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_spec27_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:13:08,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:13:08,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:13:08,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:13:08,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:13:08,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:13:08,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:13:08,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:13:08,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:13:08,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:13:08,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:13:08,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:13:08,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:13:08,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:13:08,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:13:08,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:13:08,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:13:08,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:13:08,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:13:08,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:13:08,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:13:08,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:13:08,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:13:08,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:13:08,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:13:08,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:13:08,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:13:08,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:13:08,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:13:08,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:13:08,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:13:08,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:13:08,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:13:08,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:13:08,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:13:08,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:13:08,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:13:08,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:13:08,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:13:08,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:13:08,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:13:08,468 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 03:13:08,484 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:13:08,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:13:08,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:13:08,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:13:08,486 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:13:08,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:13:08,486 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:13:08,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:13:08,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:13:08,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:13:08,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:13:08,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:13:08,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:13:08,488 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:13:08,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:13:08,488 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:13:08,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:13:08,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:13:08,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:13:08,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:13:08,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:13:08,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:13:08,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:13:08,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:13:08,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:13:08,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:13:08,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:13:08,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:13:08,491 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 03:13:08,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:13:08,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:13:08,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:13:08,806 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:13:08,807 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:13:08,808 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product23.cil.c [2019-10-15 03:13:08,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a12992dd/103b7fd96b154f72a8825ebe019c91e1/FLAGc7a351bfa [2019-10-15 03:13:09,534 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:13:09,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product23.cil.c [2019-10-15 03:13:09,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a12992dd/103b7fd96b154f72a8825ebe019c91e1/FLAGc7a351bfa [2019-10-15 03:13:09,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a12992dd/103b7fd96b154f72a8825ebe019c91e1 [2019-10-15 03:13:09,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:13:09,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:13:09,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:09,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:13:09,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:13:09,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:09" (1/1) ... [2019-10-15 03:13:09,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa637bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09, skipping insertion in model container [2019-10-15 03:13:09,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:09" (1/1) ... [2019-10-15 03:13:09,774 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:13:09,871 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:13:10,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:10,795 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:13:10,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:11,065 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:13:11,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11 WrapperNode [2019-10-15 03:13:11,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:11,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:13:11,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:13:11,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:13:11,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:13:11,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:13:11,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:13:11,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:13:11,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (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 03:13:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:13:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:13:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:13:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:13:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:13:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:13:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:13:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:13:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:13:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:13:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:13:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:13:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:13:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:13:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:13:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:13:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:13:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:13:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:13:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:13:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:13:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:13:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:13:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:13:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:13:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:13:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:13:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:13:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:13:11,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:13:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:13:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:13:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:13:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:13:11,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:13:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:13:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:13:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:13:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:13:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:13:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:13:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:13:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:13:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:13:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:13:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:13:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:13:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:13:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:13:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:13:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:13:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:13:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:13:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:13:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:13:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 03:13:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:13:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:13:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:13:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:13:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:13:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:13:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:13:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:13:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:13:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:13:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:13:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:13:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:13:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:13:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:13:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:13:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:13:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:13:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:13:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:13:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:13:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:13:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:13:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:13:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:13:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:13:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:13:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:13:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:13:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:13:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:13:11,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:13:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:13:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:13:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:13:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:13:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:13:11,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:13:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:13:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:13:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:13:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:11,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:13:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:13:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:13:11,432 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:13:11,433 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:13:11,433 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:13:11,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:13:11,433 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:13:11,433 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:13:11,433 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:13:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:13:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:13:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:13:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:13:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:13:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:13:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:13:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:13:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:13:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:13:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:13:11,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:13:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:13:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:13:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:13:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:13:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:13:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:13:11,436 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:13:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:13:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:13:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:13:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:13:11,437 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:13:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:13:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:13:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:13:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:13:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:13:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:13:11,438 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:13:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:13:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:13:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:13:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:13:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:13:11,439 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:13:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:13:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:13:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:13:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:13:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:13:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:13:11,440 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:13:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:13:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:13:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:13:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:13:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:13:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:13:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:13:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:13:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:13:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:13:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:13:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:13:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:13:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:13:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:13:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:13:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:13:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:13:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:13:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:13:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:13:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:13:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:13:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:13:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:13:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:13:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:13:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:13:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:13:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:13:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:13:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:13:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:13:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:13:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:13:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:13:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:13:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:13:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:13:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:13:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:13:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:13:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:13:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:13:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 03:13:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:13:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:13:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:13:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:13:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:13:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:13:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:13:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:13:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:13:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:13:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:13:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:13:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:13:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:13:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:13:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:13:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:13:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:13:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:13:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:13:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:13:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:13:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:13:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:13:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:13:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:13:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:13:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:13:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:13:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:13:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:13:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:13:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:13:15,856 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:13:15,857 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:13:15,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:15 BoogieIcfgContainer [2019-10-15 03:13:15,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:13:15,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:13:15,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:13:15,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:13:15,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:13:09" (1/3) ... [2019-10-15 03:13:15,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447be934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:15, skipping insertion in model container [2019-10-15 03:13:15,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (2/3) ... [2019-10-15 03:13:15,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447be934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:15, skipping insertion in model container [2019-10-15 03:13:15,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:15" (3/3) ... [2019-10-15 03:13:15,867 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product23.cil.c [2019-10-15 03:13:15,878 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:13:15,888 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:13:15,900 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:13:15,928 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:13:15,929 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:13:15,929 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:13:15,929 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:13:15,929 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:13:15,929 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:13:15,929 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:13:15,930 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:13:15,961 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states. [2019-10-15 03:13:15,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 03:13:15,980 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:15,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:15,984 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:15,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:15,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1832728935, now seen corresponding path program 1 times [2019-10-15 03:13:16,002 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:16,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187130404] [2019-10-15 03:13:16,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:16,757 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 03:13:16,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187130404] [2019-10-15 03:13:16,759 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:16,759 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:13:16,759 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005461151] [2019-10-15 03:13:16,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:13:16,766 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:16,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:13:16,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:13:16,784 INFO L87 Difference]: Start difference. First operand 397 states. Second operand 2 states. [2019-10-15 03:13:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:16,890 INFO L93 Difference]: Finished difference Result 548 states and 649 transitions. [2019-10-15 03:13:16,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:13:16,892 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 150 [2019-10-15 03:13:16,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:16,928 INFO L225 Difference]: With dead ends: 548 [2019-10-15 03:13:16,928 INFO L226 Difference]: Without dead ends: 356 [2019-10-15 03:13:16,938 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 03:13:16,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-15 03:13:17,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-10-15 03:13:17,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-15 03:13:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 417 transitions. [2019-10-15 03:13:17,069 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 417 transitions. Word has length 150 [2019-10-15 03:13:17,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:17,071 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 417 transitions. [2019-10-15 03:13:17,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:13:17,071 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 417 transitions. [2019-10-15 03:13:17,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-15 03:13:17,077 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:17,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:17,078 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:17,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:17,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1594038799, now seen corresponding path program 1 times [2019-10-15 03:13:17,078 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:17,079 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137687640] [2019-10-15 03:13:17,079 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,079 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:17,425 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 03:13:17,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137687640] [2019-10-15 03:13:17,426 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:17,426 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:17,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333718890] [2019-10-15 03:13:17,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:17,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:17,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:17,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:17,432 INFO L87 Difference]: Start difference. First operand 356 states and 417 transitions. Second operand 3 states. [2019-10-15 03:13:17,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:17,504 INFO L93 Difference]: Finished difference Result 533 states and 614 transitions. [2019-10-15 03:13:17,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:17,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-10-15 03:13:17,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:17,509 INFO L225 Difference]: With dead ends: 533 [2019-10-15 03:13:17,509 INFO L226 Difference]: Without dead ends: 358 [2019-10-15 03:13:17,511 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 03:13:17,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2019-10-15 03:13:17,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2019-10-15 03:13:17,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-10-15 03:13:17,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 419 transitions. [2019-10-15 03:13:17,535 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 419 transitions. Word has length 151 [2019-10-15 03:13:17,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:17,536 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 419 transitions. [2019-10-15 03:13:17,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:17,536 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 419 transitions. [2019-10-15 03:13:17,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 03:13:17,546 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:17,549 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:17,549 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:17,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:17,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1460630371, now seen corresponding path program 1 times [2019-10-15 03:13:17,550 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:17,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125338308] [2019-10-15 03:13:17,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:17,911 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 03:13:17,911 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125338308] [2019-10-15 03:13:17,912 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:17,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:17,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787894945] [2019-10-15 03:13:17,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:17,913 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:17,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:17,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:17,914 INFO L87 Difference]: Start difference. First operand 358 states and 419 transitions. Second operand 3 states. [2019-10-15 03:13:17,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:17,965 INFO L93 Difference]: Finished difference Result 700 states and 848 transitions. [2019-10-15 03:13:17,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:17,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-15 03:13:17,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:17,971 INFO L225 Difference]: With dead ends: 700 [2019-10-15 03:13:17,971 INFO L226 Difference]: Without dead ends: 400 [2019-10-15 03:13:17,973 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 03:13:17,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-10-15 03:13:18,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 399. [2019-10-15 03:13:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-15 03:13:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 490 transitions. [2019-10-15 03:13:18,008 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 490 transitions. Word has length 160 [2019-10-15 03:13:18,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:18,010 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 490 transitions. [2019-10-15 03:13:18,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:18,010 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 490 transitions. [2019-10-15 03:13:18,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-15 03:13:18,016 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:18,016 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:18,017 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:18,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:18,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1537483248, now seen corresponding path program 1 times [2019-10-15 03:13:18,019 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:18,019 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994925915] [2019-10-15 03:13:18,020 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,020 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:18,254 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 03:13:18,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994925915] [2019-10-15 03:13:18,254 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:18,255 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:18,255 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180776470] [2019-10-15 03:13:18,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:18,256 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:18,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:18,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:18,257 INFO L87 Difference]: Start difference. First operand 399 states and 490 transitions. Second operand 3 states. [2019-10-15 03:13:18,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:18,285 INFO L93 Difference]: Finished difference Result 820 states and 1056 transitions. [2019-10-15 03:13:18,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:18,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-15 03:13:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:18,289 INFO L225 Difference]: With dead ends: 820 [2019-10-15 03:13:18,289 INFO L226 Difference]: Without dead ends: 479 [2019-10-15 03:13:18,290 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 03:13:18,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2019-10-15 03:13:18,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 478. [2019-10-15 03:13:18,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-15 03:13:18,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 626 transitions. [2019-10-15 03:13:18,311 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 626 transitions. Word has length 161 [2019-10-15 03:13:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:18,311 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 626 transitions. [2019-10-15 03:13:18,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:18,312 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 626 transitions. [2019-10-15 03:13:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 03:13:18,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:18,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:18,316 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:18,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:18,316 INFO L82 PathProgramCache]: Analyzing trace with hash 770434436, now seen corresponding path program 1 times [2019-10-15 03:13:18,316 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:18,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033174047] [2019-10-15 03:13:18,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:18,562 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 03:13:18,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033174047] [2019-10-15 03:13:18,563 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:18,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:13:18,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18298849] [2019-10-15 03:13:18,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:13:18,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:18,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:13:18,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:13:18,565 INFO L87 Difference]: Start difference. First operand 478 states and 626 transitions. Second operand 8 states. [2019-10-15 03:13:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:18,617 INFO L93 Difference]: Finished difference Result 641 states and 813 transitions. [2019-10-15 03:13:18,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:13:18,618 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 164 [2019-10-15 03:13:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:18,621 INFO L225 Difference]: With dead ends: 641 [2019-10-15 03:13:18,622 INFO L226 Difference]: Without dead ends: 478 [2019-10-15 03:13:18,623 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:13:18,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-10-15 03:13:18,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2019-10-15 03:13:18,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-15 03:13:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 625 transitions. [2019-10-15 03:13:18,643 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 625 transitions. Word has length 164 [2019-10-15 03:13:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:18,644 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 625 transitions. [2019-10-15 03:13:18,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:13:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 625 transitions. [2019-10-15 03:13:18,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-15 03:13:18,647 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:18,647 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, 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 03:13:18,648 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:18,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1384080021, now seen corresponding path program 1 times [2019-10-15 03:13:18,648 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:18,649 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082049869] [2019-10-15 03:13:18,649 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,649 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:19,586 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 03:13:19,587 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082049869] [2019-10-15 03:13:19,587 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:19,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2019-10-15 03:13:19,588 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863943916] [2019-10-15 03:13:19,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-15 03:13:19,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:19,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-15 03:13:19,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-10-15 03:13:19,590 INFO L87 Difference]: Start difference. First operand 478 states and 625 transitions. Second operand 29 states. [2019-10-15 03:13:30,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:30,822 INFO L93 Difference]: Finished difference Result 888 states and 1117 transitions. [2019-10-15 03:13:30,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-15 03:13:30,823 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 169 [2019-10-15 03:13:30,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:30,829 INFO L225 Difference]: With dead ends: 888 [2019-10-15 03:13:30,830 INFO L226 Difference]: Without dead ends: 717 [2019-10-15 03:13:30,832 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=275, Invalid=3031, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 03:13:30,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-10-15 03:13:30,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 708. [2019-10-15 03:13:30,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-15 03:13:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 902 transitions. [2019-10-15 03:13:30,875 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 902 transitions. Word has length 169 [2019-10-15 03:13:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:30,876 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 902 transitions. [2019-10-15 03:13:30,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-15 03:13:30,876 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 902 transitions. [2019-10-15 03:13:30,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 03:13:30,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:30,880 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:13:30,881 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:30,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:30,881 INFO L82 PathProgramCache]: Analyzing trace with hash 523269876, now seen corresponding path program 1 times [2019-10-15 03:13:30,881 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:30,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962062988] [2019-10-15 03:13:30,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:30,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:30,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:13:31,433 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962062988] [2019-10-15 03:13:31,433 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:31,434 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-15 03:13:31,434 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295188021] [2019-10-15 03:13:31,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 03:13:31,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:31,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 03:13:31,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:13:31,435 INFO L87 Difference]: Start difference. First operand 708 states and 902 transitions. Second operand 23 states. [2019-10-15 03:13:40,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:40,558 INFO L93 Difference]: Finished difference Result 1430 states and 1738 transitions. [2019-10-15 03:13:40,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 03:13:40,559 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 190 [2019-10-15 03:13:40,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:40,566 INFO L225 Difference]: With dead ends: 1430 [2019-10-15 03:13:40,566 INFO L226 Difference]: Without dead ends: 1045 [2019-10-15 03:13:40,569 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=2023, Unknown=0, NotChecked=0, Total=2256 [2019-10-15 03:13:40,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-15 03:13:40,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1030. [2019-10-15 03:13:40,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2019-10-15 03:13:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1270 transitions. [2019-10-15 03:13:40,632 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1270 transitions. Word has length 190 [2019-10-15 03:13:40,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:40,633 INFO L462 AbstractCegarLoop]: Abstraction has 1030 states and 1270 transitions. [2019-10-15 03:13:40,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 03:13:40,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1270 transitions. [2019-10-15 03:13:40,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 03:13:40,638 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:40,638 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:13:40,638 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:40,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:40,639 INFO L82 PathProgramCache]: Analyzing trace with hash -189074485, now seen corresponding path program 1 times [2019-10-15 03:13:40,639 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:40,639 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590321786] [2019-10-15 03:13:40,640 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:40,640 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:40,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:41,595 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 03:13:41,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590321786] [2019-10-15 03:13:41,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43968792] [2019-10-15 03:13:41,595 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 03:13:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:42,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:13:42,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:13:42,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:13:42,400 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:13:42,689 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:13:42,690 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2063109386] [2019-10-15 03:13:42,724 INFO L162 IcfgInterpreter]: Started Sifa with 181 locations of interest [2019-10-15 03:13:42,724 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:13:42,731 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:13:42,738 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:13:42,739 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs