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_spec9_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:18:11,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:18:11,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:18:11,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:18:11,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:18:11,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:18:11,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:18:11,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:18:11,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:18:11,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:18:11,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:18:11,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:18:11,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:18:11,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:18:11,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:18:11,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:18:11,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:18:11,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:18:11,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:18:11,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:18:11,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:18:11,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:18:11,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:18:11,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:18:11,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:18:11,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:18:11,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:18:11,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:18:11,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:18:11,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:18:11,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:18:11,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:18:11,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:18:11,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:18:11,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:18:11,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:18:11,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:18:11,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:18:11,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:18:11,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:18:11,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:18:11,088 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 [2019-10-15 03:18:11,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:18:11,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:18:11,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:18:11,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:18:11,114 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:18:11,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:18:11,114 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:18:11,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:18:11,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:18:11,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:18:11,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:18:11,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:18:11,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:18:11,116 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:18:11,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:18:11,117 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:18:11,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:18:11,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:18:11,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:18:11,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:18:11,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:18:11,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:18:11,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:18:11,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:18:11,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:18:11,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:18:11,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:18:11,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:18:11,119 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 [2019-10-15 03:18:11,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:18:11,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:18:11,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:18:11,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:18:11,419 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:18:11,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product32.cil.c [2019-10-15 03:18:11,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1febf595/836c258df2a949b4985c4145e4e332c5/FLAG2d5277810 [2019-10-15 03:18:12,101 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:18:12,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product32.cil.c [2019-10-15 03:18:12,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1febf595/836c258df2a949b4985c4145e4e332c5/FLAG2d5277810 [2019-10-15 03:18:12,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1febf595/836c258df2a949b4985c4145e4e332c5 [2019-10-15 03:18:12,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:18:12,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:18:12,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:18:12,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:18:12,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:18:12,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:12" (1/1) ... [2019-10-15 03:18:12,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2feeb304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:12, skipping insertion in model container [2019-10-15 03:18:12,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:12" (1/1) ... [2019-10-15 03:18:12,338 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:18:12,421 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:18:13,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:18:13,186 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:18:13,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:18:13,405 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:18:13,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13 WrapperNode [2019-10-15 03:18:13,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:18:13,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:18:13,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:18:13,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:18:13,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:18:13,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:18:13,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:18:13,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:18:13,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (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 [2019-10-15 03:18:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:18:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:18:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:18:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:18:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:18:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:18:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:18:13,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:18:13,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:18:13,638 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:18:13,638 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:18:13,638 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:18:13,639 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:18:13,639 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:18:13,639 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:18:13,639 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:18:13,640 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:18:13,640 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:18:13,640 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:18:13,640 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:18:13,640 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:18:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:18:13,643 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:18:13,644 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:18:13,644 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:18:13,645 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:18:13,646 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:18:13,646 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:18:13,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:18:13,647 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:18:13,647 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:18:13,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:18:13,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:18:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:18:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:18:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:18:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:18:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:18:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:18:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:18:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:18:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:18:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:18:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:18:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:18:13,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:18:13,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:18:13,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:18:13,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:18:13,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:18:13,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:18:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:18:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:18:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:18:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:18:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:18:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:18:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:18:13,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:18:13,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:18:13,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:18:13,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:18:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:18:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:18:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:18:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:18:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:18:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:18:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:18:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:18:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:18:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:18:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:18:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:18:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:18:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:18:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:18:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:18:13,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:18:13,657 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:18:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:18:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:18:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:18:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:18:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:18:13,659 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:18:13,659 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:18:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:18:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:18:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:18:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:18:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:18:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:18:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:18:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:18:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:18:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:18:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:18:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:18:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:18:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:18:13,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:18:13,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:18:13,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:18:13,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:18:13,662 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:18:13,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:18:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:18:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:18:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:18:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:18:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:18:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:18:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:18:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:18:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:18:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:18:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:18:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:18:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:18:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:18:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:18:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:18:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:18:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:18:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:18:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:18:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:18:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:18:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:18:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:18:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:18:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:18:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:18:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:18:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:18:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:18:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:18:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:18:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:18:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:18:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:18:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:18:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:18:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:18:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:18:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:18:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:18:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:18:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:18:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:18:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:18:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:18:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:18:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:18:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:18:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:18:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:18:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:18:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:18:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:18:17,883 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:18:17,884 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:18:17,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:17 BoogieIcfgContainer [2019-10-15 03:18:17,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:18:17,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:18:17,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:18:17,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:18:17,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:18:12" (1/3) ... [2019-10-15 03:18:17,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2d408d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:17, skipping insertion in model container [2019-10-15 03:18:17,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (2/3) ... [2019-10-15 03:18:17,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2d408d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:17, skipping insertion in model container [2019-10-15 03:18:17,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:17" (3/3) ... [2019-10-15 03:18:17,893 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product32.cil.c [2019-10-15 03:18:17,902 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:18:17,911 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:18:17,922 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:18:17,952 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:18:17,952 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:18:17,952 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:18:17,952 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:18:17,953 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:18:17,953 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:18:17,953 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:18:17,953 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:18:18,044 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-10-15 03:18:18,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 03:18:18,061 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:18,062 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:18,064 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:18,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:18,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1585890697, now seen corresponding path program 1 times [2019-10-15 03:18:18,077 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:18,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610703487] [2019-10-15 03:18:18,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:18,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:18,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:18,734 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610703487] [2019-10-15 03:18:18,735 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:18,735 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:18:18,736 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341171768] [2019-10-15 03:18:18,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:18:18,741 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:18,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:18:18,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:18:18,757 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-10-15 03:18:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:18,833 INFO L93 Difference]: Finished difference Result 634 states and 756 transitions. [2019-10-15 03:18:18,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:18:18,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-15 03:18:18,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:18,856 INFO L225 Difference]: With dead ends: 634 [2019-10-15 03:18:18,856 INFO L226 Difference]: Without dead ends: 399 [2019-10-15 03:18:18,862 INFO L600 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 [2019-10-15 03:18:18,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-15 03:18:18,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-10-15 03:18:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-15 03:18:18,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-10-15 03:18:18,948 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 132 [2019-10-15 03:18:18,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:18,951 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-10-15 03:18:18,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:18:18,951 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-10-15 03:18:18,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-15 03:18:18,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:18,960 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:18:18,960 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:18,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:18,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1241260819, now seen corresponding path program 1 times [2019-10-15 03:18:18,961 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:18,961 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785791878] [2019-10-15 03:18:18,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:18,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:18,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:19,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785791878] [2019-10-15 03:18:19,218 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:19,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:19,219 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141356414] [2019-10-15 03:18:19,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:19,221 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:19,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:19,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:19,222 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-10-15 03:18:19,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:19,265 INFO L93 Difference]: Finished difference Result 619 states and 724 transitions. [2019-10-15 03:18:19,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:19,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-15 03:18:19,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:19,271 INFO L225 Difference]: With dead ends: 619 [2019-10-15 03:18:19,271 INFO L226 Difference]: Without dead ends: 401 [2019-10-15 03:18:19,274 INFO L600 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 [2019-10-15 03:18:19,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-15 03:18:19,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-10-15 03:18:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-15 03:18:19,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 474 transitions. [2019-10-15 03:18:19,307 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 474 transitions. Word has length 133 [2019-10-15 03:18:19,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:19,308 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 474 transitions. [2019-10-15 03:18:19,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:19,308 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 474 transitions. [2019-10-15 03:18:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-15 03:18:19,313 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:19,313 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:19,313 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:19,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:19,314 INFO L82 PathProgramCache]: Analyzing trace with hash 349190620, now seen corresponding path program 1 times [2019-10-15 03:18:19,314 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:19,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131931128] [2019-10-15 03:18:19,316 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:19,316 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:19,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:19,598 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131931128] [2019-10-15 03:18:19,598 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:19,598 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:19,599 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061526000] [2019-10-15 03:18:19,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:19,603 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:19,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:19,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:19,604 INFO L87 Difference]: Start difference. First operand 401 states and 474 transitions. Second operand 3 states. [2019-10-15 03:18:19,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:19,679 INFO L93 Difference]: Finished difference Result 786 states and 958 transitions. [2019-10-15 03:18:19,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:19,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-15 03:18:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:19,689 INFO L225 Difference]: With dead ends: 786 [2019-10-15 03:18:19,689 INFO L226 Difference]: Without dead ends: 443 [2019-10-15 03:18:19,693 INFO L600 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 [2019-10-15 03:18:19,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-15 03:18:19,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-10-15 03:18:19,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-15 03:18:19,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 545 transitions. [2019-10-15 03:18:19,758 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 545 transitions. Word has length 142 [2019-10-15 03:18:19,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:19,759 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 545 transitions. [2019-10-15 03:18:19,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:19,760 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 545 transitions. [2019-10-15 03:18:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-15 03:18:19,769 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:19,769 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:19,770 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:19,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:19,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1493521094, now seen corresponding path program 1 times [2019-10-15 03:18:19,773 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:19,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356497603] [2019-10-15 03:18:19,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:19,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:19,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:20,038 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356497603] [2019-10-15 03:18:20,038 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:20,039 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:20,039 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350299211] [2019-10-15 03:18:20,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:20,040 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:20,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:20,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:20,041 INFO L87 Difference]: Start difference. First operand 442 states and 545 transitions. Second operand 3 states. [2019-10-15 03:18:20,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:20,077 INFO L93 Difference]: Finished difference Result 906 states and 1166 transitions. [2019-10-15 03:18:20,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:20,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2019-10-15 03:18:20,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:20,083 INFO L225 Difference]: With dead ends: 906 [2019-10-15 03:18:20,083 INFO L226 Difference]: Without dead ends: 522 [2019-10-15 03:18:20,084 INFO L600 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 [2019-10-15 03:18:20,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2019-10-15 03:18:20,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 521. [2019-10-15 03:18:20,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2019-10-15 03:18:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 681 transitions. [2019-10-15 03:18:20,115 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 681 transitions. Word has length 143 [2019-10-15 03:18:20,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:20,117 INFO L462 AbstractCegarLoop]: Abstraction has 521 states and 681 transitions. [2019-10-15 03:18:20,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:20,117 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 681 transitions. [2019-10-15 03:18:20,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:18:20,121 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:20,121 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:20,121 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:20,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:20,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1234658247, now seen corresponding path program 1 times [2019-10-15 03:18:20,122 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:20,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475607920] [2019-10-15 03:18:20,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:18:20,340 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475607920] [2019-10-15 03:18:20,340 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:20,340 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:20,340 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497238159] [2019-10-15 03:18:20,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:20,341 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:20,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:20,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:20,342 INFO L87 Difference]: Start difference. First operand 521 states and 681 transitions. Second operand 3 states. [2019-10-15 03:18:20,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:20,404 INFO L93 Difference]: Finished difference Result 808 states and 1017 transitions. [2019-10-15 03:18:20,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:20,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 03:18:20,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:20,410 INFO L225 Difference]: With dead ends: 808 [2019-10-15 03:18:20,410 INFO L226 Difference]: Without dead ends: 602 [2019-10-15 03:18:20,411 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-15 03:18:20,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2019-10-15 03:18:20,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-10-15 03:18:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 772 transitions. [2019-10-15 03:18:20,450 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 772 transitions. Word has length 146 [2019-10-15 03:18:20,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:20,453 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 772 transitions. [2019-10-15 03:18:20,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 772 transitions. [2019-10-15 03:18:20,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-15 03:18:20,459 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:20,460 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:20,460 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:20,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:20,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1845528470, now seen corresponding path program 1 times [2019-10-15 03:18:20,461 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:20,461 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078781566] [2019-10-15 03:18:20,461 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,462 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:20,957 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:18:20,957 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078781566] [2019-10-15 03:18:20,957 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:20,958 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:18:20,958 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911423240] [2019-10-15 03:18:20,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:18:20,959 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:20,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:18:20,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:18:20,960 INFO L87 Difference]: Start difference. First operand 601 states and 772 transitions. Second operand 14 states. [2019-10-15 03:18:24,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:24,468 INFO L93 Difference]: Finished difference Result 1384 states and 1755 transitions. [2019-10-15 03:18:24,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:18:24,469 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 257 [2019-10-15 03:18:24,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:24,476 INFO L225 Difference]: With dead ends: 1384 [2019-10-15 03:18:24,476 INFO L226 Difference]: Without dead ends: 1120 [2019-10-15 03:18:24,478 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:18:24,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2019-10-15 03:18:24,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1109. [2019-10-15 03:18:24,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2019-10-15 03:18:24,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1438 transitions. [2019-10-15 03:18:24,539 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1438 transitions. Word has length 257 [2019-10-15 03:18:24,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:24,540 INFO L462 AbstractCegarLoop]: Abstraction has 1109 states and 1438 transitions. [2019-10-15 03:18:24,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:18:24,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1438 transitions. [2019-10-15 03:18:24,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-15 03:18:24,547 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:24,548 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:24,548 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:24,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:24,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1039461052, now seen corresponding path program 1 times [2019-10-15 03:18:24,549 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:24,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678165300] [2019-10-15 03:18:24,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:24,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:24,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:18:24,797 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678165300] [2019-10-15 03:18:24,798 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:24,799 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:24,799 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6964089] [2019-10-15 03:18:24,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:24,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:24,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:24,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:24,802 INFO L87 Difference]: Start difference. First operand 1109 states and 1438 transitions. Second operand 3 states. [2019-10-15 03:18:24,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:24,873 INFO L93 Difference]: Finished difference Result 2458 states and 3331 transitions. [2019-10-15 03:18:24,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:24,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-15 03:18:24,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:24,883 INFO L225 Difference]: With dead ends: 2458 [2019-10-15 03:18:24,883 INFO L226 Difference]: Without dead ends: 1407 [2019-10-15 03:18:24,886 INFO L600 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 [2019-10-15 03:18:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2019-10-15 03:18:24,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1405. [2019-10-15 03:18:24,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1405 states. [2019-10-15 03:18:24,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1946 transitions. [2019-10-15 03:18:24,961 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1946 transitions. Word has length 273 [2019-10-15 03:18:24,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:24,962 INFO L462 AbstractCegarLoop]: Abstraction has 1405 states and 1946 transitions. [2019-10-15 03:18:24,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:24,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1946 transitions. [2019-10-15 03:18:24,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-15 03:18:24,970 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:24,971 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:24,971 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:24,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:24,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1854298274, now seen corresponding path program 1 times [2019-10-15 03:18:24,972 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:24,972 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593754543] [2019-10-15 03:18:24,972 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:24,972 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:24,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:18:25,148 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593754543] [2019-10-15 03:18:25,148 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:25,148 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:25,148 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358233524] [2019-10-15 03:18:25,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:25,149 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:25,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:25,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:25,150 INFO L87 Difference]: Start difference. First operand 1405 states and 1946 transitions. Second operand 3 states. [2019-10-15 03:18:25,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:25,232 INFO L93 Difference]: Finished difference Result 3322 states and 4815 transitions. [2019-10-15 03:18:25,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:25,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-15 03:18:25,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:25,243 INFO L225 Difference]: With dead ends: 3322 [2019-10-15 03:18:25,244 INFO L226 Difference]: Without dead ends: 1975 [2019-10-15 03:18:25,248 INFO L600 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 [2019-10-15 03:18:25,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2019-10-15 03:18:25,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1973. [2019-10-15 03:18:25,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1973 states. [2019-10-15 03:18:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2914 transitions. [2019-10-15 03:18:25,402 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2914 transitions. Word has length 274 [2019-10-15 03:18:25,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:25,403 INFO L462 AbstractCegarLoop]: Abstraction has 1973 states and 2914 transitions. [2019-10-15 03:18:25,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:25,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2914 transitions. [2019-10-15 03:18:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-15 03:18:25,415 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:25,415 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:25,415 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:25,416 INFO L82 PathProgramCache]: Analyzing trace with hash -51417956, now seen corresponding path program 1 times [2019-10-15 03:18:25,416 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:25,416 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743985748] [2019-10-15 03:18:25,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:25,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:25,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:18:25,610 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743985748] [2019-10-15 03:18:25,611 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:25,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:25,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274808138] [2019-10-15 03:18:25,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:25,612 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:25,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:25,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:25,613 INFO L87 Difference]: Start difference. First operand 1973 states and 2914 transitions. Second operand 3 states. [2019-10-15 03:18:25,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:25,771 INFO L93 Difference]: Finished difference Result 4978 states and 7639 transitions. [2019-10-15 03:18:25,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:25,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-15 03:18:25,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:25,794 INFO L225 Difference]: With dead ends: 4978 [2019-10-15 03:18:25,795 INFO L226 Difference]: Without dead ends: 3063 [2019-10-15 03:18:25,802 INFO L600 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 [2019-10-15 03:18:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2019-10-15 03:18:25,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3061. [2019-10-15 03:18:25,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3061 states. [2019-10-15 03:18:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4754 transitions. [2019-10-15 03:18:26,006 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4754 transitions. Word has length 275 [2019-10-15 03:18:26,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:26,006 INFO L462 AbstractCegarLoop]: Abstraction has 3061 states and 4754 transitions. [2019-10-15 03:18:26,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4754 transitions. [2019-10-15 03:18:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2019-10-15 03:18:26,025 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:26,025 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:26,026 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:26,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:26,026 INFO L82 PathProgramCache]: Analyzing trace with hash -924111490, now seen corresponding path program 1 times [2019-10-15 03:18:26,026 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:26,027 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284046273] [2019-10-15 03:18:26,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:26,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:26,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:26,312 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:18:26,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284046273] [2019-10-15 03:18:26,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:26,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:26,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082771540] [2019-10-15 03:18:26,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:26,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:26,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:26,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:26,314 INFO L87 Difference]: Start difference. First operand 3061 states and 4754 transitions. Second operand 3 states. [2019-10-15 03:18:26,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:26,511 INFO L93 Difference]: Finished difference Result 8274 states and 13191 transitions. [2019-10-15 03:18:26,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:26,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2019-10-15 03:18:26,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:26,542 INFO L225 Difference]: With dead ends: 8274 [2019-10-15 03:18:26,542 INFO L226 Difference]: Without dead ends: 5271 [2019-10-15 03:18:26,554 INFO L600 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 [2019-10-15 03:18:26,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5271 states. [2019-10-15 03:18:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5271 to 5269. [2019-10-15 03:18:26,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5269 states. [2019-10-15 03:18:26,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 8434 transitions. [2019-10-15 03:18:26,877 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 8434 transitions. Word has length 276 [2019-10-15 03:18:26,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:26,877 INFO L462 AbstractCegarLoop]: Abstraction has 5269 states and 8434 transitions. [2019-10-15 03:18:26,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:26,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 8434 transitions. [2019-10-15 03:18:26,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-15 03:18:26,907 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:26,907 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:26,908 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:26,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:26,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1544987012, now seen corresponding path program 1 times [2019-10-15 03:18:26,908 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:26,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040885771] [2019-10-15 03:18:26,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:26,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:26,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:18:27,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040885771] [2019-10-15 03:18:27,141 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:27,141 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:27,141 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848791408] [2019-10-15 03:18:27,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:27,142 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:27,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:27,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:27,142 INFO L87 Difference]: Start difference. First operand 5269 states and 8434 transitions. Second operand 3 states. [2019-10-15 03:18:27,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:27,460 INFO L93 Difference]: Finished difference Result 14578 states and 23719 transitions. [2019-10-15 03:18:27,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:27,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-10-15 03:18:27,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:27,518 INFO L225 Difference]: With dead ends: 14578 [2019-10-15 03:18:27,518 INFO L226 Difference]: Without dead ends: 9367 [2019-10-15 03:18:27,539 INFO L600 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 [2019-10-15 03:18:27,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2019-10-15 03:18:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 9365. [2019-10-15 03:18:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9365 states. [2019-10-15 03:18:28,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 15218 transitions. [2019-10-15 03:18:28,051 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 15218 transitions. Word has length 277 [2019-10-15 03:18:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:28,052 INFO L462 AbstractCegarLoop]: Abstraction has 9365 states and 15218 transitions. [2019-10-15 03:18:28,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 15218 transitions. [2019-10-15 03:18:28,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-15 03:18:28,105 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:28,106 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:28,106 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:28,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:28,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1944124700, now seen corresponding path program 1 times [2019-10-15 03:18:28,107 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:28,107 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728291378] [2019-10-15 03:18:28,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:28,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:28,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:29,056 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:18:29,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728291378] [2019-10-15 03:18:29,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849309907] [2019-10-15 03:18:29,057 INFO L94 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 [2019-10-15 03:18:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:29,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:18:29,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:18:30,128 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-15 03:18:30,129 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:18:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:18:31,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1013143191] [2019-10-15 03:18:31,274 INFO L162 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-10-15 03:18:31,274 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:18:31,281 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:18:31,288 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:18:31,289 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs