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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:08:30,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:08:30,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:08:30,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:08:30,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:08:30,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:08:30,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:08:30,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:08:30,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:08:30,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:08:30,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:08:30,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:08:30,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:08:30,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:08:30,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:08:30,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:08:30,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:08:30,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:08:30,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:08:30,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:08:30,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:08:30,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:08:30,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:08:30,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:08:30,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:08:30,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:08:30,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:08:30,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:08:30,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:08:30,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:08:30,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:08:30,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:08:30,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:08:30,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:08:30,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:08:30,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:08:30,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:08:30,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:08:30,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:08:30,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:08:30,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:08:30,522 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 [2019-10-13 23:08:30,541 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:08:30,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:08:30,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:08:30,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:08:30,545 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:08:30,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:08:30,546 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:08:30,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:08:30,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:08:30,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:08:30,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:08:30,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:08:30,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:08:30,547 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:08:30,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:08:30,547 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:08:30,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:08:30,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:08:30,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:08:30,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:08:30,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:08:30,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:30,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:08:30,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:08:30,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:08:30,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:08:30,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:08:30,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:08:30,550 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 [2019-10-13 23:08:30,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:08:30,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:08:30,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:08:30,893 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:08:30,893 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:08:30,894 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product25.cil.c [2019-10-13 23:08:30,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9dbe0ea8/8d1c038cbbb443b584808f10124c1da8/FLAGd48bf82ba [2019-10-13 23:08:31,553 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:08:31,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product25.cil.c [2019-10-13 23:08:31,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9dbe0ea8/8d1c038cbbb443b584808f10124c1da8/FLAGd48bf82ba [2019-10-13 23:08:31,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9dbe0ea8/8d1c038cbbb443b584808f10124c1da8 [2019-10-13 23:08:31,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:08:31,724 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:08:31,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:31,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:08:31,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:08:31,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6377ca13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31, skipping insertion in model container [2019-10-13 23:08:31,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,739 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:08:31,810 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:08:32,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:32,622 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:08:32,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:32,844 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:08:32,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32 WrapperNode [2019-10-13 23:08:32,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:32,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:08:32,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:08:32,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:08:32,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:33,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:33,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:08:33,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:08:33,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:08:33,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:08:33,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (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 [2019-10-13 23:08:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:08:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:08:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:08:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:08:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:08:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:08:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:08:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:08:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:08:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:08:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:08:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:08:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:08:33,115 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:08:33,115 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:08:33,115 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:08:33,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:08:33,115 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:08:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:08:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:08:33,117 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:08:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:08:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:08:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:08:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:08:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:08:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:08:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:08:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:08:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:08:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:08:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:08:33,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:08:33,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:08:33,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:08:33,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:08:33,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:08:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:08:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:08:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:08:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:08:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:08:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:08:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:08:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:08:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:08:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:08:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:08:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:08:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:08:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:08:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:08:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:08:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:08:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:08:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:08:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:08:33,128 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:08:33,128 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:08:33,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:08:33,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:08:33,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:08:33,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:08:33,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:08:33,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:08:33,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:08:33,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:08:33,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:08:33,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:08:33,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:08:33,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:08:33,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:08:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:08:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:08:33,133 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:08:33,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:08:33,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:08:33,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:08:33,134 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:08:33,135 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:08:33,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:08:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:08:33,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:08:33,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:08:33,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:08:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:08:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:08:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:08:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:08:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:08:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:08:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:08:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:08:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:08:33,140 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:08:33,140 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:08:33,140 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:08:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:08:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:08:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:08:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:08:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:08:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:08:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:08:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:08:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:08:33,143 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:08:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:08:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:08:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:08:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:08:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:08:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:08:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:08:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:08:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:08:33,146 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:08:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:08:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:08:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:08:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:08:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:08:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:08:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:08:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:08:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:08:33,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:08:33,153 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:08:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:08:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:08:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:08:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:08:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:08:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:08:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:08:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:08:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:08:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:08:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:08:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:08:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:08:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:08:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:08:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:08:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:08:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:08:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:08:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:08:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:08:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:08:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:08:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:08:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:08:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:08:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:08:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:08:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:08:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:08:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:08:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:08:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:08:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:08:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:08:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:08:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:08:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:08:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:08:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:08:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:08:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:08:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:08:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:08:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:08:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:08:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:08:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:08:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:08:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:08:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:08:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:08:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:08:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:08:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:08:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:08:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:08:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:08:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:08:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:08:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:08:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:08:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:08:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:08:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:08:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:08:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:08:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:08:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:08:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:08:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:08:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:08:33,176 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:08:33,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:08:33,176 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:08:33,176 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:08:33,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:08:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:08:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:08:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:08:33,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:08:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:08:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:08:33,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:08:33,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:08:33,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:08:33,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:08:33,179 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:08:33,179 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:08:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:08:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:08:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:08:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:08:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:08:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:08:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:08:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:08:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:08:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:08:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:08:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:08:38,189 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:08:38,191 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:08:38,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:38 BoogieIcfgContainer [2019-10-13 23:08:38,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:08:38,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:08:38,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:08:38,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:08:38,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:08:31" (1/3) ... [2019-10-13 23:08:38,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dec5b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:38, skipping insertion in model container [2019-10-13 23:08:38,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (2/3) ... [2019-10-13 23:08:38,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dec5b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:38, skipping insertion in model container [2019-10-13 23:08:38,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:38" (3/3) ... [2019-10-13 23:08:38,204 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product25.cil.c [2019-10-13 23:08:38,215 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:08:38,227 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:08:38,240 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:08:38,273 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:08:38,273 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:08:38,273 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:08:38,273 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:08:38,273 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:08:38,273 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:08:38,274 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:08:38,274 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:08:38,315 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states. [2019-10-13 23:08:38,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 23:08:38,334 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:38,335 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] [2019-10-13 23:08:38,337 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:38,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:38,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1031323587, now seen corresponding path program 1 times [2019-10-13 23:08:38,354 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:38,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573671078] [2019-10-13 23:08:38,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:38,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:38,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:39,025 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573671078] [2019-10-13 23:08:39,026 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:39,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:08:39,027 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070921715] [2019-10-13 23:08:39,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:08:39,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:39,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:08:39,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:39,052 INFO L87 Difference]: Start difference. First operand 406 states. Second operand 2 states. [2019-10-13 23:08:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:39,135 INFO L93 Difference]: Finished difference Result 594 states and 705 transitions. [2019-10-13 23:08:39,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:08:39,137 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 150 [2019-10-13 23:08:39,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:39,176 INFO L225 Difference]: With dead ends: 594 [2019-10-13 23:08:39,177 INFO L226 Difference]: Without dead ends: 379 [2019-10-13 23:08:39,190 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 [2019-10-13 23:08:39,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-13 23:08:39,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-10-13 23:08:39,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-13 23:08:39,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 445 transitions. [2019-10-13 23:08:39,330 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 445 transitions. Word has length 150 [2019-10-13 23:08:39,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:39,334 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 445 transitions. [2019-10-13 23:08:39,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:08:39,334 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 445 transitions. [2019-10-13 23:08:39,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-13 23:08:39,341 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:39,341 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] [2019-10-13 23:08:39,341 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:39,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:39,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1257065146, now seen corresponding path program 1 times [2019-10-13 23:08:39,342 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:39,342 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570783270] [2019-10-13 23:08:39,343 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:39,343 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:39,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:39,739 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:39,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570783270] [2019-10-13 23:08:39,740 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:39,740 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:39,740 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390254165] [2019-10-13 23:08:39,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:39,742 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:39,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:39,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:39,743 INFO L87 Difference]: Start difference. First operand 379 states and 445 transitions. Second operand 3 states. [2019-10-13 23:08:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:39,822 INFO L93 Difference]: Finished difference Result 579 states and 670 transitions. [2019-10-13 23:08:39,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:39,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-10-13 23:08:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:39,827 INFO L225 Difference]: With dead ends: 579 [2019-10-13 23:08:39,827 INFO L226 Difference]: Without dead ends: 381 [2019-10-13 23:08:39,830 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 [2019-10-13 23:08:39,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-10-13 23:08:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2019-10-13 23:08:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-13 23:08:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 447 transitions. [2019-10-13 23:08:39,858 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 447 transitions. Word has length 151 [2019-10-13 23:08:39,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:39,859 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 447 transitions. [2019-10-13 23:08:39,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:39,859 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 447 transitions. [2019-10-13 23:08:39,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 23:08:39,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:39,864 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] [2019-10-13 23:08:39,865 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:39,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:39,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1693510635, now seen corresponding path program 1 times [2019-10-13 23:08:39,865 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:39,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727970369] [2019-10-13 23:08:39,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:39,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:39,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:40,111 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:40,111 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727970369] [2019-10-13 23:08:40,112 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:40,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:40,112 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068768297] [2019-10-13 23:08:40,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:40,115 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:40,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:40,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:40,115 INFO L87 Difference]: Start difference. First operand 381 states and 447 transitions. Second operand 3 states. [2019-10-13 23:08:40,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:40,179 INFO L93 Difference]: Finished difference Result 746 states and 904 transitions. [2019-10-13 23:08:40,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:40,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-13 23:08:40,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:40,186 INFO L225 Difference]: With dead ends: 746 [2019-10-13 23:08:40,186 INFO L226 Difference]: Without dead ends: 423 [2019-10-13 23:08:40,188 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 [2019-10-13 23:08:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-13 23:08:40,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 422. [2019-10-13 23:08:40,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-13 23:08:40,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 518 transitions. [2019-10-13 23:08:40,231 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 518 transitions. Word has length 156 [2019-10-13 23:08:40,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:40,232 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 518 transitions. [2019-10-13 23:08:40,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:40,232 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 518 transitions. [2019-10-13 23:08:40,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 23:08:40,240 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:40,240 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] [2019-10-13 23:08:40,242 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:40,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:40,247 INFO L82 PathProgramCache]: Analyzing trace with hash -2068246680, now seen corresponding path program 1 times [2019-10-13 23:08:40,247 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:40,248 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453285402] [2019-10-13 23:08:40,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:40,530 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:40,531 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453285402] [2019-10-13 23:08:40,531 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:40,533 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:08:40,533 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520827247] [2019-10-13 23:08:40,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:08:40,535 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:40,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:08:40,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:40,535 INFO L87 Difference]: Start difference. First operand 422 states and 518 transitions. Second operand 8 states. [2019-10-13 23:08:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:40,607 INFO L93 Difference]: Finished difference Result 608 states and 733 transitions. [2019-10-13 23:08:40,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:08:40,607 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2019-10-13 23:08:40,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:40,614 INFO L225 Difference]: With dead ends: 608 [2019-10-13 23:08:40,614 INFO L226 Difference]: Without dead ends: 422 [2019-10-13 23:08:40,616 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 [2019-10-13 23:08:40,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-13 23:08:40,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2019-10-13 23:08:40,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-13 23:08:40,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 517 transitions. [2019-10-13 23:08:40,646 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 517 transitions. Word has length 157 [2019-10-13 23:08:40,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:40,647 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 517 transitions. [2019-10-13 23:08:40,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:08:40,647 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 517 transitions. [2019-10-13 23:08:40,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 23:08:40,651 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:40,651 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] [2019-10-13 23:08:40,652 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:40,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:40,652 INFO L82 PathProgramCache]: Analyzing trace with hash 863108260, now seen corresponding path program 1 times [2019-10-13 23:08:40,652 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:40,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691405119] [2019-10-13 23:08:40,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,654 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:41,611 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691405119] [2019-10-13 23:08:41,611 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:41,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2019-10-13 23:08:41,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758733236] [2019-10-13 23:08:41,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-13 23:08:41,613 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:41,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-13 23:08:41,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-10-13 23:08:41,615 INFO L87 Difference]: Start difference. First operand 422 states and 517 transitions. Second operand 29 states. [2019-10-13 23:08:53,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:53,336 INFO L93 Difference]: Finished difference Result 879 states and 1067 transitions. [2019-10-13 23:08:53,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-13 23:08:53,337 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 162 [2019-10-13 23:08:53,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:53,345 INFO L225 Difference]: With dead ends: 879 [2019-10-13 23:08:53,345 INFO L226 Difference]: Without dead ends: 685 [2019-10-13 23:08:53,348 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 [2019-10-13 23:08:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2019-10-13 23:08:53,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 676. [2019-10-13 23:08:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2019-10-13 23:08:53,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 824 transitions. [2019-10-13 23:08:53,399 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 824 transitions. Word has length 162 [2019-10-13 23:08:53,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:53,401 INFO L462 AbstractCegarLoop]: Abstraction has 676 states and 824 transitions. [2019-10-13 23:08:53,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-13 23:08:53,401 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 824 transitions. [2019-10-13 23:08:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 23:08:53,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:53,405 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] [2019-10-13 23:08:53,405 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:53,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:53,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1983451491, now seen corresponding path program 1 times [2019-10-13 23:08:53,406 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:53,406 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209429644] [2019-10-13 23:08:53,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:53,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:53,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:53,992 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:08:53,992 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209429644] [2019-10-13 23:08:53,992 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:53,993 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-13 23:08:53,993 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848854554] [2019-10-13 23:08:53,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-13 23:08:53,994 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:53,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-13 23:08:53,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:08:53,994 INFO L87 Difference]: Start difference. First operand 676 states and 824 transitions. Second operand 23 states. [2019-10-13 23:09:04,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:04,547 INFO L93 Difference]: Finished difference Result 1492 states and 1776 transitions. [2019-10-13 23:09:04,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 23:09:04,550 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 183 [2019-10-13 23:09:04,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:04,561 INFO L225 Difference]: With dead ends: 1492 [2019-10-13 23:09:04,561 INFO L226 Difference]: Without dead ends: 1060 [2019-10-13 23:09:04,564 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 [2019-10-13 23:09:04,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2019-10-13 23:09:04,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1045. [2019-10-13 23:09:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-10-13 23:09:04,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1250 transitions. [2019-10-13 23:09:04,625 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1250 transitions. Word has length 183 [2019-10-13 23:09:04,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:04,626 INFO L462 AbstractCegarLoop]: Abstraction has 1045 states and 1250 transitions. [2019-10-13 23:09:04,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-13 23:09:04,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1250 transitions. [2019-10-13 23:09:04,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 23:09:04,630 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:04,630 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] [2019-10-13 23:09:04,631 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:04,631 INFO L82 PathProgramCache]: Analyzing trace with hash 19677575, now seen corresponding path program 1 times [2019-10-13 23:09:04,631 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:04,632 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770211465] [2019-10-13 23:09:04,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:04,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:04,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:09:05,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770211465] [2019-10-13 23:09:05,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035726746] [2019-10-13 23:09:05,761 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 [2019-10-13 23:09:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:06,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 2867 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:09:06,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:09:06,482 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:09:06,483 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:09:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:09:06,759 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2039306105] [2019-10-13 23:09:06,791 INFO L162 IcfgInterpreter]: Started Sifa with 174 locations of interest [2019-10-13 23:09:06,791 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:09:06,798 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:09:06,806 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:09:06,806 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs