java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain IntervalDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 16:32:34,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 16:32:34,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 16:32:34,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 16:32:34,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 16:32:34,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 16:32:34,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 16:32:34,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 16:32:34,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 16:32:34,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 16:32:34,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 16:32:34,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 16:32:34,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 16:32:34,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 16:32:34,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 16:32:34,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 16:32:34,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 16:32:34,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 16:32:34,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 16:32:34,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 16:32:34,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 16:32:34,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 16:32:34,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 16:32:34,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 16:32:34,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 16:32:34,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 16:32:34,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 16:32:34,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 16:32:34,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 16:32:34,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 16:32:34,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 16:32:34,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 16:32:34,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 16:32:34,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 16:32:34,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 16:32:34,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 16:32:34,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 16:32:34,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 16:32:34,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 16:32:34,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 16:32:34,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 16:32:34,319 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 [2019-09-20 16:32:34,349 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 16:32:34,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 16:32:34,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 16:32:34,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 16:32:34,352 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 16:32:34,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 16:32:34,352 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 16:32:34,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 16:32:34,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 16:32:34,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 16:32:34,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 16:32:34,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 16:32:34,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 16:32:34,355 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 16:32:34,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 16:32:34,355 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 16:32:34,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 16:32:34,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 16:32:34,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 16:32:34,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 16:32:34,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 16:32:34,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 16:32:34,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 16:32:34,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 16:32:34,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 16:32:34,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 16:32:34,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 16:32:34,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 16:32:34,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain 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: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 16:32:34,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 16:32:34,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 16:32:34,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 16:32:34,426 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 16:32:34,426 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 16:32:34,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product25.cil.c [2019-09-20 16:32:34,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e1eb8992/aa267ee1e916497cb3bcfcdf145319c2/FLAGf4e858d01 [2019-09-20 16:32:34,947 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 16:32:34,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product25.cil.c [2019-09-20 16:32:34,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e1eb8992/aa267ee1e916497cb3bcfcdf145319c2/FLAGf4e858d01 [2019-09-20 16:32:35,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e1eb8992/aa267ee1e916497cb3bcfcdf145319c2 [2019-09-20 16:32:35,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 16:32:35,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 16:32:35,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 16:32:35,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 16:32:35,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 16:32:35,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 04:32:35" (1/1) ... [2019-09-20 16:32:35,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f64ee81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35, skipping insertion in model container [2019-09-20 16:32:35,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 04:32:35" (1/1) ... [2019-09-20 16:32:35,294 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 16:32:35,355 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 16:32:35,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 16:32:35,786 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 16:32:35,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 16:32:35,928 INFO L192 MainTranslator]: Completed translation [2019-09-20 16:32:35,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35 WrapperNode [2019-09-20 16:32:35,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 16:32:35,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 16:32:35,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 16:32:35,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 16:32:35,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35" (1/1) ... [2019-09-20 16:32:35,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35" (1/1) ... [2019-09-20 16:32:35,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35" (1/1) ... [2019-09-20 16:32:35,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35" (1/1) ... [2019-09-20 16:32:35,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35" (1/1) ... [2019-09-20 16:32:35,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35" (1/1) ... [2019-09-20 16:32:35,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35" (1/1) ... [2019-09-20 16:32:36,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 16:32:36,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 16:32:36,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 16:32:36,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 16:32:36,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:32:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 16:32:36,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 16:32:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 16:32:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 16:32:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 16:32:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 16:32:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 16:32:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 16:32:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 16:32:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 16:32:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 16:32:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 16:32:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 16:32:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 16:32:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 16:32:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 16:32:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 16:32:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 16:32:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 16:32:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 16:32:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 16:32:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 16:32:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 16:32:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 16:32:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 16:32:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 16:32:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 16:32:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 16:32:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 16:32:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 16:32:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 16:32:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 16:32:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 16:32:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 16:32:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 16:32:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 16:32:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 16:32:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 16:32:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 16:32:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 16:32:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 16:32:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 16:32:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 16:32:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 16:32:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 16:32:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 16:32:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 16:32:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 16:32:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 16:32:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 16:32:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 16:32:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 16:32:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 16:32:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 16:32:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 16:32:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 16:32:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 16:32:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 16:32:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 16:32:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 16:32:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 16:32:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 16:32:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 16:32:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 16:32:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 16:32:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 16:32:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 16:32:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 16:32:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 16:32:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 16:32:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 16:32:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 16:32:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 16:32:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 16:32:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 16:32:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 16:32:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 16:32:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 16:32:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 16:32:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 16:32:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 16:32:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 16:32:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 16:32:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 16:32:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 16:32:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 16:32:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 16:32:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 16:32:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 16:32:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 16:32:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 16:32:37,473 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 16:32:37,473 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 16:32:37,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 04:32:37 BoogieIcfgContainer [2019-09-20 16:32:37,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 16:32:37,475 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 16:32:37,476 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 16:32:37,476 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 16:32:37,477 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 04:32:37" (1/1) ... [2019-09-20 16:32:37,477 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 16:32:37,505 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 16:32:37,505 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 16:32:37,515 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 16:32:37,526 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 16:32:37,527 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 16:32:56,764 WARN L191 SmtUtils]: Spent 12.08 s on a formula simplification that was a NOOP. DAG size: 464 [2019-09-20 16:32:58,482 WARN L191 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-20 16:33:02,121 WARN L191 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 472 DAG size of output: 422 [2019-09-20 16:33:02,361 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-09-20 16:33:02,371 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 112 for LOIs [2019-09-20 16:33:02,422 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 112 for LOIs [2019-09-20 16:33:02,427 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 112 for LOIs [2019-09-20 16:33:02,854 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-20 16:33:03,164 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-20 16:33:03,502 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-20 16:33:03,850 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-20 16:33:04,191 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-20 16:33:04,511 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-20 16:33:05,612 WARN L191 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-20 16:33:06,522 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-20 16:33:06,836 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-20 16:33:07,742 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126 [2019-09-20 16:33:08,692 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-20 16:33:09,660 WARN L191 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-20 16:33:09,967 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-20 16:33:10,887 WARN L191 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126 [2019-09-20 16:33:11,817 WARN L191 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-20 16:33:12,712 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-20 16:33:13,017 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-20 16:33:13,905 WARN L191 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126 [2019-09-20 16:33:14,822 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-20 16:33:15,699 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-20 16:33:16,015 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-20 16:33:16,897 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126 [2019-09-20 16:33:16,901 INFO L199 IcfgInterpreter]: Interpreting procedure cleanup with input of size 1 for LOIs [2019-09-20 16:33:16,905 INFO L199 IcfgInterpreter]: Interpreting procedure timeShift with input of size 106 for LOIs [2019-09-20 16:33:17,144 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-20 16:33:17,803 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2019-09-20 16:33:18,027 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-20 16:33:18,028 INFO L199 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification1_spec__1 with input of size 100 for LOIs [2019-09-20 16:33:18,036 INFO L199 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 100 for LOIs [2019-09-20 16:33:18,255 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-20 16:33:18,255 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 16:33:18,255 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 16:33:18,257 INFO L193 IcfgInterpreter]: Reachable states at location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 270#(and (<= |#t~string58.offset| 0) (<= 0 |#t~string27.offset|) (<= ~head~0.base 0) (<= 0 |#t~string19.offset|) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= 0 |#t~string70.offset|) (<= 0 |#t~string17.offset|) (<= |#t~string67.offset| 0) (<= |#t~string31.offset| 0) (<= ~systemActive~0 1) (<= ~head~0.offset 0) (<= 0 |#t~string67.offset|) (<= 0 |#t~string60.offset|) (<= |#t~string70.offset| 0) (<= |#t~string56.offset| 0) (<= 0 |#t~string59.offset|) (<= 0 |#t~string21.offset|) (<= |#t~string1.offset| 0) (<= |#t~string57.offset| 0) (<= 0 |#t~string69.offset|) (<= 0 |#t~string1.offset|) (<= 0 ~head~0.base) (<= |#NULL.offset| 0) (<= |#t~string7.offset| 0) (<= 0 ~methaneLevelCritical~0) (<= |#t~string9.offset| 0) (<= 0 |#t~string61.offset|) (<= |#t~string65.offset| 0) (<= |#t~string27.offset| 0) (<= 0 |#t~string65.offset|) (<= 0 |#t~string56.offset|) (<= |#t~string66.offset| 0) (<= 0 |#t~string7.offset|) (<= 0 |#t~string9.offset|) (<= |#t~string21.offset| 0) (<= |#t~string61.offset| 0) (<= |#t~string59.offset| 0) (<= 0 |#t~string23.offset|) (<= 0 |#NULL.offset|) (<= |#t~string69.offset| 0) (<= |#t~string60.offset| 0) (<= ~cleanupTimeShifts~0 4) (<= 0 |#t~string29.offset|) (<= 0 |#t~string5.offset|) (<= |#t~string3.offset| 0) (<= |#t~string5.offset| 0) (<= ~methaneLevelCritical~0 1) (<= |#NULL.base| 0) (<= 0 |#t~string66.offset|) (<= 1 ~systemActive~0) (<= 0 |#t~string31.offset|) (<= |#t~string23.offset| 0) (<= |#t~string17.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string29.offset| 0) (<= |#t~string19.offset| 0) (<= |#t~string68.offset| 0) (<= 0 |#t~string3.offset|) (<= 0 |#t~string25.offset|) (<= |#t~string25.offset| 0) (<= 0 |#t~string58.offset|) (<= 0 |#t~string57.offset|) (<= 0 |#t~string68.offset|)) [2019-09-20 16:33:18,269 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 16:33:18,270 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 16:33:18,271 INFO L168 Benchmark]: Toolchain (without parser) took 42992.72 ms. Allocated memory was 142.1 MB in the beginning and 513.8 MB in the end (delta: 371.7 MB). Free memory was 88.8 MB in the beginning and 298.6 MB in the end (delta: -209.8 MB). Peak memory consumption was 161.9 MB. Max. memory is 7.1 GB. [2019-09-20 16:33:18,272 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory was 108.1 MB in the beginning and 107.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 16:33:18,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.78 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 88.6 MB in the beginning and 166.0 MB in the end (delta: -77.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2019-09-20 16:33:18,274 INFO L168 Benchmark]: Boogie Preprocessor took 76.43 ms. Allocated memory is still 199.2 MB. Free memory was 166.0 MB in the beginning and 161.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-20 16:33:18,274 INFO L168 Benchmark]: RCFGBuilder took 1468.55 ms. Allocated memory was 199.2 MB in the beginning and 228.1 MB in the end (delta: 28.8 MB). Free memory was 161.8 MB in the beginning and 147.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2019-09-20 16:33:18,275 INFO L168 Benchmark]: Sifa took 40794.29 ms. Allocated memory was 228.1 MB in the beginning and 513.8 MB in the end (delta: 285.7 MB). Free memory was 147.5 MB in the beginning and 298.6 MB in the end (delta: -151.1 MB). Peak memory consumption was 134.6 MB. Max. memory is 7.1 GB. [2019-09-20 16:33:18,279 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory was 108.1 MB in the beginning and 107.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 649.78 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 88.6 MB in the beginning and 166.0 MB in the end (delta: -77.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.43 ms. Allocated memory is still 199.2 MB. Free memory was 166.0 MB in the beginning and 161.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1468.55 ms. Allocated memory was 199.2 MB in the beginning and 228.1 MB in the end (delta: 28.8 MB). Free memory was 161.8 MB in the beginning and 147.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * Sifa took 40794.29 ms. Allocated memory was 228.1 MB in the beginning and 513.8 MB in the end (delta: 285.7 MB). Free memory was 147.5 MB in the beginning and 298.6 MB in the end (delta: -151.1 MB). Peak memory consumption was 134.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 40753, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 174, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 117, TOOLS_POST_TIME[ms]: 24570, TOOLS_POST_CALL_APPLICATIONS: 49, TOOLS_POST_CALL_TIME[ms]: 108, TOOLS_POST_RETURN_APPLICATIONS: 42, TOOLS_POST_RETURN_TIME[ms]: 44, TOOLS_QUANTIFIERELIM_APPLICATIONS: 207, TOOLS_QUANTIFIERELIM_TIME[ms]: 24639, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 24499, FLUID_QUERY_TIME[ms]: 12, FLUID_QUERIES: 178, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 58, DOMAIN_JOIN_TIME[ms]: 15726, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 6, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME[ms]: 6, DOMAIN_ISBOTTOM_APPLICATIONS: 36, DOMAIN_ISBOTTOM_TIME[ms]: 148, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 12372, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 12371, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, CALL_SUMMARIZER_APPLICATIONS: 42, CALL_SUMMARIZER_CACHE_MISSES: 19, CALL_SUMMARIZER_OVERALL_TIME[ms]: 24973, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 24973, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 36, DAG_COMPRESSION_PROCESSED_NODES: 383, DAG_COMPRESSION_RETAINED_NODES: 176 - UnprovableResult [Line: 206]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 270#(and (<= |#t~string58.offset| 0) (<= 0 |#t~string27.offset|) (<= ~head~0.base 0) (<= 0 |#t~string19.offset|) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= 0 |#t~string70.offset|) (<= 0 |#t~string17.offset|) (<= |#t~string67.offset| 0) (<= |#t~string31.offset| 0) (<= ~systemActive~0 1) (<= ~head~0.offset 0) (<= 0 |#t~string67.offset|) (<= 0 |#t~string60.offset|) (<= |#t~string70.offset| 0) (<= |#t~string56.offset| 0) (<= 0 |#t~string59.offset|) (<= 0 |#t~string21.offset|) (<= |#t~string1.offset| 0) (<= |#t~string57.offset| 0) (<= 0 |#t~string69.offset|) (<= 0 |#t~string1.offset|) (<= 0 ~head~0.base) (<= |#NULL.offset| 0) (<= |#t~string7.offset| 0) (<= 0 ~methaneLevelCritical~0) (<= |#t~string9.offset| 0) (<= 0 |#t~string61.offset|) (<= |#t~string65.offset| 0) (<= |#t~string27.offset| 0) (<= 0 |#t~string65.offset|) (<= 0 |#t~string56.offset|) (<= |#t~string66.offset| 0) (<= 0 |#t~string7.offset|) (<= 0 |#t~string9.offset|) (<= |#t~string21.offset| 0) (<= |#t~string61.offset| 0) (<= |#t~string59.offset| 0) (<= 0 |#t~string23.offset|) (<= 0 |#NULL.offset|) (<= |#t~string69.offset| 0) (<= |#t~string60.offset| 0) (<= ~cleanupTimeShifts~0 4) (<= 0 |#t~string29.offset|) (<= 0 |#t~string5.offset|) (<= |#t~string3.offset| 0) (<= |#t~string5.offset| 0) (<= ~methaneLevelCritical~0 1) (<= |#NULL.base| 0) (<= 0 |#t~string66.offset|) (<= 1 ~systemActive~0) (<= 0 |#t~string31.offset|) (<= |#t~string23.offset| 0) (<= |#t~string17.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string29.offset| 0) (<= |#t~string19.offset| 0) (<= |#t~string68.offset| 0) (<= 0 |#t~string3.offset|) (<= 0 |#t~string25.offset|) (<= |#t~string25.offset| 0) (<= 0 |#t~string58.offset|) (<= 0 |#t~string57.offset|) (<= 0 |#t~string68.offset|)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...