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_spec11_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:11:27,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:11:27,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:11:27,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:11:27,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:11:27,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:11:27,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:11:27,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:11:27,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:11:27,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:11:27,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:11:27,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:11:27,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:11:27,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:11:27,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:11:27,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:11:27,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:11:27,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:11:27,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:11:27,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:11:27,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:11:27,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:11:27,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:11:27,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:11:27,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:11:27,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:11:27,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:11:27,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:11:27,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:11:27,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:11:27,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:11:27,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:11:27,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:11:27,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:11:27,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:11:27,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:11:27,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:11:27,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:11:27,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:11:27,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:11:27,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:11:27,451 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:11:27,465 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:11:27,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:11:27,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:11:27,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:11:27,467 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:11:27,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:11:27,467 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:11:27,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:11:27,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:11:27,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:11:27,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:11:27,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:11:27,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:11:27,469 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:11:27,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:11:27,469 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:11:27,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:11:27,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:11:27,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:11:27,470 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:11:27,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:11:27,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:11:27,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:11:27,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:11:27,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:11:27,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:11:27,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:11:27,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:11:27,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:11:27,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:11:27,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:11:27,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:11:27,813 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:11:27,813 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:11:27,814 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product20.cil.c [2019-10-15 03:11:27,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5926db06f/e679dd733bd04de2929580577051f303/FLAG8a84408ba [2019-10-15 03:11:28,596 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:11:28,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product20.cil.c [2019-10-15 03:11:28,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5926db06f/e679dd733bd04de2929580577051f303/FLAG8a84408ba [2019-10-15 03:11:28,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5926db06f/e679dd733bd04de2929580577051f303 [2019-10-15 03:11:28,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:11:28,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:11:28,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:11:28,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:11:28,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:11:28,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:11:28" (1/1) ... [2019-10-15 03:11:28,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49584703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:28, skipping insertion in model container [2019-10-15 03:11:28,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:11:28" (1/1) ... [2019-10-15 03:11:28,776 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:11:28,866 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:11:29,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:11:29,673 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:11:29,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:11:29,894 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:11:29,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29 WrapperNode [2019-10-15 03:11:29,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:11:29,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:11:29,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:11:29,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:11:29,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29" (1/1) ... [2019-10-15 03:11:29,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29" (1/1) ... [2019-10-15 03:11:29,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29" (1/1) ... [2019-10-15 03:11:29,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29" (1/1) ... [2019-10-15 03:11:29,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29" (1/1) ... [2019-10-15 03:11:30,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29" (1/1) ... [2019-10-15 03:11:30,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29" (1/1) ... [2019-10-15 03:11:30,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:11:30,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:11:30,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:11:30,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:11:30,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:11:30,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:11:30,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:11:30,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:11:30,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:11:30,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:11:30,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:11:30,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:11:30,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:11:30,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:11:30,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:11:30,137 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:11:30,137 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:11:30,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:11:30,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:11:30,138 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:11:30,138 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:11:30,138 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:11:30,139 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:11:30,139 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:11:30,140 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:11:30,140 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:11:30,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:11:30,141 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:11:30,141 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:11:30,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:11:30,141 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:11:30,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:11:30,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:11:30,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:11:30,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:11:30,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:11:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:11:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:11:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:11:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:11:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:11:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:11:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:11:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:11:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:11:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:11:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:11:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:11:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:11:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:11:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:11:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:11:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:11:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:11:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:11:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:11:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:11:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:11:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:11:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:11:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:11:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:11:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:11:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:11:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:11:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:11:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:11:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:11:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:11:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 03:11:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:11:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:11:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:11:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:11:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:11:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:11:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:11:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 03:11:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:11:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:11:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:11:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:11:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:11:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:11:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:11:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:11:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:11:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:11:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:11:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:11:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:11:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:11:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:11:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:11:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:11:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:11:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:11:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:11:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:11:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:11:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:11:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:11:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:11:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:11:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:11:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:11:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:11:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:11:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:11:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:11:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:11:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:11:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:11:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:11:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:11:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:11:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:11:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:11:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:11:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:11:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:11:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:11:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:11:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:11:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:11:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:11:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:11:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:11:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:11:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:11:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:11:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:11:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:11:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:11:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:11:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:11:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:11:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:11:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:11:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:11:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:11:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:11:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:11:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:11:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:11:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:11:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:11:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:11:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:11:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:11:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:11:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:11:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:11:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:11:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:11:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:11:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:11:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:11:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:11:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:11:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:11:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:11:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:11:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:11:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:11:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:11:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:11:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:11:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:11:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:11:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:11:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:11:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:11:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:11:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:11:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:11:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:11:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:11:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:11:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:11:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:11:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:11:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:11:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:11:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:11:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:11:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:11:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:11:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:11:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:11:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:11:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:11:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:11:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:11:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:11:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:11:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:11:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:11:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:11:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:11:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:11:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 03:11:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:11:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:11:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:11:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:11:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:11:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:11:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:11:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:11:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:11:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:11:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:11:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:11:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:11:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:11:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:11:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:11:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:11:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:11:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:11:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:11:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:11:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 03:11:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:11:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:11:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:11:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:11:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:11:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:11:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:11:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:11:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:11:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:11:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:11:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:11:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:11:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:11:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:11:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:11:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:11:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:11:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:11:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:11:35,086 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:11:35,086 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:11:35,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:11:35 BoogieIcfgContainer [2019-10-15 03:11:35,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:11:35,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:11:35,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:11:35,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:11:35,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:11:28" (1/3) ... [2019-10-15 03:11:35,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec67dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:11:35, skipping insertion in model container [2019-10-15 03:11:35,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:29" (2/3) ... [2019-10-15 03:11:35,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec67dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:11:35, skipping insertion in model container [2019-10-15 03:11:35,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:11:35" (3/3) ... [2019-10-15 03:11:35,101 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product20.cil.c [2019-10-15 03:11:35,113 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:11:35,128 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:11:35,140 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:11:35,192 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:11:35,192 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:11:35,192 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:11:35,192 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:11:35,193 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:11:35,193 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:11:35,193 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:11:35,194 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:11:35,225 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2019-10-15 03:11:35,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-15 03:11:35,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:35,247 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:35,249 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:35,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:35,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1462747666, now seen corresponding path program 1 times [2019-10-15 03:11:35,263 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:35,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447395247] [2019-10-15 03:11:35,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:35,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:35,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:35,957 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447395247] [2019-10-15 03:11:35,958 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:35,958 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:11:35,959 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519651151] [2019-10-15 03:11:35,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:11:35,969 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:35,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:11:35,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:11:35,988 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 2 states. [2019-10-15 03:11:36,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:36,107 INFO L93 Difference]: Finished difference Result 526 states and 626 transitions. [2019-10-15 03:11:36,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:11:36,110 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 153 [2019-10-15 03:11:36,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:36,144 INFO L225 Difference]: With dead ends: 526 [2019-10-15 03:11:36,145 INFO L226 Difference]: Without dead ends: 345 [2019-10-15 03:11:36,159 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:11:36,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-10-15 03:11:36,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2019-10-15 03:11:36,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-10-15 03:11:36,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 406 transitions. [2019-10-15 03:11:36,245 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 406 transitions. Word has length 153 [2019-10-15 03:11:36,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:36,248 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 406 transitions. [2019-10-15 03:11:36,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:11:36,248 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 406 transitions. [2019-10-15 03:11:36,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 03:11:36,255 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:36,256 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:36,256 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:36,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:36,257 INFO L82 PathProgramCache]: Analyzing trace with hash -720746054, now seen corresponding path program 1 times [2019-10-15 03:11:36,257 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:36,257 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216607096] [2019-10-15 03:11:36,257 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:36,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:36,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:36,631 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216607096] [2019-10-15 03:11:36,632 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:36,632 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:11:36,632 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400320114] [2019-10-15 03:11:36,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:11:36,635 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:36,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:11:36,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:36,635 INFO L87 Difference]: Start difference. First operand 345 states and 406 transitions. Second operand 3 states. [2019-10-15 03:11:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:36,689 INFO L93 Difference]: Finished difference Result 511 states and 592 transitions. [2019-10-15 03:11:36,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:11:36,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-15 03:11:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:36,693 INFO L225 Difference]: With dead ends: 511 [2019-10-15 03:11:36,694 INFO L226 Difference]: Without dead ends: 347 [2019-10-15 03:11:36,696 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:36,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-10-15 03:11:36,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-10-15 03:11:36,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-15 03:11:36,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 408 transitions. [2019-10-15 03:11:36,728 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 408 transitions. Word has length 154 [2019-10-15 03:11:36,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:36,729 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 408 transitions. [2019-10-15 03:11:36,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:11:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 408 transitions. [2019-10-15 03:11:36,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 03:11:36,734 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:36,735 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:36,735 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:36,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:36,735 INFO L82 PathProgramCache]: Analyzing trace with hash 227599931, now seen corresponding path program 1 times [2019-10-15 03:11:36,736 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:36,736 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514735732] [2019-10-15 03:11:36,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:36,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:36,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:37,001 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514735732] [2019-10-15 03:11:37,001 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:37,001 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:11:37,002 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947480500] [2019-10-15 03:11:37,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:11:37,003 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:37,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:11:37,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:37,003 INFO L87 Difference]: Start difference. First operand 347 states and 408 transitions. Second operand 3 states. [2019-10-15 03:11:37,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:37,041 INFO L93 Difference]: Finished difference Result 678 states and 826 transitions. [2019-10-15 03:11:37,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:11:37,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-10-15 03:11:37,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:37,048 INFO L225 Difference]: With dead ends: 678 [2019-10-15 03:11:37,049 INFO L226 Difference]: Without dead ends: 389 [2019-10-15 03:11:37,051 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-15 03:11:37,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 388. [2019-10-15 03:11:37,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2019-10-15 03:11:37,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 479 transitions. [2019-10-15 03:11:37,092 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 479 transitions. Word has length 163 [2019-10-15 03:11:37,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:37,093 INFO L462 AbstractCegarLoop]: Abstraction has 388 states and 479 transitions. [2019-10-15 03:11:37,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:11:37,093 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 479 transitions. [2019-10-15 03:11:37,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 03:11:37,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:37,098 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:37,098 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:37,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:37,099 INFO L82 PathProgramCache]: Analyzing trace with hash 2100256523, now seen corresponding path program 1 times [2019-10-15 03:11:37,099 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:37,099 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447332307] [2019-10-15 03:11:37,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:37,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:37,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:37,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447332307] [2019-10-15 03:11:37,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:37,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:11:37,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865756268] [2019-10-15 03:11:37,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:11:37,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:37,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:11:37,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:37,404 INFO L87 Difference]: Start difference. First operand 388 states and 479 transitions. Second operand 3 states. [2019-10-15 03:11:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:37,446 INFO L93 Difference]: Finished difference Result 798 states and 1034 transitions. [2019-10-15 03:11:37,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:11:37,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-15 03:11:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:37,451 INFO L225 Difference]: With dead ends: 798 [2019-10-15 03:11:37,452 INFO L226 Difference]: Without dead ends: 468 [2019-10-15 03:11:37,454 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:37,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-15 03:11:37,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 467. [2019-10-15 03:11:37,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-15 03:11:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 615 transitions. [2019-10-15 03:11:37,550 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 615 transitions. Word has length 164 [2019-10-15 03:11:37,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:37,551 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 615 transitions. [2019-10-15 03:11:37,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:11:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 615 transitions. [2019-10-15 03:11:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 03:11:37,560 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:37,561 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:37,561 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:37,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:37,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1897723355, now seen corresponding path program 1 times [2019-10-15 03:11:37,562 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:37,563 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39759599] [2019-10-15 03:11:37,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:37,564 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:37,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:37,841 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:37,842 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39759599] [2019-10-15 03:11:37,842 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:37,842 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:11:37,843 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774076744] [2019-10-15 03:11:37,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:11:37,844 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:37,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:11:37,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:37,845 INFO L87 Difference]: Start difference. First operand 467 states and 615 transitions. Second operand 3 states. [2019-10-15 03:11:37,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:37,886 INFO L93 Difference]: Finished difference Result 1029 states and 1432 transitions. [2019-10-15 03:11:37,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:11:37,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-15 03:11:37,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:37,894 INFO L225 Difference]: With dead ends: 1029 [2019-10-15 03:11:37,894 INFO L226 Difference]: Without dead ends: 620 [2019-10-15 03:11:37,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:37,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2019-10-15 03:11:37,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 619. [2019-10-15 03:11:37,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-15 03:11:37,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 875 transitions. [2019-10-15 03:11:37,941 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 875 transitions. Word has length 165 [2019-10-15 03:11:37,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:37,943 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 875 transitions. [2019-10-15 03:11:37,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:11:37,943 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 875 transitions. [2019-10-15 03:11:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-15 03:11:37,948 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:37,948 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:37,949 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:37,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:37,949 INFO L82 PathProgramCache]: Analyzing trace with hash 426954944, now seen corresponding path program 1 times [2019-10-15 03:11:37,949 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:37,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386512984] [2019-10-15 03:11:37,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:37,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:37,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:11:38,886 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386512984] [2019-10-15 03:11:38,887 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:38,887 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 03:11:38,888 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069044982] [2019-10-15 03:11:38,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 03:11:38,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:38,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 03:11:38,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:11:38,891 INFO L87 Difference]: Start difference. First operand 619 states and 875 transitions. Second operand 28 states. [2019-10-15 03:11:47,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:47,353 INFO L93 Difference]: Finished difference Result 1008 states and 1353 transitions. [2019-10-15 03:11:47,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-15 03:11:47,354 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 167 [2019-10-15 03:11:47,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:47,366 INFO L225 Difference]: With dead ends: 1008 [2019-10-15 03:11:47,366 INFO L226 Difference]: Without dead ends: 854 [2019-10-15 03:11:47,370 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 03:11:47,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2019-10-15 03:11:47,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 842. [2019-10-15 03:11:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2019-10-15 03:11:47,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1152 transitions. [2019-10-15 03:11:47,444 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1152 transitions. Word has length 167 [2019-10-15 03:11:47,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:47,449 INFO L462 AbstractCegarLoop]: Abstraction has 842 states and 1152 transitions. [2019-10-15 03:11:47,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 03:11:47,450 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1152 transitions. [2019-10-15 03:11:47,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-15 03:11:47,458 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:47,458 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:47,459 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:47,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:47,459 INFO L82 PathProgramCache]: Analyzing trace with hash -798172773, now seen corresponding path program 1 times [2019-10-15 03:11:47,460 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:47,460 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694491745] [2019-10-15 03:11:47,460 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:47,461 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:47,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:47,837 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:11:47,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694491745] [2019-10-15 03:11:47,838 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:47,839 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:11:47,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538743043] [2019-10-15 03:11:47,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:11:47,840 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:47,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:11:47,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:11:47,841 INFO L87 Difference]: Start difference. First operand 842 states and 1152 transitions. Second operand 10 states. [2019-10-15 03:11:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:47,912 INFO L93 Difference]: Finished difference Result 851 states and 1162 transitions. [2019-10-15 03:11:47,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:11:47,913 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2019-10-15 03:11:47,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:47,920 INFO L225 Difference]: With dead ends: 851 [2019-10-15 03:11:47,920 INFO L226 Difference]: Without dead ends: 848 [2019-10-15 03:11:47,922 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:11:47,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2019-10-15 03:11:47,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2019-10-15 03:11:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2019-10-15 03:11:47,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1157 transitions. [2019-10-15 03:11:47,968 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1157 transitions. Word has length 171 [2019-10-15 03:11:47,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:47,970 INFO L462 AbstractCegarLoop]: Abstraction has 848 states and 1157 transitions. [2019-10-15 03:11:47,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:11:47,970 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1157 transitions. [2019-10-15 03:11:47,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 03:11:47,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:47,976 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:47,976 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:47,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:47,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1487517778, now seen corresponding path program 1 times [2019-10-15 03:11:47,977 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:47,977 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791385202] [2019-10-15 03:11:47,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:47,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:47,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:49,493 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:11:49,493 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791385202] [2019-10-15 03:11:49,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593246634] [2019-10-15 03:11:49,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:11:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:50,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 2789 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:11:50,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:11:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:50,233 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:11:50,540 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:50,540 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1987367740] [2019-10-15 03:11:50,581 INFO L162 IcfgInterpreter]: Started Sifa with 160 locations of interest [2019-10-15 03:11:50,581 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:11:50,588 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:11:50,597 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:11:50,597 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs