Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.0008367/0.0008367, allocations: 80.45 kB / 19.15 MB, free: 0.7734 MB / 13.93 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.0009417/0.0009417, allocations: 162 kB / 22.43 MB, free: 2.141 MB / 18.57 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 0.8941/0.8941, allocations: 177.2 MB / 202.8 MB, free: 5.781 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Examples/PPD12/Structure.mo:531:21-531:686:writable] Warning: Lexer treating \\ as \\\\, since \\e is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Examples/PPD12/Structure.mo:531:21-531:694:writable] Warning: Lexer treating \\ as \\\\, since \\< is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Media/Refrigerants/R410A/package.order:0:0-0:0:readonly] Warning: Found duplicate names in package.order file: A, B, C. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Media/Refrigerants/R410A/package.mo:2:1-70:10:writable] Warning: C was referenced in the package.order file, but was not found in package.mo, C/package.mo or C.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/package.mo): time 0.7171/0.7171, allocations: 154.7 MB / 413.9 MB, free: 0.7422 MB / 378.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Utilities/Cryptographics/BaseClasses/sha.mo:2:1-19:8:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Utilities/File/sha2.mo:2:1-9:9:writable] Warning: External function annotation should occur on the external-clause, not on the function. " [Timeout remaining time 179] Using package IDEAS with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/package.mo) Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo) Using package Complex with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo) Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo) Running command: "" <> buildModelFMU(IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold,fileNamePrefix="IDEAS_IDEAS_Controls_OBC_CDL_Integers_Validation_GreaterEqualThreshold",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold,fileNamePrefix="IDEAS_IDEAS_Controls_OBC_CDL_Integers_Validation_GreaterEqualThreshold",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: IDEAS requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0009712/0.0009712, allocations: 73.66 kB / 0.6183 GB, free: 13.45 MB / 0.5886 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Utilities/Cryptographics/BaseClasses/sha.mo:2:1-19:8:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Utilities/File/sha2.mo:2:1-9:9:writable] Warning: External function annotation should occur on the external-clause, not on the function. Notification: Performance of FrontEnd - Absyn->SCode: time 0.4291/0.43, allocations: 102 MB / 0.7179 GB, free: 23.39 MB / 0.6355 GB Notification: Performance of NFInst.instantiate(IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold): time 0.00153/0.4316, allocations: 0.6818 MB / 0.7186 GB, free: 22.96 MB / 0.6355 GB Notification: Performance of NFInst.instExpressions: time 0.0008756/0.4324, allocations: 0.8593 MB / 0.7194 GB, free: 22.32 MB / 0.6355 GB Notification: Performance of NFInst.updateImplicitVariability: time 3.82e-05/0.4325, allocations: 0 / 0.7194 GB, free: 22.32 MB / 0.6355 GB Notification: Performance of NFTyping.typeComponents: time 2.669e-05/0.4325, allocations: 6.109 kB / 0.7194 GB, free: 22.32 MB / 0.6355 GB Notification: Performance of NFTyping.typeBindings: time 7.014e-05/0.4326, allocations: 3.938 kB / 0.7194 GB, free: 22.31 MB / 0.6355 GB Notification: Performance of NFTyping.typeClassSections: time 0.000152/0.4327, allocations: 27.2 kB / 0.7194 GB, free: 22.3 MB / 0.6355 GB Notification: Performance of NFFlatten.flatten: time 7.97e-05/0.4328, allocations: 48.91 kB / 0.7195 GB, free: 22.27 MB / 0.6355 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001077/0.4329, allocations: 15.58 kB / 0.7195 GB, free: 22.27 MB / 0.6355 GB Notification: Performance of NFEvalConstants.evaluate: time 8.412e-05/0.433, allocations: 21.73 kB / 0.7195 GB, free: 22.26 MB / 0.6355 GB Notification: Performance of NFSimplifyModel.simplify: time 5.623e-05/0.433, allocations: 32.17 kB / 0.7195 GB, free: 22.24 MB / 0.6355 GB Notification: Performance of NFPackage.collectConstants: time 1.999e-05/0.4331, allocations: 4.188 kB / 0.7195 GB, free: 22.24 MB / 0.6355 GB Notification: Performance of NFFlatten.collectFunctions: time 1.03e-05/0.4331, allocations: 8.375 kB / 0.7196 GB, free: 22.23 MB / 0.6355 GB Notification: Performance of NFScalarize.scalarize: time 1.935e-05/0.4331, allocations: 8.547 kB / 0.7196 GB, free: 22.23 MB / 0.6355 GB Notification: Performance of NFVerifyModel.verify: time 2.497e-05/0.4331, allocations: 13.75 kB / 0.7196 GB, free: 22.22 MB / 0.6355 GB Notification: Performance of NFConvertDAE.convert: time 0.0001071/0.4332, allocations: 60.69 kB / 0.7196 GB, free: 22.2 MB / 0.6355 GB Notification: Performance of FrontEnd - DAE generated: time 4.359e-06/0.4332, allocations: 0 / 0.7196 GB, free: 22.2 MB / 0.6355 GB Notification: Performance of FrontEnd: time 2.285e-06/0.4332, allocations: 0.75 kB / 0.7196 GB, free: 22.2 MB / 0.6355 GB Notification: Performance of Transformations before backend: time 5.661e-06/0.4332, allocations: 0 / 0.7196 GB, free: 22.2 MB / 0.6355 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 7 * Number of variables: 7 Notification: Performance of Generate backend data structure: time 0.0003511/0.4336, allocations: 281 kB / 0.7199 GB, free: 21.92 MB / 0.6355 GB Notification: Performance of prepare preOptimizeDAE: time 3.942e-05/0.4336, allocations: 9.531 kB / 0.7199 GB, free: 21.92 MB / 0.6355 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 2.562e-05/0.4337, allocations: 36.59 kB / 0.7199 GB, free: 21.88 MB / 0.6355 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 2.422e-05/0.4337, allocations: 11.3 kB / 0.72 GB, free: 21.87 MB / 0.6355 GB Notification: Performance of preOpt evaluateParameters (simulation): time 7.528e-05/0.4338, allocations: 111.8 kB / 0.7201 GB, free: 21.74 MB / 0.6355 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.393e-05/0.4338, allocations: 2.812 kB / 0.7201 GB, free: 21.74 MB / 0.6355 GB Notification: Performance of preOpt expandDerOperator (simulation): time 1.202e-05/0.4338, allocations: 6.344 kB / 0.7201 GB, free: 21.74 MB / 0.6355 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001456/0.4339, allocations: 73.42 kB / 0.7201 GB, free: 21.69 MB / 0.6355 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.474e-06/0.4339, allocations: 0 / 0.7201 GB, free: 21.69 MB / 0.6355 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.486e-06/0.4339, allocations: 0 / 0.7201 GB, free: 21.69 MB / 0.6355 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.419e-06/0.4339, allocations: 1.125 kB / 0.7201 GB, free: 21.69 MB / 0.6355 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0001162/0.4341, allocations: 51.7 kB / 0.7202 GB, free: 21.68 MB / 0.6355 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00031/0.4344, allocations: 257 kB / 0.7204 GB, free: 21.42 MB / 0.6355 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0001277/0.4345, allocations: 61.52 kB / 0.7205 GB, free: 21.39 MB / 0.6355 GB Notification: Performance of preOpt resolveLoops (simulation): time 5.807e-05/0.4346, allocations: 31.7 kB / 0.7205 GB, free: 21.37 MB / 0.6355 GB Notification: Performance of preOpt evalFunc (simulation): time 1.566e-05/0.4346, allocations: 0 / 0.7205 GB, free: 21.37 MB / 0.6355 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.501e-05/0.4346, allocations: 32.88 kB / 0.7206 GB, free: 21.33 MB / 0.6355 GB Notification: Performance of pre-optimization done (n=4): time 1.012e-06/0.4346, allocations: 0 / 0.7206 GB, free: 21.33 MB / 0.6355 GB Notification: Performance of matching and sorting (n=4): time 0.0002552/0.4348, allocations: 114.8 kB / 0.7207 GB, free: 21.28 MB / 0.6355 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.084e-05/0.4349, allocations: 55.34 kB / 0.7207 GB, free: 21.21 MB / 0.6355 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 5.728e-05/0.4349, allocations: 107 kB / 0.7208 GB, free: 21.11 MB / 0.6355 GB Notification: Performance of collectPreVariables (initialization): time 6.762e-06/0.4349, allocations: 26.92 kB / 0.7208 GB, free: 21.08 MB / 0.6355 GB Notification: Performance of collectInitialEqns (initialization): time 2.815e-05/0.435, allocations: 91.92 kB / 0.7209 GB, free: 20.99 MB / 0.6355 GB Notification: Performance of collectInitialBindings (initialization): time 1.567e-05/0.435, allocations: 9.344 kB / 0.7209 GB, free: 20.98 MB / 0.6355 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.677e-05/0.435, allocations: 24.02 kB / 0.721 GB, free: 20.96 MB / 0.6355 GB Notification: Performance of setup shared object (initialization): time 3.363e-05/0.435, allocations: 318.9 kB / 0.7213 GB, free: 20.64 MB / 0.6355 GB Notification: Performance of preBalanceInitialSystem (initialization): time 5.991e-05/0.4351, allocations: 21.86 kB / 0.7213 GB, free: 20.64 MB / 0.6355 GB Notification: Performance of partitionIndependentBlocks (initialization): time 5.038e-05/0.4351, allocations: 31.62 kB / 0.7213 GB, free: 20.62 MB / 0.6355 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0001033/0.4352, allocations: 49.16 kB / 0.7214 GB, free: 20.61 MB / 0.6355 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.185e-06/0.4353, allocations: 0.5625 kB / 0.7214 GB, free: 20.61 MB / 0.6355 GB Notification: Performance of matching and sorting (n=4) (initialization): time 0.0001352/0.4354, allocations: 87.41 kB / 0.7215 GB, free: 20.56 MB / 0.6355 GB Notification: Performance of prepare postOptimizeDAE: time 1.352e-05/0.4354, allocations: 6.078 kB / 0.7215 GB, free: 20.56 MB / 0.6355 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.729e-06/0.4354, allocations: 0 / 0.7215 GB, free: 20.56 MB / 0.6355 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.168e-05/0.4354, allocations: 5.125 kB / 0.7215 GB, free: 20.56 MB / 0.6355 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 8.114e-05/0.4355, allocations: 12.36 kB / 0.7215 GB, free: 20.56 MB / 0.6355 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.22e-06/0.4355, allocations: 0 / 0.7215 GB, free: 20.56 MB / 0.6355 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 3.568e-05/0.4355, allocations: 16.08 kB / 0.7215 GB, free: 20.55 MB / 0.6355 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.34e-06/0.4355, allocations: 1.062 kB / 0.7215 GB, free: 20.55 MB / 0.6355 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 2 (reaToInt.y,intGreEquThr.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (4): * Single equations (assignments): 4 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 4.65e-05/0.4356, allocations: 110.6 kB / 0.7216 GB, free: 20.44 MB / 0.6355 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 1.334e-05/0.4356, allocations: 2.438 kB / 0.7216 GB, free: 20.44 MB / 0.6355 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 1.905e-05/0.4356, allocations: 10.06 kB / 0.7216 GB, free: 20.43 MB / 0.6355 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.594e-06/0.4356, allocations: 1.484 kB / 0.7216 GB, free: 20.43 MB / 0.6355 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.778e-06/0.4356, allocations: 8.609 kB / 0.7216 GB, free: 20.42 MB / 0.6355 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.996e-06/0.4356, allocations: 3.938 kB / 0.7216 GB, free: 20.41 MB / 0.6355 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 9.697e-05/0.4357, allocations: 141.8 kB / 0.7218 GB, free: 20.25 MB / 0.6355 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.052e-06/0.4357, allocations: 0 / 0.7218 GB, free: 20.25 MB / 0.6355 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 4.146e-05/0.4358, allocations: 20.11 kB / 0.7218 GB, free: 20.24 MB / 0.6355 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.444e-06/0.4358, allocations: 1 kB / 0.7218 GB, free: 20.24 MB / 0.6355 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.485e-06/0.4358, allocations: 0.8438 kB / 0.7218 GB, free: 20.24 MB / 0.6355 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.573e-06/0.4358, allocations: 1.031 kB / 0.7218 GB, free: 20.24 MB / 0.6355 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.734e-06/0.4358, allocations: 320 / 0.7218 GB, free: 20.24 MB / 0.6355 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0001585/0.4359, allocations: 185 kB / 0.722 GB, free: 20.09 MB / 0.6355 GB Notification: Performance of postOpt removeConstants (simulation): time 1.105e-05/0.436, allocations: 2.984 kB / 0.722 GB, free: 20.09 MB / 0.6355 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.092e-05/0.436, allocations: 4.609 kB / 0.722 GB, free: 20.09 MB / 0.6355 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 4.638e-05/0.436, allocations: 7.016 kB / 0.722 GB, free: 20.09 MB / 0.6355 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.547e-05/0.4361, allocations: 12.98 kB / 0.722 GB, free: 20.09 MB / 0.6355 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.04e-06/0.4361, allocations: 5.734 kB / 0.722 GB, free: 20.08 MB / 0.6355 GB Notification: Performance of sorting global known variables: time 2.292e-05/0.4361, allocations: 87.86 kB / 0.7221 GB, free: 20 MB / 0.6355 GB Notification: Performance of sort global known variables: time 5e-08/0.4361, allocations: 0 / 0.7221 GB, free: 20 MB / 0.6355 GB Notification: Performance of remove unused functions: time 0.0001469/0.4362, allocations: 14.14 kB / 0.7221 GB, free: 20 MB / 0.6355 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 2 (intGreEquThr.y,reaToInt.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (4): * Single equations (assignments): 4 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.00046/0.4367, allocations: 0.7203 MB / 0.7228 GB, free: 19.32 MB / 0.6355 GB Notification: Performance of simCode: created initialization part: time 0.0002491/0.437, allocations: 55.25 kB / 0.7228 GB, free: 19.3 MB / 0.6355 GB Notification: Performance of simCode: created event and clocks part: time 1.793e-06/0.437, allocations: 0 / 0.7228 GB, free: 19.3 MB / 0.6355 GB Notification: Performance of simCode: created simulation system equations: time 6.936e-05/0.437, allocations: 34.34 kB / 0.7229 GB, free: 19.3 MB / 0.6355 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002429/0.4373, allocations: 6.969 kB / 0.7229 GB, free: 19.29 MB / 0.6355 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.000942/0.4382, allocations: 1.319 MB / 0.7242 GB, free: 18.09 MB / 0.6355 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 4.237e-05/0.4383, allocations: 64.91 kB / 0.7242 GB, free: 18.02 MB / 0.6355 GB Notification: Performance of simCode: alias equations: time 3.648e-05/0.4383, allocations: 8.938 kB / 0.7242 GB, free: 18.01 MB / 0.6355 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 4.869e-05/0.4383, allocations: 23.44 kB / 0.7243 GB, free: 18 MB / 0.6355 GB Notification: Performance of SimCode: time 8.31e-07/0.4383, allocations: 0 / 0.7243 GB, free: 18 MB / 0.6355 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.01583/0.4542, allocations: 2.547 MB / 0.7267 GB, free: 17.08 MB / 0.6355 GB Notification: Performance of buildModelFMU: Generate platform static: time 6.57/7.024, allocations: 13.36 kB / 0.7268 GB, free: 17.07 MB / 0.6355 GB " [Timeout remaining time 653] (rm -f IDEAS_IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold.pipe ; mkfifo IDEAS_IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold.pipe ; head -c 1048576 < IDEAS_IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold.pipe >> ../files/IDEAS_IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold.sim & python3 -m fmpy simulate --output-file IDEAS_IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 IDEAS_IDEAS_Controls_OBC_CDL_Integers_Validation_GreaterEqualThreshold.fmu > IDEAS_IDEAS.Controls.OBC.CDL.Integers.Validation.GreaterEqualThreshold.pipe 2>&1) [Timeout 52.5] [Calling sys.exit(0), Time elapsed: 9.787909122998826] Failed to read output from testmodel.py, exit status != 0: 7.103386068949476 7.112827896 6.677946642 Calling exit ...