand 30 states. [2019-10-07 14:59:56,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:56,148 INFO L93 Difference]: Finished difference Result 3706 states and 4768 transitions. [2019-10-07 14:59:56,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2019-10-07 14:59:56,148 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 296 [2019-10-07 14:59:56,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:56,166 INFO L225 Difference]: With dead ends: 3706 [2019-10-07 14:59:56,166 INFO L226 Difference]: Without dead ends: 2733 [2019-10-07 14:59:56,173 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1706 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=482, Invalid=7000, Unknown=0, NotChecked=0, Total=7482 [2019-10-07 14:59:56,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2019-10-07 14:59:56,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2647. [2019-10-07 14:59:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2647 states. [2019-10-07 14:59:56,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 3288 transitions. [2019-10-07 14:59:56,332 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 3288 transitions. Word has length 296 [2019-10-07 14:59:56,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:56,333 INFO L462 AbstractCegarLoop]: Abstraction has 2647 states and 3288 transitions. [2019-10-07 14:59:56,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-10-07 14:59:56,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 3288 transitions. [2019-10-07 14:59:56,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-10-07 14:59:56,348 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:56,349 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:56,349 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:56,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:56,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1494865235, now seen corresponding path program 1 times [2019-10-07 14:59:56,350 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:56,351 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:56,351 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:56,351 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:56,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:59:56,703 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:56,703 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:56,704 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:59:56,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:59:56,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:59:56,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:59:56,707 INFO L87 Difference]: Start difference. First operand 2647 states and 3288 transitions. Second operand 10 states. [2019-10-07 14:59:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:56,865 INFO L93 Difference]: Finished difference Result 4997 states and 6404 transitions. [2019-10-07 14:59:56,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:59:56,866 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 300 [2019-10-07 14:59:56,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:56,882 INFO L225 Difference]: With dead ends: 4997 [2019-10-07 14:59:56,882 INFO L226 Difference]: Without dead ends: 2647 [2019-10-07 14:59:56,895 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:59:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2019-10-07 14:59:57,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2647. [2019-10-07 14:59:57,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2647 states. [2019-10-07 14:59:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 3280 transitions. [2019-10-07 14:59:57,058 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 3280 transitions. Word has length 300 [2019-10-07 14:59:57,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:57,059 INFO L462 AbstractCegarLoop]: Abstraction has 2647 states and 3280 transitions. [2019-10-07 14:59:57,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:59:57,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 3280 transitions. [2019-10-07 14:59:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2019-10-07 14:59:57,072 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:57,073 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:57,073 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:57,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:57,073 INFO L82 PathProgramCache]: Analyzing trace with hash -553168302, now seen corresponding path program 1 times [2019-10-07 14:59:57,074 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:57,074 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:57,074 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:57,074 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:57,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-07 14:59:57,844 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:57,844 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:59:57,844 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 14:59:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:58,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 3894 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:59:58,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:59:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-07 14:59:58,771 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:59:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:59:59,701 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:59:59,737 INFO L162 IcfgInterpreter]: Started Sifa with 249 locations of interest [2019-10-07 14:59:59,738 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:59:59,745 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:59:59,752 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:59:59,753 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:01:15,070 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 709 [2019-10-07 15:01:20,296 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 341 DAG size of output: 277 [2019-10-07 15:01:20,792 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 756 [2019-10-07 15:01:21,121 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 756 [2019-10-07 15:01:21,357 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 756 [2019-10-07 15:01:21,519 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:01:22,287 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1056 [2019-10-07 15:01:23,018 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1056 [2019-10-07 15:01:23,729 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1056 [2019-10-07 15:01:23,870 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:01:24,589 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1056 [2019-10-07 15:01:25,975 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1058 DAG size of output: 1056 [2019-10-07 15:01:26,622 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 1056 [2019-10-07 15:01:26,836 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:01:27,479 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1056 [2019-10-07 15:01:28,163 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1056 [2019-10-07 15:01:28,832 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 1056 [2019-10-07 15:01:28,953 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:01:29,659 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1056 [2019-10-07 15:01:29,688 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 571 for LOIs [2019-10-07 15:01:30,083 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 673 [2019-10-07 15:01:30,220 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 673 [2019-10-07 15:01:30,344 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:01:30,816 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 15:01:30,818 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1120 for LOIs [2019-10-07 15:01:31,488 WARN L191 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:32,106 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:32,367 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:33,471 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:34,113 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:34,798 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:35,142 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:36,271 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:36,945 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:37,570 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:37,905 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:38,954 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:40,680 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1330 DAG size of output: 1120 [2019-10-07 15:01:41,302 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:41,586 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:42,644 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:43,281 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:43,908 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:44,163 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:45,252 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:45,876 WARN L191 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:46,500 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:46,761 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:47,815 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:48,443 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:49,099 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:49,474 WARN L191 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:50,523 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:51,145 WARN L191 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:51,766 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:52,019 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:53,052 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:53,689 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:54,310 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:54,564 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:55,623 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:56,245 WARN L191 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:56,872 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:57,126 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:01:58,182 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:01:58,797 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:59,410 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:01:59,662 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:00,703 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:01,316 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:02:01,931 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:02:02,183 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:03,230 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:03,848 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:02:04,462 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 15:02:04,715 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:05,756 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:06,841 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:07,887 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:08,152 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:09,183 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:11,106 WARN L191 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1330 DAG size of output: 1328 [2019-10-07 15:02:12,163 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:12,432 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:13,467 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:14,507 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:15,553 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:15,805 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:16,840 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:17,941 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:02:18,964 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:02:19,218 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:02:20,249 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:02:21,982 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:02:23,028 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:02:23,296 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:02:24,347 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:02:25,387 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:02:26,431 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:02:26,684 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:02:27,716 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:02:28,763 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1337 [2019-10-07 15:02:29,802 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1337 [2019-10-07 15:02:30,060 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:02:31,101 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1337 [2019-10-07 15:02:32,145 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1339 [2019-10-07 15:02:33,192 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1339 [2019-10-07 15:02:33,453 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:02:34,496 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1339 [2019-10-07 15:02:36,705 WARN L191 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 1330 DAG size of output: 1328 [2019-10-07 15:02:37,727 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:37,999 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:39,034 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:40,924 WARN L191 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1330 DAG size of output: 1328 [2019-10-07 15:02:41,950 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:42,238 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:43,246 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:44,275 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:45,304 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:45,555 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:46,584 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:48,638 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 1330 DAG size of output: 1328 [2019-10-07 15:02:49,671 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:49,930 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:50,962 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:52,864 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1330 DAG size of output: 1328 [2019-10-07 15:02:53,887 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:54,161 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:55,187 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:56,215 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:57,245 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:57,495 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 15:02:58,527 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1328 [2019-10-07 15:02:59,619 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:03:00,650 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:03:00,908 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:03:01,938 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:03:02,982 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:03:04,014 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:03:04,279 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:03:05,320 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:03:06,367 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:03:07,412 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:03:07,666 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:03:08,702 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 15:03:10,587 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1339 DAG size of output: 1337 [2019-10-07 15:03:11,624 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1337 [2019-10-07 15:03:11,919 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:03:12,959 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1337 [2019-10-07 15:03:14,842 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1341 DAG size of output: 1339 [2019-10-07 15:03:15,888 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1339 [2019-10-07 15:03:16,159 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:03:17,215 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1339 [2019-10-07 15:03:17,479 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:03:17,481 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:03:17,492 INFO L168 Benchmark]: Toolchain (without parser) took 245012.27 ms. Allocated memory was 138.4 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 98.7 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2019-10-07 15:03:17,493 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:03:17,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1125.09 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.5 MB in the beginning and 129.2 MB in the end (delta: -30.7 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:17,502 INFO L168 Benchmark]: Boogie Preprocessor took 260.19 ms. Allocated memory is still 202.4 MB. Free memory was 129.2 MB in the beginning and 119.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:17,502 INFO L168 Benchmark]: RCFGBuilder took 5039.81 ms. Allocated memory was 202.4 MB in the beginning and 297.8 MB in the end (delta: 95.4 MB). Free memory was 119.9 MB in the beginning and 79.6 MB in the end (delta: 40.2 MB). Peak memory consumption was 135.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:17,503 INFO L168 Benchmark]: TraceAbstraction took 238574.54 ms. Allocated memory was 297.8 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 79.6 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 914.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:17,506 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 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1125.09 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.5 MB in the beginning and 129.2 MB in the end (delta: -30.7 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 260.19 ms. Allocated memory is still 202.4 MB. Free memory was 129.2 MB in the beginning and 119.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5039.81 ms. Allocated memory was 202.4 MB in the beginning and 297.8 MB in the end (delta: 95.4 MB). Free memory was 119.9 MB in the beginning and 79.6 MB in the end (delta: 40.2 MB). Peak memory consumption was 135.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238574.54 ms. Allocated memory was 297.8 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 79.6 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 914.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...