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_spec6_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:00:08,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:00:08,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:00:08,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:00:08,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:00:08,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:00:08,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:00:08,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:00:08,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:00:08,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:00:08,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:00:08,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:00:08,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:00:08,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:00:08,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:00:08,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:00:08,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:00:08,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:00:08,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:00:08,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:00:08,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:00:08,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:00:08,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:00:08,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:00:08,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:00:08,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:00:08,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:00:08,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:00:08,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:00:08,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:00:08,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:00:08,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:00:08,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:00:08,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:00:08,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:00:08,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:00:08,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:00:08,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:00:08,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:00:08,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:00:08,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:00:08,153 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 15:00:08,173 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:00:08,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:00:08,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:00:08,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:00:08,177 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:00:08,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:00:08,177 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:00:08,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:00:08,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:00:08,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:00:08,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:00:08,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:00:08,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:00:08,180 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:00:08,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:00:08,180 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:00:08,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:00:08,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:00:08,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:00:08,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:00:08,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:00:08,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:00:08,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:00:08,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:00:08,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:00:08,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:00:08,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:00:08,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:00:08,183 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 15:00:08,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:00:08,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:00:08,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:00:08,500 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:00:08,501 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:00:08,502 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-07 15:00:08,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874ade04b/81703e833c8e4462a1c7c6eb8f1ce232/FLAG28e90732a [2019-10-07 15:00:09,258 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:00:09,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-07 15:00:09,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874ade04b/81703e833c8e4462a1c7c6eb8f1ce232/FLAG28e90732a [2019-10-07 15:00:09,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874ade04b/81703e833c8e4462a1c7c6eb8f1ce232 [2019-10-07 15:00:09,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:00:09,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:00:09,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:00:09,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:00:09,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:00:09,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:00:09" (1/1) ... [2019-10-07 15:00:09,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67af7f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:09, skipping insertion in model container [2019-10-07 15:00:09,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:00:09" (1/1) ... [2019-10-07 15:00:09,444 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:00:09,513 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:00:10,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:00:10,291 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:00:10,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:00:10,568 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:00:10,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10 WrapperNode [2019-10-07 15:00:10,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:00:10,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:00:10,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:00:10,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:00:10,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10" (1/1) ... [2019-10-07 15:00:10,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10" (1/1) ... [2019-10-07 15:00:10,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10" (1/1) ... [2019-10-07 15:00:10,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10" (1/1) ... [2019-10-07 15:00:10,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10" (1/1) ... [2019-10-07 15:00:10,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10" (1/1) ... [2019-10-07 15:00:10,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10" (1/1) ... [2019-10-07 15:00:10,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:00:10,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:00:10,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:00:10,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:00:10,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10" (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 15:00:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:00:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:00:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:00:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:00:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:00:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:00:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:00:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:00:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:00:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:00:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:00:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:00:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:00:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:00:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:00:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:00:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:00:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:00:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:00:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:00:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:00:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:00:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:00:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:00:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:00:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:00:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:00:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:00:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:00:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:00:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:00:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:00:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:00:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:00:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:00:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:00:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:00:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:00:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:00:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:00:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:00:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:00:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:00:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:00:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:00:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:00:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:00:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:00:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:00:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:00:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:00:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:00:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:00:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:00:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:00:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:00:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:00:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:00:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:00:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:00:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:00:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:00:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:00:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:00:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:00:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:00:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:00:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:00:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:00:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:00:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:00:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:00:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:00:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:00:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:00:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:00:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:00:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:00:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:00:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:00:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:00:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:00:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:00:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:00:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:00:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:00:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:00:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:00:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:00:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:00:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:00:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:00:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:00:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:00:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-07 15:00:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:00:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:00:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:00:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:00:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:00:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:00:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:00:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:00:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:00:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:00:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:00:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:00:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:00:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:00:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:00:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:00:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:00:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:00:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:00:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:00:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:00:10,913 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:00:10,913 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:00:10,913 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:00:10,914 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:00:10,914 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:00:10,915 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:00:10,915 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:00:10,916 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:00:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:00:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:00:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:00:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:00:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:00:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:00:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:00:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:00:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:00:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:00:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:00:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:00:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:00:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:00:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:00:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:00:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:00:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:00:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:00:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:00:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:00:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:00:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:00:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:00:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:00:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:00:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:00:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:00:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:00:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:00:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:00:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:00:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:00:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:00:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:00:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:00:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:00:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:00:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:00:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:00:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:00:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:00:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:00:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:00:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:00:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:00:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:00:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:00:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:00:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:00:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:00:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:00:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:00:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:00:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:00:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:00:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:00:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:00:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:00:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:00:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:00:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:00:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:00:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:00:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:00:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:00:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:00:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:00:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:00:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:00:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:00:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:00:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:00:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:00:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:00:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:00:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:00:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:00:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:00:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:00:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:00:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:00:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:00:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:00:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:00:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:00:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:00:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:00:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:00:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:00:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:00:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:00:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:00:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:00:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:00:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:00:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:00:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:00:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:00:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:00:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:00:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:00:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:00:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:00:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:00:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:00:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:00:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-07 15:00:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:00:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:00:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:00:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:00:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:00:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:00:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:00:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:00:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:00:15,710 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:00:15,710 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:00:15,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:00:15 BoogieIcfgContainer [2019-10-07 15:00:15,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:00:15,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:00:15,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:00:15,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:00:15,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:00:09" (1/3) ... [2019-10-07 15:00:15,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4029f2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:00:15, skipping insertion in model container [2019-10-07 15:00:15,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:10" (2/3) ... [2019-10-07 15:00:15,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4029f2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:00:15, skipping insertion in model container [2019-10-07 15:00:15,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:00:15" (3/3) ... [2019-10-07 15:00:15,721 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2019-10-07 15:00:15,777 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:00:15,789 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:00:15,801 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:00:15,840 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:00:15,840 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:00:15,840 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:00:15,840 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:00:15,840 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:00:15,840 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:00:15,841 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:00:15,841 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:00:15,880 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states. [2019-10-07 15:00:15,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 15:00:15,900 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:15,901 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:15,903 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:15,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:15,909 INFO L82 PathProgramCache]: Analyzing trace with hash -319733925, now seen corresponding path program 1 times [2019-10-07 15:00:15,918 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:15,918 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:15,918 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:15,919 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:16,605 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:16,606 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:16,606 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:00:16,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:00:16,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:00:16,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:00:16,633 INFO L87 Difference]: Start difference. First operand 393 states. Second operand 2 states. [2019-10-07 15:00:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:16,704 INFO L93 Difference]: Finished difference Result 526 states and 630 transitions. [2019-10-07 15:00:16,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:00:16,706 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-07 15:00:16,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:16,736 INFO L225 Difference]: With dead ends: 526 [2019-10-07 15:00:16,736 INFO L226 Difference]: Without dead ends: 345 [2019-10-07 15:00:16,747 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 15:00:16,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-10-07 15:00:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2019-10-07 15:00:16,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-10-07 15:00:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 409 transitions. [2019-10-07 15:00:16,843 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 409 transitions. Word has length 143 [2019-10-07 15:00:16,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:16,846 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 409 transitions. [2019-10-07 15:00:16,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:00:16,846 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 409 transitions. [2019-10-07 15:00:16,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-07 15:00:16,852 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:16,852 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:16,852 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:16,853 INFO L82 PathProgramCache]: Analyzing trace with hash -2053047464, now seen corresponding path program 1 times [2019-10-07 15:00:16,853 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:16,853 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:16,854 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:16,854 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:17,063 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:17,064 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:17,064 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:17,064 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:17,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:17,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:17,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:17,067 INFO L87 Difference]: Start difference. First operand 345 states and 409 transitions. Second operand 3 states. [2019-10-07 15:00:17,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:17,137 INFO L93 Difference]: Finished difference Result 511 states and 598 transitions. [2019-10-07 15:00:17,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:17,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-07 15:00:17,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:17,146 INFO L225 Difference]: With dead ends: 511 [2019-10-07 15:00:17,146 INFO L226 Difference]: Without dead ends: 347 [2019-10-07 15:00:17,149 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 15:00:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-10-07 15:00:17,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-10-07 15:00:17,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-07 15:00:17,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 411 transitions. [2019-10-07 15:00:17,206 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 411 transitions. Word has length 144 [2019-10-07 15:00:17,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:17,208 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 411 transitions. [2019-10-07 15:00:17,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 411 transitions. [2019-10-07 15:00:17,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-07 15:00:17,215 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:17,216 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:17,216 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:17,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:17,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1769939696, now seen corresponding path program 1 times [2019-10-07 15:00:17,217 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:17,217 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:17,217 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:17,217 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:17,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:17,548 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:17,548 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:17,548 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:17,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:17,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:17,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:17,552 INFO L87 Difference]: Start difference. First operand 347 states and 411 transitions. Second operand 3 states. [2019-10-07 15:00:17,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:17,626 INFO L93 Difference]: Finished difference Result 678 states and 832 transitions. [2019-10-07 15:00:17,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:17,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-07 15:00:17,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:17,638 INFO L225 Difference]: With dead ends: 678 [2019-10-07 15:00:17,638 INFO L226 Difference]: Without dead ends: 389 [2019-10-07 15:00:17,646 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 15:00:17,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-07 15:00:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 388. [2019-10-07 15:00:17,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2019-10-07 15:00:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 482 transitions. [2019-10-07 15:00:17,696 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 482 transitions. Word has length 153 [2019-10-07 15:00:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:17,697 INFO L462 AbstractCegarLoop]: Abstraction has 388 states and 482 transitions. [2019-10-07 15:00:17,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:17,698 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 482 transitions. [2019-10-07 15:00:17,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 15:00:17,708 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:17,709 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:17,709 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:17,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:17,710 INFO L82 PathProgramCache]: Analyzing trace with hash -788518016, now seen corresponding path program 1 times [2019-10-07 15:00:17,711 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:17,711 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:17,711 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:17,712 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:17,999 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:17,999 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:18,000 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:18,000 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:18,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:18,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:18,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:18,002 INFO L87 Difference]: Start difference. First operand 388 states and 482 transitions. Second operand 3 states. [2019-10-07 15:00:18,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:18,039 INFO L93 Difference]: Finished difference Result 798 states and 1040 transitions. [2019-10-07 15:00:18,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:18,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-07 15:00:18,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:18,046 INFO L225 Difference]: With dead ends: 798 [2019-10-07 15:00:18,046 INFO L226 Difference]: Without dead ends: 468 [2019-10-07 15:00:18,047 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 15:00:18,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-07 15:00:18,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 467. [2019-10-07 15:00:18,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-07 15:00:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 618 transitions. [2019-10-07 15:00:18,082 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 618 transitions. Word has length 154 [2019-10-07 15:00:18,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:18,084 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 618 transitions. [2019-10-07 15:00:18,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 618 transitions. [2019-10-07 15:00:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-07 15:00:18,087 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:18,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:18,088 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:18,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:18,088 INFO L82 PathProgramCache]: Analyzing trace with hash 657046625, now seen corresponding path program 1 times [2019-10-07 15:00:18,089 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:18,089 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:18,089 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:18,089 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:18,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:18,855 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 15:00:18,855 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:18,856 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:18,856 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-07 15:00:18,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-07 15:00:18,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-07 15:00:18,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-07 15:00:18,859 INFO L87 Difference]: Start difference. First operand 467 states and 618 transitions. Second operand 24 states. [2019-10-07 15:00:26,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:26,907 INFO L93 Difference]: Finished difference Result 1049 states and 1338 transitions. [2019-10-07 15:00:26,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 15:00:26,908 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 157 [2019-10-07 15:00:26,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:26,916 INFO L225 Difference]: With dead ends: 1049 [2019-10-07 15:00:26,916 INFO L226 Difference]: Without dead ends: 893 [2019-10-07 15:00:26,918 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-10-07 15:00:26,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2019-10-07 15:00:26,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 880. [2019-10-07 15:00:26,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2019-10-07 15:00:26,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1114 transitions. [2019-10-07 15:00:26,970 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1114 transitions. Word has length 157 [2019-10-07 15:00:26,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:26,971 INFO L462 AbstractCegarLoop]: Abstraction has 880 states and 1114 transitions. [2019-10-07 15:00:26,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-07 15:00:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1114 transitions. [2019-10-07 15:00:26,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 15:00:26,974 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:26,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:26,975 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:26,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:26,976 INFO L82 PathProgramCache]: Analyzing trace with hash 187493591, now seen corresponding path program 1 times [2019-10-07 15:00:26,976 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:26,976 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:26,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:26,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:26,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:27,381 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 15:00:27,381 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:27,381 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:27,382 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:00:27,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:00:27,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:00:27,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:00:27,384 INFO L87 Difference]: Start difference. First operand 880 states and 1114 transitions. Second operand 14 states. [2019-10-07 15:00:30,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:30,678 INFO L93 Difference]: Finished difference Result 1914 states and 2402 transitions. [2019-10-07 15:00:30,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:00:30,680 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 163 [2019-10-07 15:00:30,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:30,693 INFO L225 Difference]: With dead ends: 1914 [2019-10-07 15:00:30,694 INFO L226 Difference]: Without dead ends: 1623 [2019-10-07 15:00:30,701 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:00:30,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2019-10-07 15:00:30,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1570. [2019-10-07 15:00:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1570 states. [2019-10-07 15:00:30,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1965 transitions. [2019-10-07 15:00:30,830 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1965 transitions. Word has length 163 [2019-10-07 15:00:30,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:30,832 INFO L462 AbstractCegarLoop]: Abstraction has 1570 states and 1965 transitions. [2019-10-07 15:00:30,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:00:30,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1965 transitions. [2019-10-07 15:00:30,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 15:00:30,837 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:30,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:30,837 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:30,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:30,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1447020868, now seen corresponding path program 1 times [2019-10-07 15:00:30,838 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:30,838 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:30,838 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:30,839 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:31,009 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:31,009 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:31,009 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:31,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:31,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:31,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:31,011 INFO L87 Difference]: Start difference. First operand 1570 states and 1965 transitions. Second operand 3 states. [2019-10-07 15:00:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:31,091 INFO L93 Difference]: Finished difference Result 3295 states and 4239 transitions. [2019-10-07 15:00:31,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:31,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-07 15:00:31,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:31,102 INFO L225 Difference]: With dead ends: 3295 [2019-10-07 15:00:31,102 INFO L226 Difference]: Without dead ends: 1783 [2019-10-07 15:00:31,108 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 15:00:31,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2019-10-07 15:00:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1781. [2019-10-07 15:00:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2019-10-07 15:00:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2329 transitions. [2019-10-07 15:00:31,207 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2329 transitions. Word has length 179 [2019-10-07 15:00:31,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:31,208 INFO L462 AbstractCegarLoop]: Abstraction has 1781 states and 2329 transitions. [2019-10-07 15:00:31,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:31,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2329 transitions. [2019-10-07 15:00:31,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-07 15:00:31,213 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:31,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:31,214 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:31,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:31,214 INFO L82 PathProgramCache]: Analyzing trace with hash 497917420, now seen corresponding path program 1 times [2019-10-07 15:00:31,214 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:31,214 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:31,215 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:31,215 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:31,700 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:31,700 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:31,700 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:31,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:31,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:31,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:31,703 INFO L87 Difference]: Start difference. First operand 1781 states and 2329 transitions. Second operand 12 states. [2019-10-07 15:00:35,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:35,760 INFO L93 Difference]: Finished difference Result 3756 states and 5075 transitions. [2019-10-07 15:00:35,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:00:35,761 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 180 [2019-10-07 15:00:35,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:35,777 INFO L225 Difference]: With dead ends: 3756 [2019-10-07 15:00:35,778 INFO L226 Difference]: Without dead ends: 2778 [2019-10-07 15:00:35,783 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:00:35,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2019-10-07 15:00:35,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2195. [2019-10-07 15:00:35,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2195 states. [2019-10-07 15:00:35,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3046 transitions. [2019-10-07 15:00:35,947 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3046 transitions. Word has length 180 [2019-10-07 15:00:35,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:35,947 INFO L462 AbstractCegarLoop]: Abstraction has 2195 states and 3046 transitions. [2019-10-07 15:00:35,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3046 transitions. [2019-10-07 15:00:35,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 15:00:35,955 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:35,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:35,956 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:35,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:35,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1271157435, now seen corresponding path program 1 times [2019-10-07 15:00:35,957 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:35,957 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:35,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:35,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:36,145 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:36,145 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:36,145 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:36,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:36,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:36,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:36,146 INFO L87 Difference]: Start difference. First operand 2195 states and 3046 transitions. Second operand 3 states. [2019-10-07 15:00:36,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:36,263 INFO L93 Difference]: Finished difference Result 4621 states and 6560 transitions. [2019-10-07 15:00:36,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:36,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-07 15:00:36,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:36,280 INFO L225 Difference]: With dead ends: 4621 [2019-10-07 15:00:36,280 INFO L226 Difference]: Without dead ends: 2488 [2019-10-07 15:00:36,290 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 15:00:36,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2019-10-07 15:00:36,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2487. [2019-10-07 15:00:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2487 states. [2019-10-07 15:00:36,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3558 transitions. [2019-10-07 15:00:36,439 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3558 transitions. Word has length 181 [2019-10-07 15:00:36,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:36,439 INFO L462 AbstractCegarLoop]: Abstraction has 2487 states and 3558 transitions. [2019-10-07 15:00:36,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:36,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3558 transitions. [2019-10-07 15:00:36,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-07 15:00:36,450 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:36,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:36,451 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:36,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:36,452 INFO L82 PathProgramCache]: Analyzing trace with hash -247264241, now seen corresponding path program 1 times [2019-10-07 15:00:36,452 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:36,452 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:36,453 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:36,453 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:36,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:36,711 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:36,711 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:36,712 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:36,712 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:36,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:36,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:36,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:36,714 INFO L87 Difference]: Start difference. First operand 2487 states and 3558 transitions. Second operand 12 states. [2019-10-07 15:00:41,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:41,300 INFO L93 Difference]: Finished difference Result 4593 states and 6527 transitions. [2019-10-07 15:00:41,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:00:41,302 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 183 [2019-10-07 15:00:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:41,319 INFO L225 Difference]: With dead ends: 4593 [2019-10-07 15:00:41,319 INFO L226 Difference]: Without dead ends: 2913 [2019-10-07 15:00:41,326 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:00:41,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2019-10-07 15:00:41,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2330. [2019-10-07 15:00:41,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2330 states. [2019-10-07 15:00:41,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3271 transitions. [2019-10-07 15:00:41,477 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3271 transitions. Word has length 183 [2019-10-07 15:00:41,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:41,477 INFO L462 AbstractCegarLoop]: Abstraction has 2330 states and 3271 transitions. [2019-10-07 15:00:41,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:41,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3271 transitions. [2019-10-07 15:00:41,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-07 15:00:41,497 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:41,497 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:41,498 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:41,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:41,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1101707994, now seen corresponding path program 1 times [2019-10-07 15:00:41,498 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:41,499 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:41,499 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:41,499 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:41,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 15:00:42,364 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:42,364 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:00:42,364 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 15:00:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:42,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 3043 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 15:00:43,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:00:43,264 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:43,265 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:00:43,579 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:43,579 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:00:43,611 INFO L162 IcfgInterpreter]: Started Sifa with 178 locations of interest [2019-10-07 15:00:43,611 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:00:43,617 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:00:43,625 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:00:43,626 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:01:41,095 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2019-10-07 15:01:44,978 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 321 DAG size of output: 261 [2019-10-07 15:01:45,397 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 743 [2019-10-07 15:01:45,855 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 743 [2019-10-07 15:01:46,176 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 743 [2019-10-07 15:01:46,355 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 15:01:47,037 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:47,742 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:48,419 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:48,561 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 15:01:49,160 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:50,458 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1046 DAG size of output: 1044 [2019-10-07 15:01:51,067 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:51,206 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 15:01:51,857 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:52,530 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:53,145 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:53,276 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 15:01:53,941 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:53,968 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 568 for LOIs [2019-10-07 15:01:54,326 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 666 [2019-10-07 15:01:54,436 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 666 [2019-10-07 15:01:54,562 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 15:01:55,075 WARN L191 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 15:01:55,077 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1095 for LOIs [2019-10-07 15:01:55,674 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:01:56,272 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:01:56,579 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:01:57,556 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:01:58,204 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:01:58,809 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:01:59,118 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:00,136 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:00,769 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:01,820 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:02,068 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:03,041 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:04,045 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 1286 DAG size of output: 1095 [2019-10-07 15:02:04,639 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:05,044 WARN L191 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:06,023 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:06,635 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:07,259 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:07,540 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:08,519 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:09,117 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:09,713 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:09,954 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:10,956 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:11,553 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:12,152 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:12,389 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:13,369 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:13,975 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:14,573 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:14,829 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:15,806 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:16,400 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:17,006 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:17,246 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:18,211 WARN L191 SmtUtils]: Spent 963.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:18,811 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:19,407 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:19,646 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:20,628 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:21,222 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:21,819 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:22,060 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:23,036 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:23,626 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:24,225 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:24,468 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:25,440 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:26,043 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:26,641 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1095 [2019-10-07 15:02:26,881 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:27,857 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:28,965 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:29,944 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:30,192 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:31,171 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:32,974 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:02:33,951 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:34,213 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:35,175 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:36,166 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:37,138 WARN L191 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:37,379 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:02:38,349 WARN L191 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:39,372 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:02:40,344 WARN L191 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:02:40,594 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:02:41,580 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:02:43,181 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:02:44,165 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:02:44,419 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:02:45,397 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:02:47,180 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 15:02:48,159 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:02:48,405 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:02:49,382 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:02:50,379 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:02:51,367 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:02:51,614 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:02:52,593 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:02:53,569 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:02:54,549 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:02:54,799 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:02:55,784 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 15:02:58,450 WARN L191 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:02:59,423 WARN L191 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:02:59,684 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:03:00,663 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:02,461 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:03:03,439 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:03,703 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:03:04,667 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:05,637 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:06,621 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:06,862 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:03:07,832 WARN L191 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:10,495 WARN L191 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:03:11,474 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:11,733 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:03:12,711 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:14,484 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:03:15,450 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:15,703 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:03:16,679 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:17,656 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:18,622 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:18,860 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2019-10-07 15:03:19,820 WARN L191 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:03:21,628 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 15:03:22,621 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:03:22,871 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:03:23,844 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:03:25,622 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 15:03:26,612 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:03:26,860 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:03:27,849 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:03:29,614 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 15:03:30,591 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:03:30,836 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:03:31,808 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:03:33,499 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 15:03:34,458 WARN L191 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:03:34,702 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:03:35,677 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:03:37,337 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 15:03:38,302 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:03:38,548 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 638 [2019-10-07 15:03:39,509 WARN L191 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 15:03:39,774 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:03:39,775 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 15:03:39,782 INFO L168 Benchmark]: Toolchain (without parser) took 210359.29 ms. Allocated memory was 145.2 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 100.2 MB in the beginning and 581.3 MB in the end (delta: -481.1 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 15:03:39,783 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 15:03:39,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1144.23 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.0 MB in the beginning and 137.0 MB in the end (delta: -37.0 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:39,784 INFO L168 Benchmark]: Boogie Preprocessor took 218.76 ms. Allocated memory is still 203.9 MB. Free memory was 137.0 MB in the beginning and 127.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:39,785 INFO L168 Benchmark]: RCFGBuilder took 4922.77 ms. Allocated memory was 203.9 MB in the beginning and 290.5 MB in the end (delta: 86.5 MB). Free memory was 127.9 MB in the beginning and 80.9 MB in the end (delta: 47.0 MB). Peak memory consumption was 133.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:39,786 INFO L168 Benchmark]: TraceAbstraction took 204066.75 ms. Allocated memory was 290.5 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 80.9 MB in the beginning and 581.3 MB in the end (delta: -500.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2019-10-07 15:03:39,789 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1144.23 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.0 MB in the beginning and 137.0 MB in the end (delta: -37.0 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 218.76 ms. Allocated memory is still 203.9 MB. Free memory was 137.0 MB in the beginning and 127.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4922.77 ms. Allocated memory was 203.9 MB in the beginning and 290.5 MB in the end (delta: 86.5 MB). Free memory was 127.9 MB in the beginning and 80.9 MB in the end (delta: 47.0 MB). Peak memory consumption was 133.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204066.75 ms. Allocated memory was 290.5 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 80.9 MB in the beginning and 581.3 MB in the end (delta: -500.4 MB). Peak memory consumption was 1.5 GB. 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...