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_spec7_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:04:08,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:04:08,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:04:08,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:04:08,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:04:08,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:04:08,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:04:08,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:04:08,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:04:08,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:04:08,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:04:08,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:04:08,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:04:08,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:04:08,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:04:08,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:04:08,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:04:08,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:04:08,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:04:08,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:04:08,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:04:08,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:04:08,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:04:08,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:04:08,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:04:08,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:04:08,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:04:08,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:04:08,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:04:08,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:04:08,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:04:08,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:04:08,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:04:08,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:04:08,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:04:08,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:04:08,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:04:08,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:04:08,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:04:08,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:04:08,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:04:08,795 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 [2019-10-07 15:04:08,828 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:04:08,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:04:08,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:04:08,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:04:08,832 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:04:08,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:04:08,832 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:04:08,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:04:08,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:04:08,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:04:08,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:04:08,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:04:08,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:04:08,834 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:04:08,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:04:08,834 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:04:08,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:04:08,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:04:08,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:04:08,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:04:08,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:04:08,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:04:08,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:04:08,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:04:08,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:04:08,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:04:08,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:04:08,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:04:08,843 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 [2019-10-07 15:04:09,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:04:09,112 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:04:09,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:04:09,116 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:04:09,117 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:04:09,117 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product30.cil.c [2019-10-07 15:04:09,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc76a6f6/362101e94c2a4364ac7ae1d26a23908e/FLAG31739bc2f [2019-10-07 15:04:09,750 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:04:09,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product30.cil.c [2019-10-07 15:04:09,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc76a6f6/362101e94c2a4364ac7ae1d26a23908e/FLAG31739bc2f [2019-10-07 15:04:10,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc76a6f6/362101e94c2a4364ac7ae1d26a23908e [2019-10-07 15:04:10,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:04:10,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:04:10,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:04:10,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:04:10,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:04:10,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:04:10" (1/1) ... [2019-10-07 15:04:10,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342f7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:10, skipping insertion in model container [2019-10-07 15:04:10,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:04:10" (1/1) ... [2019-10-07 15:04:10,068 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:04:10,149 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:04:10,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:04:10,915 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:04:11,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:04:11,086 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:04:11,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11 WrapperNode [2019-10-07 15:04:11,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:04:11,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:04:11,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:04:11,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:04:11,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11" (1/1) ... [2019-10-07 15:04:11,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11" (1/1) ... [2019-10-07 15:04:11,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11" (1/1) ... [2019-10-07 15:04:11,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11" (1/1) ... [2019-10-07 15:04:11,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11" (1/1) ... [2019-10-07 15:04:11,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11" (1/1) ... [2019-10-07 15:04:11,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11" (1/1) ... [2019-10-07 15:04:11,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:04:11,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:04:11,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:04:11,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:04:11,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:04:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:04:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:04:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:04:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:04:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:04:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:04:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:04:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:04:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:04:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:04:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:04:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:04:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:04:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:04:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:04:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:04:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:04:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:04:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:04:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:04:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:04:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:04:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:04:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:04:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:04:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:04:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:04:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:04:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:04:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:04:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:04:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-07 15:04:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:04:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:04:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:04:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:04:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:04:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:04:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:04:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:04:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:04:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:04:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:04:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:04:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:04:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:04:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:04:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:04:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:04:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:04:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:04:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:04:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:04:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:04:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:04:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:04:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:04:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:04:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:04:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:04:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:04:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:04:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:04:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:04:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:04:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:04:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:04:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:04:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:04:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:04:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:04:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:04:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:04:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:04:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:04:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:04:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:04:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:04:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:04:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:04:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:04:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:04:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:04:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:04:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:04:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:04:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:04:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:04:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 15:04:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 15:04:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:04:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:04:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:04:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:04:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:04:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:04:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:04:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:04:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:04:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:04:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:04:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:04:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:04:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:04:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:04:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:04:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:04:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:04:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:04:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:04:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:04:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:04:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:04:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:04:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:04:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:04:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:04:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:04:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:04:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:04:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:04:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:04:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:04:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:04:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:04:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:04:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:04:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:04:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:04:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:04:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:04:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:04:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:04:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:04:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:04:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:04:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:04:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:04:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:04:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:04:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:04:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:04:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:04:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:04:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:04:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:04:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:04:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:04:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:04:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:04:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:04:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:04:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:04:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:04:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:04:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:04:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:04:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:04:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:04:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:04:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:04:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:04:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:04:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:04:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:04:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:04:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:04:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-07 15:04:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:04:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:04:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:04:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:04:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:04:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:04:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:04:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:04:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:04:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:04:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:04:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:04:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:04:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:04:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:04:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:04:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:04:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:04:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:04:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:04:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:04:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:04:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:04:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:04:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:04:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:04:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:04:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:04:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:04:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:04:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:04:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:04:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:04:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:04:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:04:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:04:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:04:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:04:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:04:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:04:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:04:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:04:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:04:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:04:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:04:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:04:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:04:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:04:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:04:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:04:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:04:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:04:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:04:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:04:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:04:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:04:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:04:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:04:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:04:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:04:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 15:04:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 15:04:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:04:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:04:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:04:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:04:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:04:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:04:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:04:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:04:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:04:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:04:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:04:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:04:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:04:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:04:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:04:15,806 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:04:15,806 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:04:15,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:04:15 BoogieIcfgContainer [2019-10-07 15:04:15,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:04:15,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:04:15,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:04:15,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:04:15,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:04:10" (1/3) ... [2019-10-07 15:04:15,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed2a7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:04:15, skipping insertion in model container [2019-10-07 15:04:15,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:11" (2/3) ... [2019-10-07 15:04:15,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed2a7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:04:15, skipping insertion in model container [2019-10-07 15:04:15,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:04:15" (3/3) ... [2019-10-07 15:04:15,816 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product30.cil.c [2019-10-07 15:04:15,825 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:04:15,833 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:04:15,844 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:04:15,872 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:04:15,872 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:04:15,872 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:04:15,872 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:04:15,872 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:04:15,872 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:04:15,873 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:04:15,873 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:04:15,899 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states. [2019-10-07 15:04:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 15:04:15,916 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:15,917 INFO L385 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] [2019-10-07 15:04:15,919 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:15,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:15,925 INFO L82 PathProgramCache]: Analyzing trace with hash -411168799, now seen corresponding path program 1 times [2019-10-07 15:04:15,934 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:15,934 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:15,934 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:15,935 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:15,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:16,635 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:16,636 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:16,636 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:04:16,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:04:16,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:04:16,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:04:16,661 INFO L87 Difference]: Start difference. First operand 395 states. Second operand 2 states. [2019-10-07 15:04:16,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:16,762 INFO L93 Difference]: Finished difference Result 556 states and 659 transitions. [2019-10-07 15:04:16,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:04:16,764 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-07 15:04:16,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:16,797 INFO L225 Difference]: With dead ends: 556 [2019-10-07 15:04:16,797 INFO L226 Difference]: Without dead ends: 353 [2019-10-07 15:04:16,809 INFO L606 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 [2019-10-07 15:04:16,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-10-07 15:04:16,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2019-10-07 15:04:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2019-10-07 15:04:16,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 416 transitions. [2019-10-07 15:04:16,931 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 416 transitions. Word has length 145 [2019-10-07 15:04:16,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:16,933 INFO L462 AbstractCegarLoop]: Abstraction has 353 states and 416 transitions. [2019-10-07 15:04:16,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:04:16,934 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 416 transitions. [2019-10-07 15:04:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 15:04:16,946 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:16,947 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:16,947 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:16,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:16,948 INFO L82 PathProgramCache]: Analyzing trace with hash -2114721749, now seen corresponding path program 1 times [2019-10-07 15:04:16,948 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:16,949 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:16,949 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:16,949 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:16,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:17,313 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:17,313 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:17,313 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:04:17,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:04:17,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:04:17,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:04:17,316 INFO L87 Difference]: Start difference. First operand 353 states and 416 transitions. Second operand 3 states. [2019-10-07 15:04:17,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:17,350 INFO L93 Difference]: Finished difference Result 541 states and 627 transitions. [2019-10-07 15:04:17,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:04:17,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-07 15:04:17,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:17,354 INFO L225 Difference]: With dead ends: 541 [2019-10-07 15:04:17,354 INFO L226 Difference]: Without dead ends: 355 [2019-10-07 15:04:17,356 INFO L606 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 [2019-10-07 15:04:17,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-07 15:04:17,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2019-10-07 15:04:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-07 15:04:17,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 418 transitions. [2019-10-07 15:04:17,376 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 418 transitions. Word has length 146 [2019-10-07 15:04:17,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:17,377 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 418 transitions. [2019-10-07 15:04:17,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:04:17,377 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 418 transitions. [2019-10-07 15:04:17,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 15:04:17,379 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:17,380 INFO L385 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] [2019-10-07 15:04:17,380 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:17,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:17,380 INFO L82 PathProgramCache]: Analyzing trace with hash 386551375, now seen corresponding path program 1 times [2019-10-07 15:04:17,381 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:17,381 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:17,381 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:17,381 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:17,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:17,549 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:17,549 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:17,549 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:17,549 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:04:17,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:04:17,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:04:17,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:04:17,551 INFO L87 Difference]: Start difference. First operand 355 states and 418 transitions. Second operand 3 states. [2019-10-07 15:04:17,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:17,581 INFO L93 Difference]: Finished difference Result 692 states and 843 transitions. [2019-10-07 15:04:17,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:04:17,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-07 15:04:17,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:17,585 INFO L225 Difference]: With dead ends: 692 [2019-10-07 15:04:17,585 INFO L226 Difference]: Without dead ends: 395 [2019-10-07 15:04:17,586 INFO L606 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 [2019-10-07 15:04:17,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-10-07 15:04:17,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 394. [2019-10-07 15:04:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-10-07 15:04:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 486 transitions. [2019-10-07 15:04:17,604 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 486 transitions. Word has length 155 [2019-10-07 15:04:17,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:17,604 INFO L462 AbstractCegarLoop]: Abstraction has 394 states and 486 transitions. [2019-10-07 15:04:17,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:04:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 486 transitions. [2019-10-07 15:04:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 15:04:17,607 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:17,608 INFO L385 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] [2019-10-07 15:04:17,608 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:17,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:17,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1150213139, now seen corresponding path program 1 times [2019-10-07 15:04:17,609 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:17,609 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:17,609 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:17,609 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:17,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:17,750 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:17,751 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:17,751 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:04:17,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:04:17,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:04:17,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:04:17,752 INFO L87 Difference]: Start difference. First operand 394 states and 486 transitions. Second operand 3 states. [2019-10-07 15:04:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:17,779 INFO L93 Difference]: Finished difference Result 806 states and 1042 transitions. [2019-10-07 15:04:17,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:04:17,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-07 15:04:17,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:17,783 INFO L225 Difference]: With dead ends: 806 [2019-10-07 15:04:17,783 INFO L226 Difference]: Without dead ends: 470 [2019-10-07 15:04:17,784 INFO L606 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 [2019-10-07 15:04:17,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-10-07 15:04:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2019-10-07 15:04:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2019-10-07 15:04:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 616 transitions. [2019-10-07 15:04:17,805 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 616 transitions. Word has length 156 [2019-10-07 15:04:17,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:17,805 INFO L462 AbstractCegarLoop]: Abstraction has 469 states and 616 transitions. [2019-10-07 15:04:17,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:04:17,806 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 616 transitions. [2019-10-07 15:04:17,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-07 15:04:17,809 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:17,809 INFO L385 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] [2019-10-07 15:04:17,810 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:17,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:17,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1337878609, now seen corresponding path program 1 times [2019-10-07 15:04:17,810 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:17,811 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:17,811 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:17,811 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:18,035 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:18,035 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:18,035 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:18,036 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:04:18,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:04:18,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:04:18,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:04:18,037 INFO L87 Difference]: Start difference. First operand 469 states and 616 transitions. Second operand 3 states. [2019-10-07 15:04:18,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:18,074 INFO L93 Difference]: Finished difference Result 1025 states and 1422 transitions. [2019-10-07 15:04:18,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:04:18,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-07 15:04:18,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:18,082 INFO L225 Difference]: With dead ends: 1025 [2019-10-07 15:04:18,082 INFO L226 Difference]: Without dead ends: 614 [2019-10-07 15:04:18,084 INFO L606 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 [2019-10-07 15:04:18,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2019-10-07 15:04:18,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 613. [2019-10-07 15:04:18,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-10-07 15:04:18,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 864 transitions. [2019-10-07 15:04:18,121 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 864 transitions. Word has length 157 [2019-10-07 15:04:18,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:18,122 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 864 transitions. [2019-10-07 15:04:18,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:04:18,122 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 864 transitions. [2019-10-07 15:04:18,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-07 15:04:18,126 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:18,126 INFO L385 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] [2019-10-07 15:04:18,126 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:18,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:18,127 INFO L82 PathProgramCache]: Analyzing trace with hash 497503347, now seen corresponding path program 1 times [2019-10-07 15:04:18,127 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:18,127 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:18,127 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:18,127 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:18,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:18,961 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:04:18,962 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:18,962 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:18,962 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 15:04:18,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 15:04:18,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 15:04:18,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:04:18,964 INFO L87 Difference]: Start difference. First operand 613 states and 864 transitions. Second operand 28 states. [2019-10-07 15:04:26,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:26,498 INFO L93 Difference]: Finished difference Result 1041 states and 1381 transitions. [2019-10-07 15:04:26,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 15:04:26,498 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 159 [2019-10-07 15:04:26,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:26,505 INFO L225 Difference]: With dead ends: 1041 [2019-10-07 15:04:26,505 INFO L226 Difference]: Without dead ends: 833 [2019-10-07 15:04:26,508 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-07 15:04:26,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2019-10-07 15:04:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 821. [2019-10-07 15:04:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-10-07 15:04:26,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1110 transitions. [2019-10-07 15:04:26,563 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1110 transitions. Word has length 159 [2019-10-07 15:04:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:26,564 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 1110 transitions. [2019-10-07 15:04:26,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 15:04:26,565 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1110 transitions. [2019-10-07 15:04:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 15:04:26,571 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:26,572 INFO L385 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] [2019-10-07 15:04:26,572 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:26,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:26,573 INFO L82 PathProgramCache]: Analyzing trace with hash 853579315, now seen corresponding path program 1 times [2019-10-07 15:04:26,573 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:26,574 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:26,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:26,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:26,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:04:26,911 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:26,911 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:26,911 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 15:04:26,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 15:04:26,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 15:04:26,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:04:26,914 INFO L87 Difference]: Start difference. First operand 821 states and 1110 transitions. Second operand 10 states. [2019-10-07 15:04:26,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:26,990 INFO L93 Difference]: Finished difference Result 830 states and 1120 transitions. [2019-10-07 15:04:26,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:04:26,991 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2019-10-07 15:04:26,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:26,997 INFO L225 Difference]: With dead ends: 830 [2019-10-07 15:04:26,997 INFO L226 Difference]: Without dead ends: 825 [2019-10-07 15:04:26,998 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:04:27,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-10-07 15:04:27,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2019-10-07 15:04:27,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2019-10-07 15:04:27,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1113 transitions. [2019-10-07 15:04:27,054 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1113 transitions. Word has length 163 [2019-10-07 15:04:27,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:27,056 INFO L462 AbstractCegarLoop]: Abstraction has 825 states and 1113 transitions. [2019-10-07 15:04:27,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 15:04:27,057 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1113 transitions. [2019-10-07 15:04:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 15:04:27,063 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:27,063 INFO L385 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] [2019-10-07 15:04:27,064 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:27,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:27,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1264641729, now seen corresponding path program 1 times [2019-10-07 15:04:27,065 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:27,065 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:27,065 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:27,066 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:27,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:27,908 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 15:04:27,908 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:27,909 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:04:27,909 INFO L95 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 [2019-10-07 15:04:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:28,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 2748 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:04:28,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:04:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:28,698 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:04:28,978 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:28,978 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:04:29,018 INFO L162 IcfgInterpreter]: Started Sifa with 150 locations of interest [2019-10-07 15:04:29,019 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:04:29,026 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:04:29,043 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:04:29,043 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:05:08,959 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 664 [2019-10-07 15:05:12,319 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 284 DAG size of output: 231 [2019-10-07 15:05:12,655 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 699 [2019-10-07 15:05:13,035 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 699 [2019-10-07 15:05:13,314 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 699 [2019-10-07 15:05:13,519 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 15:05:14,277 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 991 [2019-10-07 15:05:14,927 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 991 [2019-10-07 15:05:15,556 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 991 [2019-10-07 15:05:15,692 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 15:05:16,324 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 991 [2019-10-07 15:05:17,638 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 993 DAG size of output: 991 [2019-10-07 15:05:18,190 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 991 [2019-10-07 15:05:18,398 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 15:05:18,974 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 991 [2019-10-07 15:05:19,593 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 991 [2019-10-07 15:05:20,161 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 991 [2019-10-07 15:05:20,278 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 15:05:20,851 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 991 [2019-10-07 15:05:20,875 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 547 for LOIs [2019-10-07 15:05:21,279 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 632 [2019-10-07 15:05:21,425 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 632 [2019-10-07 15:05:21,549 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 15:05:22,030 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 924 [2019-10-07 15:05:22,032 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1031 for LOIs [2019-10-07 15:05:22,579 WARN L191 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:23,130 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:23,363 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:24,167 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:24,768 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:25,321 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:25,525 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:26,350 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:26,923 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:27,508 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:27,714 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:28,522 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:29,541 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 1169 DAG size of output: 1031 [2019-10-07 15:05:30,091 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:30,450 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:31,268 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:31,824 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:32,375 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:32,569 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:33,381 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:33,937 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:34,487 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:34,680 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:35,497 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:36,041 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:36,591 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:36,794 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:37,615 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:38,163 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:38,715 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:38,910 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:39,723 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:40,278 WARN L191 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:40,829 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:41,076 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:41,896 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:42,456 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:43,009 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:43,205 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:44,020 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:44,572 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:45,128 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:45,328 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:46,138 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:46,689 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:47,237 WARN L191 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:47,433 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:48,250 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:48,804 WARN L191 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:49,356 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 15:05:49,551 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:50,371 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:51,240 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:52,057 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:52,277 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:53,091 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:54,603 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:05:55,411 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:55,645 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:56,463 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:57,274 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:58,093 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:58,289 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:05:59,105 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:05:59,968 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:00,801 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:01,000 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:01,822 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:03,341 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1169 [2019-10-07 15:06:04,162 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:06:04,367 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:05,193 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:06,659 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1169 [2019-10-07 15:06:07,469 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:06:07,668 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:08,483 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:09,330 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:06:10,153 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:06:10,357 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:11,192 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:06:12,028 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:06:12,860 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:06:13,065 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:13,884 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:06:16,335 WARN L191 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:06:17,147 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:17,358 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:06:18,174 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:19,684 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:06:20,500 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:20,709 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:06:21,538 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:22,352 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:23,164 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:23,363 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:06:24,181 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:26,536 WARN L191 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:06:27,357 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:27,562 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:06:28,383 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:29,850 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:06:30,673 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:30,875 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:06:31,701 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:32,520 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:33,336 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:33,532 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:06:34,340 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:06:35,866 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1171 [2019-10-07 15:06:36,693 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:36,896 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:37,718 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:39,175 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1169 [2019-10-07 15:06:40,001 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:06:40,209 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:41,034 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:42,512 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1169 [2019-10-07 15:06:43,331 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:06:43,529 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:44,349 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:45,742 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1178 DAG size of output: 1169 [2019-10-07 15:06:46,561 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:06:46,775 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:47,598 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:49,090 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1180 DAG size of output: 1171 [2019-10-07 15:06:49,905 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:06:50,118 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:06:50,943 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:51,196 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:06:51,197 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:06:51,204 INFO L168 Benchmark]: Toolchain (without parser) took 161155.41 ms. Allocated memory was 140.0 MB in the beginning and 673.2 MB in the end (delta: 533.2 MB). Free memory was 102.5 MB in the beginning and 490.8 MB in the end (delta: -388.3 MB). Peak memory consumption was 144.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:51,204 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:06:51,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1036.48 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 102.3 MB in the beginning and 136.7 MB in the end (delta: -34.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:51,206 INFO L168 Benchmark]: Boogie Preprocessor took 165.58 ms. Allocated memory is still 205.5 MB. Free memory was 136.7 MB in the beginning and 127.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:51,206 INFO L168 Benchmark]: RCFGBuilder took 4554.82 ms. Allocated memory was 205.5 MB in the beginning and 293.1 MB in the end (delta: 87.6 MB). Free memory was 127.7 MB in the beginning and 228.2 MB in the end (delta: -100.5 MB). Peak memory consumption was 132.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:51,207 INFO L168 Benchmark]: TraceAbstraction took 155392.83 ms. Allocated memory was 293.1 MB in the beginning and 673.2 MB in the end (delta: 380.1 MB). Free memory was 228.2 MB in the beginning and 490.8 MB in the end (delta: -262.6 MB). Peak memory consumption was 117.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:51,215 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1036.48 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 102.3 MB in the beginning and 136.7 MB in the end (delta: -34.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 165.58 ms. Allocated memory is still 205.5 MB. Free memory was 136.7 MB in the beginning and 127.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4554.82 ms. Allocated memory was 205.5 MB in the beginning and 293.1 MB in the end (delta: 87.6 MB). Free memory was 127.7 MB in the beginning and 228.2 MB in the end (delta: -100.5 MB). Peak memory consumption was 132.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 155392.83 ms. Allocated memory was 293.1 MB in the beginning and 673.2 MB in the end (delta: 380.1 MB). Free memory was 228.2 MB in the beginning and 490.8 MB in the end (delta: -262.6 MB). Peak memory consumption was 117.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...