/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:22:21,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:22:21,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:22:21,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:22:21,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:22:21,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:22:21,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:22:21,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:22:21,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:22:21,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:22:21,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:22:21,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:22:21,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:22:21,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:22:21,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:22:21,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:22:21,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:22:21,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:22:21,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:22:21,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:22:21,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:22:21,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:22:21,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:22:21,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:22:21,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:22:21,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:22:21,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:22:21,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:22:21,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:22:21,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:22:21,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:22:21,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:22:21,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:22:21,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:22:21,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:22:21,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:22:21,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:22:21,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:22:21,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:22:21,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:22:21,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:22:21,438 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 [2019-11-07 04:22:21,452 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:22:21,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:22:21,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:22:21,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:22:21,454 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:22:21,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:22:21,455 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:22:21,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:22:21,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:22:21,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:22:21,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:22:21,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:22:21,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:22:21,457 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:22:21,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:22:21,457 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:22:21,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:22:21,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:22:21,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:22:21,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:22:21,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:22:21,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:22:21,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:22:21,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:22:21,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:22:21,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:22:21,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:22:21,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:22:21,459 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 [2019-11-07 04:22:21,730 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:22:21,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:22:21,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:22:21,748 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:22:21,748 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:22:21,749 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c [2019-11-07 04:22:21,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a16e872d/47734cda150640ebaa96610704432f47/FLAGc833bf1c7 [2019-11-07 04:22:22,406 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:22:22,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c [2019-11-07 04:22:22,429 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a16e872d/47734cda150640ebaa96610704432f47/FLAGc833bf1c7 [2019-11-07 04:22:22,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a16e872d/47734cda150640ebaa96610704432f47 [2019-11-07 04:22:22,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:22:22,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:22:22,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:22:22,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:22:22,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:22:22,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:22:22" (1/1) ... [2019-11-07 04:22:22,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637e353a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:22, skipping insertion in model container [2019-11-07 04:22:22,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:22:22" (1/1) ... [2019-11-07 04:22:22,734 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:22:22,886 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:22:23,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:22:23,759 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:22:23,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:22:24,048 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:22:24,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24 WrapperNode [2019-11-07 04:22:24,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:22:24,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:22:24,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:22:24,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:22:24,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24" (1/1) ... [2019-11-07 04:22:24,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24" (1/1) ... [2019-11-07 04:22:24,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24" (1/1) ... [2019-11-07 04:22:24,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24" (1/1) ... [2019-11-07 04:22:24,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24" (1/1) ... [2019-11-07 04:22:24,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24" (1/1) ... [2019-11-07 04:22:24,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24" (1/1) ... [2019-11-07 04:22:24,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:22:24,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:22:24,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:22:24,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:22:24,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24" (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 [2019-11-07 04:22:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:22:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:22:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:22:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:22:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:22:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:22:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:22:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:22:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:22:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:22:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:22:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:22:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:22:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:22:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:22:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:22:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:22:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:22:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:22:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:22:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:22:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:22:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:22:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:22:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:22:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:22:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:22:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:22:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:22:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:22:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:22:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:22:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:22:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:22:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:22:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:22:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:22:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:22:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:22:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:22:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:22:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:22:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:22:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:22:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:22:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:22:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:22:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:22:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:22:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:22:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:22:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:22:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:22:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:22:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:22:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:22:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:22:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:22:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:22:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 04:22:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:22:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:22:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:22:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:22:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:22:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:22:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:22:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:22:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:22:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 04:22:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:22:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:22:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:22:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:22:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:22:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:22:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:22:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:22:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:22:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:22:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:22:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:22:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:22:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:22:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:22:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:22:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:22:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:22:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-11-07 04:22:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:22:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:22:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:22:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:22:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:22:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:22:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:22:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:22:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:22:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:22:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:22:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:22:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:22:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:22:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:22:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:22:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:22:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:22:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:22:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:22:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:22:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:22:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:22:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:22:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:22:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:22:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:22:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:22:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:22:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:22:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:22:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:22:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:22:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:22:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:22:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:22:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:22:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:22:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:22:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:22:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:22:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:22:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:22:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:22:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:22:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:22:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:22:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:22:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:22:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:22:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:22:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:22:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:22:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:22:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:22:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:22:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:22:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:22:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:22:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:22:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:22:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:22:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:22:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:22:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:22:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:22:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:22:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:22:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:22:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:22:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:22:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:22:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:22:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:22:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:22:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:22:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:22:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:22:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:22:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:22:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:22:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:22:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:22:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:22:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:22:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:22:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:22:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:22:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:22:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:22:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:22:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:22:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:22:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:22:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:22:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:22:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:22:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:22:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:22:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:22:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:22:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:22:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:22:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:22:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:22:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:22:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:22:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:22:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:22:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:22:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:22:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 04:22:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:22:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:22:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:22:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:22:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:22:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:22:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:22:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:22:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:22:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:22:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:22:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:22:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:22:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:22:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:22:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:22:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:22:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-11-07 04:22:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:22:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:22:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 04:22:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:22:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:22:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:22:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:22:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:22:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:22:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:22:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:22:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:22:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:22:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:22:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:22:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:22:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:22:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:22:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:22:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:22:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:22:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:22:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:22:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:22:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:22:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:22:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:22:28,823 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:22:28,823 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:22:28,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:22:28 BoogieIcfgContainer [2019-11-07 04:22:28,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:22:28,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:22:28,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:22:28,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:22:28,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:22:22" (1/3) ... [2019-11-07 04:22:28,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eeadde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:22:28, skipping insertion in model container [2019-11-07 04:22:28,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:24" (2/3) ... [2019-11-07 04:22:28,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eeadde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:22:28, skipping insertion in model container [2019-11-07 04:22:28,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:22:28" (3/3) ... [2019-11-07 04:22:28,832 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product32.cil.c [2019-11-07 04:22:28,842 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:22:28,851 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:22:28,860 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:22:28,888 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:22:28,888 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:22:28,888 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:22:28,888 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:22:28,889 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:22:28,889 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:22:28,889 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:22:28,889 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:22:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states. [2019-11-07 04:22:28,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-07 04:22:28,942 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:22:28,944 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:22:28,946 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:22:28,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:22:28,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1438729519, now seen corresponding path program 1 times [2019-11-07 04:22:28,963 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:22:28,963 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047871442] [2019-11-07 04:22:28,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:22:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:22:29,729 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:22:29,730 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047871442] [2019-11-07 04:22:29,731 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:22:29,731 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:22:29,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047002110] [2019-11-07 04:22:29,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:22:29,742 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:22:29,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:22:29,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:22:29,759 INFO L87 Difference]: Start difference. First operand 444 states. Second operand 2 states. [2019-11-07 04:22:29,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:22:29,850 INFO L93 Difference]: Finished difference Result 628 states and 750 transitions. [2019-11-07 04:22:29,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:22:29,852 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-11-07 04:22:29,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:22:29,885 INFO L225 Difference]: With dead ends: 628 [2019-11-07 04:22:29,886 INFO L226 Difference]: Without dead ends: 396 [2019-11-07 04:22:29,895 INFO L630 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 [2019-11-07 04:22:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-11-07 04:22:30,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2019-11-07 04:22:30,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-11-07 04:22:30,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 469 transitions. [2019-11-07 04:22:30,025 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 469 transitions. Word has length 136 [2019-11-07 04:22:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:22:30,027 INFO L462 AbstractCegarLoop]: Abstraction has 396 states and 469 transitions. [2019-11-07 04:22:30,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:22:30,027 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 469 transitions. [2019-11-07 04:22:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-11-07 04:22:30,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:22:30,034 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:22:30,034 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:22:30,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:22:30,035 INFO L82 PathProgramCache]: Analyzing trace with hash -411128334, now seen corresponding path program 1 times [2019-11-07 04:22:30,035 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:22:30,035 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940864113] [2019-11-07 04:22:30,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:22:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:22:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:22:30,253 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940864113] [2019-11-07 04:22:30,253 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:22:30,253 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:22:30,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126846962] [2019-11-07 04:22:30,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:22:30,258 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:22:30,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:22:30,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:22:30,259 INFO L87 Difference]: Start difference. First operand 396 states and 469 transitions. Second operand 3 states. [2019-11-07 04:22:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:22:30,338 INFO L93 Difference]: Finished difference Result 613 states and 718 transitions. [2019-11-07 04:22:30,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:22:30,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-11-07 04:22:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:22:30,352 INFO L225 Difference]: With dead ends: 613 [2019-11-07 04:22:30,353 INFO L226 Difference]: Without dead ends: 398 [2019-11-07 04:22:30,359 INFO L630 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 [2019-11-07 04:22:30,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-11-07 04:22:30,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2019-11-07 04:22:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-11-07 04:22:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 471 transitions. [2019-11-07 04:22:30,412 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 471 transitions. Word has length 137 [2019-11-07 04:22:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:22:30,412 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 471 transitions. [2019-11-07 04:22:30,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:22:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 471 transitions. [2019-11-07 04:22:30,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-07 04:22:30,421 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:22:30,422 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:22:30,423 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:22:30,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:22:30,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1440135942, now seen corresponding path program 1 times [2019-11-07 04:22:30,424 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:22:30,424 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883831281] [2019-11-07 04:22:30,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:22:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:22:30,652 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:22:30,652 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883831281] [2019-11-07 04:22:30,652 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:22:30,653 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:22:30,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669611264] [2019-11-07 04:22:30,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:22:30,656 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:22:30,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:22:30,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:22:30,657 INFO L87 Difference]: Start difference. First operand 398 states and 471 transitions. Second operand 3 states. [2019-11-07 04:22:30,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:22:30,713 INFO L93 Difference]: Finished difference Result 780 states and 952 transitions. [2019-11-07 04:22:30,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:22:30,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-11-07 04:22:30,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:22:30,721 INFO L225 Difference]: With dead ends: 780 [2019-11-07 04:22:30,722 INFO L226 Difference]: Without dead ends: 440 [2019-11-07 04:22:30,724 INFO L630 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 [2019-11-07 04:22:30,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-11-07 04:22:30,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2019-11-07 04:22:30,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2019-11-07 04:22:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 542 transitions. [2019-11-07 04:22:30,760 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 542 transitions. Word has length 146 [2019-11-07 04:22:30,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:22:30,761 INFO L462 AbstractCegarLoop]: Abstraction has 439 states and 542 transitions. [2019-11-07 04:22:30,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:22:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 542 transitions. [2019-11-07 04:22:30,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-11-07 04:22:30,768 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:22:30,769 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:22:30,770 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:22:30,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:22:30,770 INFO L82 PathProgramCache]: Analyzing trace with hash -2062969560, now seen corresponding path program 1 times [2019-11-07 04:22:30,771 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:22:30,771 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914495247] [2019-11-07 04:22:30,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:22:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:22:31,065 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:22:31,066 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914495247] [2019-11-07 04:22:31,066 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:22:31,067 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:22:31,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907324854] [2019-11-07 04:22:31,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:22:31,068 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:22:31,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:22:31,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:22:31,068 INFO L87 Difference]: Start difference. First operand 439 states and 542 transitions. Second operand 3 states. [2019-11-07 04:22:31,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:22:31,103 INFO L93 Difference]: Finished difference Result 900 states and 1160 transitions. [2019-11-07 04:22:31,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:22:31,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-11-07 04:22:31,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:22:31,108 INFO L225 Difference]: With dead ends: 900 [2019-11-07 04:22:31,108 INFO L226 Difference]: Without dead ends: 519 [2019-11-07 04:22:31,110 INFO L630 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 [2019-11-07 04:22:31,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2019-11-07 04:22:31,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 518. [2019-11-07 04:22:31,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2019-11-07 04:22:31,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 678 transitions. [2019-11-07 04:22:31,139 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 678 transitions. Word has length 147 [2019-11-07 04:22:31,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:22:31,140 INFO L462 AbstractCegarLoop]: Abstraction has 518 states and 678 transitions. [2019-11-07 04:22:31,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:22:31,140 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 678 transitions. [2019-11-07 04:22:31,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-07 04:22:31,145 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:22:31,145 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:22:31,145 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:22:31,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:22:31,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1615965150, now seen corresponding path program 1 times [2019-11-07 04:22:31,146 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:22:31,147 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532430232] [2019-11-07 04:22:31,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:22:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:22:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:22:31,721 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532430232] [2019-11-07 04:22:31,722 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:22:31,722 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-11-07 04:22:31,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624642521] [2019-11-07 04:22:31,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-07 04:22:31,723 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:22:31,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-07 04:22:31,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2019-11-07 04:22:31,724 INFO L87 Difference]: Start difference. First operand 518 states and 678 transitions. Second operand 23 states. [2019-11-07 04:22:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:22:45,939 INFO L93 Difference]: Finished difference Result 985 states and 1234 transitions. [2019-11-07 04:22:45,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-07 04:22:45,940 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 150 [2019-11-07 04:22:45,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:22:45,946 INFO L225 Difference]: With dead ends: 985 [2019-11-07 04:22:45,946 INFO L226 Difference]: Without dead ends: 776 [2019-11-07 04:22:45,948 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=1855, Unknown=0, NotChecked=0, Total=2070 [2019-11-07 04:22:45,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2019-11-07 04:22:45,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 767. [2019-11-07 04:22:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2019-11-07 04:22:45,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 978 transitions. [2019-11-07 04:22:45,994 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 978 transitions. Word has length 150 [2019-11-07 04:22:45,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:22:45,995 INFO L462 AbstractCegarLoop]: Abstraction has 767 states and 978 transitions. [2019-11-07 04:22:45,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-07 04:22:45,995 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 978 transitions. [2019-11-07 04:22:45,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 04:22:45,998 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:22:45,999 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:22:45,999 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:22:45,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:22:45,999 INFO L82 PathProgramCache]: Analyzing trace with hash 48174161, now seen corresponding path program 1 times [2019-11-07 04:22:46,000 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:22:46,000 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020475374] [2019-11-07 04:22:46,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:22:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:22:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:22:46,768 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020475374] [2019-11-07 04:22:46,768 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:22:46,768 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-11-07 04:22:46,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546445517] [2019-11-07 04:22:46,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 04:22:46,769 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:22:46,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 04:22:46,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:22:46,771 INFO L87 Difference]: Start difference. First operand 767 states and 978 transitions. Second operand 25 states. [2019-11-07 04:22:50,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:22:50,585 INFO L93 Difference]: Finished difference Result 874 states and 1103 transitions. [2019-11-07 04:22:50,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-07 04:22:50,586 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 156 [2019-11-07 04:22:50,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:22:50,595 INFO L225 Difference]: With dead ends: 874 [2019-11-07 04:22:50,595 INFO L226 Difference]: Without dead ends: 867 [2019-11-07 04:22:50,597 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=233, Invalid=2317, Unknown=0, NotChecked=0, Total=2550 [2019-11-07 04:22:50,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2019-11-07 04:22:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 860. [2019-11-07 04:22:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 860 states. [2019-11-07 04:22:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1088 transitions. [2019-11-07 04:22:50,642 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1088 transitions. Word has length 156 [2019-11-07 04:22:50,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:22:50,643 INFO L462 AbstractCegarLoop]: Abstraction has 860 states and 1088 transitions. [2019-11-07 04:22:50,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-07 04:22:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1088 transitions. [2019-11-07 04:22:50,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-11-07 04:22:50,650 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:22:50,650 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:22:50,651 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:22:50,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:22:50,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1627009428, now seen corresponding path program 1 times [2019-11-07 04:22:50,651 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:22:50,652 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197537689] [2019-11-07 04:22:50,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:22:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:22:50,975 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:22:50,976 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197537689] [2019-11-07 04:22:50,976 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:22:50,976 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 04:22:50,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476426421] [2019-11-07 04:22:50,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:22:50,977 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:22:50,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:22:50,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:22:50,980 INFO L87 Difference]: Start difference. First operand 860 states and 1088 transitions. Second operand 11 states. [2019-11-07 04:22:55,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:22:55,021 INFO L93 Difference]: Finished difference Result 1622 states and 1964 transitions. [2019-11-07 04:22:55,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:22:55,022 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 273 [2019-11-07 04:22:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:22:55,029 INFO L225 Difference]: With dead ends: 1622 [2019-11-07 04:22:55,030 INFO L226 Difference]: Without dead ends: 1223 [2019-11-07 04:22:55,032 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:22:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2019-11-07 04:22:55,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1197. [2019-11-07 04:22:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2019-11-07 04:22:55,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1473 transitions. [2019-11-07 04:22:55,101 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1473 transitions. Word has length 273 [2019-11-07 04:22:55,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:22:55,102 INFO L462 AbstractCegarLoop]: Abstraction has 1197 states and 1473 transitions. [2019-11-07 04:22:55,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:22:55,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1473 transitions. [2019-11-07 04:22:55,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-11-07 04:22:55,109 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:22:55,110 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:22:55,110 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:22:55,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:22:55,110 INFO L82 PathProgramCache]: Analyzing trace with hash -2010622669, now seen corresponding path program 1 times [2019-11-07 04:22:55,110 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:22:55,111 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059015923] [2019-11-07 04:22:55,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:22:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:22:56,151 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-11-07 04:22:56,151 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059015923] [2019-11-07 04:22:56,152 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:22:56,152 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-11-07 04:22:56,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967936984] [2019-11-07 04:22:56,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-07 04:22:56,155 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:22:56,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-07 04:22:56,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2019-11-07 04:22:56,156 INFO L87 Difference]: Start difference. First operand 1197 states and 1473 transitions. Second operand 30 states.