java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:10:33,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:10:33,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:10:33,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:10:33,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:10:33,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:10:33,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:10:33,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:10:33,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:10:33,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:10:33,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:10:33,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:10:33,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:10:33,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:10:33,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:10:33,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:10:33,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:10:33,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:10:33,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:10:33,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:10:33,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:10:33,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:10:33,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:10:33,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:10:33,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:10:33,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:10:33,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:10:33,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:10:33,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:10:33,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:10:33,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:10:33,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:10:33,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:10:33,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:10:33,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:10:33,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:10:33,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:10:33,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:10:33,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:10:33,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:10:33,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:10:33,164 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 23:10:33,184 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:10:33,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:10:33,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:10:33,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:10:33,188 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:10:33,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:10:33,189 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:10:33,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:10:33,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:10:33,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:10:33,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:10:33,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:10:33,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:10:33,191 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:10:33,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:10:33,192 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:10:33,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:10:33,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:10:33,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:10:33,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:10:33,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:10:33,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:10:33,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:10:33,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:10:33,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:10:33,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:10:33,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:10:33,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:10:33,194 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 23:10:33,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:10:33,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:10:33,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:10:33,511 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:10:33,512 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:10:33,513 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c [2019-10-13 23:10:33,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/457e97c48/6e4ebd768d77479bae79bf52bc91c12f/FLAGe3d0dec23 [2019-10-13 23:10:34,211 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:10:34,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c [2019-10-13 23:10:34,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/457e97c48/6e4ebd768d77479bae79bf52bc91c12f/FLAGe3d0dec23 [2019-10-13 23:10:34,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/457e97c48/6e4ebd768d77479bae79bf52bc91c12f [2019-10-13 23:10:34,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:10:34,434 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:10:34,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:34,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:10:34,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:10:34,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:34" (1/1) ... [2019-10-13 23:10:34,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e8ed57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34, skipping insertion in model container [2019-10-13 23:10:34,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:34" (1/1) ... [2019-10-13 23:10:34,451 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:10:34,531 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:10:35,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:35,367 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:10:35,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:35,560 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:10:35,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35 WrapperNode [2019-10-13 23:10:35,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:35,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:10:35,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:10:35,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:10:35,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35" (1/1) ... [2019-10-13 23:10:35,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35" (1/1) ... [2019-10-13 23:10:35,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35" (1/1) ... [2019-10-13 23:10:35,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35" (1/1) ... [2019-10-13 23:10:35,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35" (1/1) ... [2019-10-13 23:10:35,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35" (1/1) ... [2019-10-13 23:10:35,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35" (1/1) ... [2019-10-13 23:10:35,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:10:35,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:10:35,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:10:35,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:10:35,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35" (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 23:10:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:10:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:10:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:10:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:10:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:10:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:10:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:10:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:10:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:10:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:10:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:10:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:10:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:10:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:10:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:10:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:10:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:10:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:10:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:10:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:10:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:10:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:10:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:10:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:10:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:10:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:10:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:10:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:10:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:10:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:10:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:10:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:10:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:10:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:10:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:10:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:10:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:10:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:10:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:10:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:10:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:10:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:10:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:10:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:10:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:10:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:10:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:10:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:10:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:10:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:10:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:10:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:10:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:10:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:10:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:10:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:10:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:10:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:10:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:10:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:10:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:10:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:10:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:10:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:10:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:10:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:10:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:10:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:10:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:10:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:10:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:10:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:10:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:10:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:10:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:10:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:10:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:10:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:10:35,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:10:35,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:10:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:10:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:10:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:10:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:10:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:10:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:10:35,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:10:35,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:35,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:10:35,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:35,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:10:35,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:10:35,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:10:35,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:10:35,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:10:35,857 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:10:35,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:10:35,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:10:35,857 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:10:35,857 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:10:35,858 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:10:35,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:10:35,858 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:10:35,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:10:35,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:10:35,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:35,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:35,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:35,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:10:35,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:10:35,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:10:35,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:35,859 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:10:35,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:10:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:10:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:10:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:10:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:10:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:10:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:10:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:10:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:10:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:10:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:10:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:10:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:10:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:10:35,864 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:10:35,864 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:10:35,864 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:10:35,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:10:35,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:10:35,866 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:10:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:10:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:10:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:10:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:10:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:10:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:10:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:10:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:10:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:10:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:10:35,878 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:10:35,878 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:10:35,878 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:10:35,878 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:10:35,879 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:10:35,879 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:10:35,879 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:10:35,879 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:10:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:10:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:10:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:10:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:10:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:10:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:10:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:10:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:10:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:10:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:10:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:10:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:10:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:10:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:10:35,882 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:10:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:10:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:10:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:10:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:10:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:10:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:10:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:10:35,883 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:10:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:10:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:10:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:10:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:10:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:10:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:10:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:10:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:10:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:10:35,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:10:35,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:10:35,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:10:35,885 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:10:35,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:10:35,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:10:35,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:10:35,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:10:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:10:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:10:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:10:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:10:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:10:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:10:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:10:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:10:35,887 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:10:35,887 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:10:35,887 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:10:35,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:10:35,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:10:35,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:10:35,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:10:35,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:10:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:10:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:10:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:10:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:10:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:10:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:10:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:10:35,888 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:10:35,889 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:10:35,889 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:10:35,889 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:10:35,889 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:10:35,889 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:10:35,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:10:35,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:35,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:35,890 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:10:35,890 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:10:35,890 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:10:35,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:35,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:10:35,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:10:35,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:10:35,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:10:35,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:35,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:10:35,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:35,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:35,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:10:35,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:10:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:10:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:10:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:10:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:10:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:10:35,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:10:40,542 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:10:40,543 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:10:40,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:40 BoogieIcfgContainer [2019-10-13 23:10:40,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:10:40,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:10:40,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:10:40,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:10:40,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:10:34" (1/3) ... [2019-10-13 23:10:40,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7634c44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:40, skipping insertion in model container [2019-10-13 23:10:40,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35" (2/3) ... [2019-10-13 23:10:40,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7634c44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:40, skipping insertion in model container [2019-10-13 23:10:40,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:40" (3/3) ... [2019-10-13 23:10:40,555 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product30.cil.c [2019-10-13 23:10:40,622 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:10:40,635 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:10:40,648 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:10:40,699 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:10:40,699 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:10:40,699 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:10:40,699 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:10:40,700 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:10:40,700 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:10:40,700 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:10:40,700 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:10:40,729 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states. [2019-10-13 23:10:40,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 23:10:40,746 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:40,747 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] [2019-10-13 23:10:40,749 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:40,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:40,756 INFO L82 PathProgramCache]: Analyzing trace with hash 35129417, now seen corresponding path program 1 times [2019-10-13 23:10:40,766 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:40,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545053458] [2019-10-13 23:10:40,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:40,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:40,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:41,325 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 23:10:41,326 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545053458] [2019-10-13 23:10:41,327 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:41,327 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:10:41,327 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157801240] [2019-10-13 23:10:41,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:10:41,333 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:41,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:10:41,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:10:41,350 INFO L87 Difference]: Start difference. First operand 399 states. Second operand 2 states. [2019-10-13 23:10:41,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:41,423 INFO L93 Difference]: Finished difference Result 564 states and 668 transitions. [2019-10-13 23:10:41,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:10:41,425 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 129 [2019-10-13 23:10:41,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:41,459 INFO L225 Difference]: With dead ends: 564 [2019-10-13 23:10:41,459 INFO L226 Difference]: Without dead ends: 357 [2019-10-13 23:10:41,470 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 23:10:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-10-13 23:10:41,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2019-10-13 23:10:41,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-10-13 23:10:41,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 422 transitions. [2019-10-13 23:10:41,573 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 422 transitions. Word has length 129 [2019-10-13 23:10:41,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:41,576 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 422 transitions. [2019-10-13 23:10:41,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:10:41,576 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 422 transitions. [2019-10-13 23:10:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 23:10:41,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:41,585 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] [2019-10-13 23:10:41,585 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:41,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:41,585 INFO L82 PathProgramCache]: Analyzing trace with hash 732439400, now seen corresponding path program 1 times [2019-10-13 23:10:41,586 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:41,586 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686705310] [2019-10-13 23:10:41,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:41,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:41,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:41,915 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 23:10:41,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686705310] [2019-10-13 23:10:41,916 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:41,916 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:41,917 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289542289] [2019-10-13 23:10:41,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:41,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:41,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:41,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:41,923 INFO L87 Difference]: Start difference. First operand 357 states and 422 transitions. Second operand 3 states. [2019-10-13 23:10:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:41,990 INFO L93 Difference]: Finished difference Result 549 states and 639 transitions. [2019-10-13 23:10:41,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:41,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-13 23:10:41,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:41,994 INFO L225 Difference]: With dead ends: 549 [2019-10-13 23:10:41,995 INFO L226 Difference]: Without dead ends: 359 [2019-10-13 23:10:41,996 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 23:10:41,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-10-13 23:10:42,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2019-10-13 23:10:42,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2019-10-13 23:10:42,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 424 transitions. [2019-10-13 23:10:42,039 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 424 transitions. Word has length 130 [2019-10-13 23:10:42,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:42,039 INFO L462 AbstractCegarLoop]: Abstraction has 359 states and 424 transitions. [2019-10-13 23:10:42,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:42,040 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 424 transitions. [2019-10-13 23:10:42,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-13 23:10:42,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:42,043 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:42,043 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:42,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:42,044 INFO L82 PathProgramCache]: Analyzing trace with hash -368302633, now seen corresponding path program 1 times [2019-10-13 23:10:42,044 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:42,044 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187366300] [2019-10-13 23:10:42,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:42,327 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:42,327 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187366300] [2019-10-13 23:10:42,328 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:42,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:42,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916035108] [2019-10-13 23:10:42,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:42,329 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:42,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:42,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:42,329 INFO L87 Difference]: Start difference. First operand 359 states and 424 transitions. Second operand 3 states. [2019-10-13 23:10:42,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:42,364 INFO L93 Difference]: Finished difference Result 700 states and 855 transitions. [2019-10-13 23:10:42,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:42,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-13 23:10:42,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:42,370 INFO L225 Difference]: With dead ends: 700 [2019-10-13 23:10:42,370 INFO L226 Difference]: Without dead ends: 399 [2019-10-13 23:10:42,374 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 23:10:42,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-13 23:10:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 398. [2019-10-13 23:10:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-10-13 23:10:42,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 492 transitions. [2019-10-13 23:10:42,428 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 492 transitions. Word has length 139 [2019-10-13 23:10:42,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:42,430 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 492 transitions. [2019-10-13 23:10:42,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 492 transitions. [2019-10-13 23:10:42,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-13 23:10:42,433 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:42,434 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:42,434 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:42,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:42,434 INFO L82 PathProgramCache]: Analyzing trace with hash -979026137, now seen corresponding path program 1 times [2019-10-13 23:10:42,435 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:42,435 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471095633] [2019-10-13 23:10:42,435 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,435 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:42,578 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471095633] [2019-10-13 23:10:42,578 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:42,578 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:42,579 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095320760] [2019-10-13 23:10:42,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:42,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:42,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:42,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:42,580 INFO L87 Difference]: Start difference. First operand 398 states and 492 transitions. Second operand 3 states. [2019-10-13 23:10:42,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:42,609 INFO L93 Difference]: Finished difference Result 814 states and 1054 transitions. [2019-10-13 23:10:42,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:42,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-10-13 23:10:42,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:42,613 INFO L225 Difference]: With dead ends: 814 [2019-10-13 23:10:42,614 INFO L226 Difference]: Without dead ends: 474 [2019-10-13 23:10:42,615 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 23:10:42,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-13 23:10:42,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 473. [2019-10-13 23:10:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-10-13 23:10:42,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 622 transitions. [2019-10-13 23:10:42,640 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 622 transitions. Word has length 140 [2019-10-13 23:10:42,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:42,640 INFO L462 AbstractCegarLoop]: Abstraction has 473 states and 622 transitions. [2019-10-13 23:10:42,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:42,641 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 622 transitions. [2019-10-13 23:10:42,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:10:42,644 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:42,644 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:42,644 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:42,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:42,645 INFO L82 PathProgramCache]: Analyzing trace with hash -439286021, now seen corresponding path program 1 times [2019-10-13 23:10:42,645 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:42,646 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820387359] [2019-10-13 23:10:42,646 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,646 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:43,373 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820387359] [2019-10-13 23:10:43,373 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:43,373 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-13 23:10:43,374 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405954921] [2019-10-13 23:10:43,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 23:10:43,375 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:43,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 23:10:43,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:10:43,377 INFO L87 Difference]: Start difference. First operand 473 states and 622 transitions. Second operand 21 states. [2019-10-13 23:10:51,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:51,352 INFO L93 Difference]: Finished difference Result 871 states and 1082 transitions. [2019-10-13 23:10:51,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 23:10:51,352 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 143 [2019-10-13 23:10:51,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:51,362 INFO L225 Difference]: With dead ends: 871 [2019-10-13 23:10:51,362 INFO L226 Difference]: Without dead ends: 675 [2019-10-13 23:10:51,367 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-13 23:10:51,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2019-10-13 23:10:51,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 668. [2019-10-13 23:10:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-10-13 23:10:51,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 849 transitions. [2019-10-13 23:10:51,423 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 849 transitions. Word has length 143 [2019-10-13 23:10:51,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:51,424 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 849 transitions. [2019-10-13 23:10:51,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 23:10:51,424 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 849 transitions. [2019-10-13 23:10:51,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 23:10:51,427 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:51,427 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:51,428 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:51,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:51,428 INFO L82 PathProgramCache]: Analyzing trace with hash 568749428, now seen corresponding path program 1 times [2019-10-13 23:10:51,428 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:51,429 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033392033] [2019-10-13 23:10:51,429 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:51,429 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:51,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:52,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:52,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033392033] [2019-10-13 23:10:52,038 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:52,038 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-13 23:10:52,038 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163611418] [2019-10-13 23:10:52,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-13 23:10:52,040 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:52,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-13 23:10:52,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:10:52,040 INFO L87 Difference]: Start difference. First operand 668 states and 849 transitions. Second operand 23 states. [2019-10-13 23:10:53,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:53,893 INFO L93 Difference]: Finished difference Result 746 states and 939 transitions. [2019-10-13 23:10:53,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-13 23:10:53,893 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 149 [2019-10-13 23:10:53,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:53,898 INFO L225 Difference]: With dead ends: 746 [2019-10-13 23:10:53,899 INFO L226 Difference]: Without dead ends: 710 [2019-10-13 23:10:53,900 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 23:10:53,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-10-13 23:10:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 705. [2019-10-13 23:10:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2019-10-13 23:10:53,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 886 transitions. [2019-10-13 23:10:53,940 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 886 transitions. Word has length 149 [2019-10-13 23:10:53,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:53,941 INFO L462 AbstractCegarLoop]: Abstraction has 705 states and 886 transitions. [2019-10-13 23:10:53,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-13 23:10:53,941 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 886 transitions. [2019-10-13 23:10:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-13 23:10:53,946 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:53,947 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:53,947 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:53,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:53,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1113073814, now seen corresponding path program 1 times [2019-10-13 23:10:53,948 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:53,948 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387433279] [2019-10-13 23:10:53,948 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:53,948 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:53,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:54,713 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 23:10:54,714 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387433279] [2019-10-13 23:10:54,714 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:54,714 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 23:10:54,714 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717599701] [2019-10-13 23:10:54,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 23:10:54,715 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:54,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 23:10:54,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:10:54,717 INFO L87 Difference]: Start difference. First operand 705 states and 886 transitions. Second operand 28 states. [2019-10-13 23:11:04,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:04,174 INFO L93 Difference]: Finished difference Result 1362 states and 1648 transitions. [2019-10-13 23:11:04,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-13 23:11:04,175 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 257 [2019-10-13 23:11:04,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:04,184 INFO L225 Difference]: With dead ends: 1362 [2019-10-13 23:11:04,184 INFO L226 Difference]: Without dead ends: 1159 [2019-10-13 23:11:04,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=315, Invalid=3717, Unknown=0, NotChecked=0, Total=4032 [2019-10-13 23:11:04,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2019-10-13 23:11:04,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1088. [2019-10-13 23:11:04,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2019-10-13 23:11:04,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1317 transitions. [2019-10-13 23:11:04,248 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1317 transitions. Word has length 257 [2019-10-13 23:11:04,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:04,249 INFO L462 AbstractCegarLoop]: Abstraction has 1088 states and 1317 transitions. [2019-10-13 23:11:04,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 23:11:04,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1317 transitions. [2019-10-13 23:11:04,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2019-10-13 23:11:04,257 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:04,257 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:04,258 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:04,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:04,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1461416115, now seen corresponding path program 1 times [2019-10-13 23:11:04,258 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:04,259 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720130928] [2019-10-13 23:11:04,259 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:04,259 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:04,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 23:11:04,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720130928] [2019-10-13 23:11:04,675 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:04,675 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:11:04,676 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358925361] [2019-10-13 23:11:04,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:11:04,678 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:04,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:11:04,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:11:04,679 INFO L87 Difference]: Start difference. First operand 1088 states and 1317 transitions. Second operand 10 states. [2019-10-13 23:11:04,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:04,798 INFO L93 Difference]: Finished difference Result 1579 states and 1853 transitions. [2019-10-13 23:11:04,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:11:04,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 261 [2019-10-13 23:11:04,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:04,897 INFO L225 Difference]: With dead ends: 1579 [2019-10-13 23:11:04,897 INFO L226 Difference]: Without dead ends: 1128 [2019-10-13 23:11:04,901 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:11:04,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-10-13 23:11:04,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1096. [2019-10-13 23:11:04,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2019-10-13 23:11:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1323 transitions. [2019-10-13 23:11:04,967 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1323 transitions. Word has length 261 [2019-10-13 23:11:04,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:04,968 INFO L462 AbstractCegarLoop]: Abstraction has 1096 states and 1323 transitions. [2019-10-13 23:11:04,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:11:04,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1323 transitions. [2019-10-13 23:11:04,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-13 23:11:04,976 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:04,977 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:04,977 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:04,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:04,978 INFO L82 PathProgramCache]: Analyzing trace with hash 689169505, now seen corresponding path program 1 times [2019-10-13 23:11:04,978 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:04,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554082597] [2019-10-13 23:11:04,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:04,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:04,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:05,481 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-13 23:11:05,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554082597] [2019-10-13 23:11:05,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405650711] [2019-10-13 23:11:05,482 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 23:11:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:06,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 3366 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:11:06,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:11:06,387 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-13 23:11:06,387 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:11:06,973 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 23:11:06,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2018049762] [2019-10-13 23:11:07,005 INFO L162 IcfgInterpreter]: Started Sifa with 219 locations of interest [2019-10-13 23:11:07,006 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:11:07,013 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:11:07,020 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:11:07,021 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs