Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.FMI.Conversion.Validation.InletToAirDryAirCO2.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 0.001397/0.001397, allocations: 97.31 kB / 19.73 MB, free: 2.117 MB / 14.72 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 0.001671/0.001671, allocations: 214.4 kB / 23.03 MB, free: 4.922 MB / 14.72 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 1.488/1.488, allocations: 230.6 MB / 256.8 MB, free: 7.805 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo): time 0.9693/0.9693, allocations: 145 MB / 458.2 MB, free: 15.3 MB / 366.1 MB " [Timeout remaining time 179] Using package BuildSysPro with version 3.6.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/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(BuildSysPro.IBPSA.Fluid.FMI.Conversion.Validation.InletToAirDryAirCO2,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Fluid_FMI_Conversion_Validation_InletToAirDryAirCO2",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildSysPro.IBPSA.Fluid.FMI.Conversion.Validation.InletToAirDryAirCO2,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Fluid_FMI_Conversion_Validation_InletToAirDryAirCO2",fmuType="cs",version="2.0",platforms={"static"}) [Timeout 660] "Notification: BuildSysPro 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 0.001997/0.001997, allocations: 66.38 kB / 0.6339 GB, free: 6.645 MB / 462.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1918/0.1938, allocations: 87.89 MB / 0.7197 GB, free: 14.78 MB / 0.545 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.FMI.Conversion.Validation.InletToAirDryAirCO2): time 0.5688/0.7626, allocations: 130.7 MB / 0.8473 GB, free: 8.172 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.005685/0.7683, allocations: 4.355 MB / 0.8516 GB, free: 3.805 MB / 0.6231 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003842/0.7687, allocations: 11.94 kB / 0.8516 GB, free: 3.793 MB / 0.6231 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/IBPSA/Fluid/FMI/Conversion/InletToAir.mo:80:3-83:60:writable] Warning: Connector bacPro_internal is not balanced: The number of potential variables (3) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/IBPSA/Fluid/FMI/Source_T.mo:50:3-51:70:writable] Warning: Connector X_w_in_internal is not balanced: The number of potential variables (1) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/IBPSA/Fluid/FMI/Conversion/InletToAir.mo:80:3-83:60:writable] Warning: Connector bacPro_internal is not balanced: The number of potential variables (3) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/IBPSA/Fluid/FMI/Source_T.mo:50:3-51:70:writable] Warning: Connector X_w_in_internal is not balanced: The number of potential variables (1) is not equal to the number of flow variables (0). Notification: Performance of NFTyping.typeComponents: time 0.0006408/0.7694, allocations: 170.8 kB / 0.8518 GB, free: 3.625 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.0003848/0.7697, allocations: 83.45 kB / 0.8518 GB, free: 3.543 MB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.0001751/0.7699, allocations: 67.91 kB / 0.8519 GB, free: 3.477 MB / 0.6231 GB Notification: Performance of NFFlatten.flatten: time 0.0004149/0.7703, allocations: 298.8 kB / 0.8522 GB, free: 3.184 MB / 0.6231 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0002702/0.7706, allocations: 101.3 kB / 0.8523 GB, free: 3.086 MB / 0.6231 GB Notification: Performance of NFEvalConstants.evaluate: time 0.000215/0.7708, allocations: 119.5 kB / 0.8524 GB, free: 2.969 MB / 0.6231 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002343/0.771, allocations: 151.4 kB / 0.8526 GB, free: 2.82 MB / 0.6231 GB Notification: Performance of NFPackage.collectConstants: time 3.234e-05/0.7711, allocations: 20 kB / 0.8526 GB, free: 2.801 MB / 0.6231 GB Notification: Performance of NFFlatten.collectFunctions: time 3.426e-05/0.7711, allocations: 16 kB / 0.8526 GB, free: 2.785 MB / 0.6231 GB Notification: Performance of NFScalarize.scalarize: time 0.000116/0.7712, allocations: 71.75 kB / 0.8527 GB, free: 2.715 MB / 0.6231 GB Notification: Performance of NFVerifyModel.verify: time 0.0001061/0.7713, allocations: 79.61 kB / 0.8527 GB, free: 2.637 MB / 0.6231 GB Notification: Performance of NFConvertDAE.convert: time 0.000355/0.7717, allocations: 255.6 kB / 0.853 GB, free: 2.391 MB / 0.6231 GB Notification: Performance of FrontEnd - DAE generated: time 4.939e-06/0.7717, allocations: 3.938 kB / 0.853 GB, free: 2.387 MB / 0.6231 GB Notification: Performance of FrontEnd: time 2.024e-06/0.7717, allocations: 0 / 0.853 GB, free: 2.387 MB / 0.6231 GB Notification: Performance of Transformations before backend: time 7.534e-06/0.7717, allocations: 0 / 0.853 GB, free: 2.387 MB / 0.6231 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 54 * Number of variables: 54 Notification: Performance of Generate backend data structure: time 0.0005692/0.7723, allocations: 417.8 kB / 0.8534 GB, free: 1.949 MB / 0.6231 GB Notification: Performance of prepare preOptimizeDAE: time 5.278e-05/0.7723, allocations: 12.03 kB / 0.8534 GB, free: 1.938 MB / 0.6231 GB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 2.307e-05/0.7724, allocations: 4.625 kB / 0.8534 GB, free: 1.934 MB / 0.6231 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 6.127e-05/0.7724, allocations: 66.66 kB / 0.8535 GB, free: 1.859 MB / 0.6231 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 5.202e-05/0.7725, allocations: 28.75 kB / 0.8535 GB, free: 1.832 MB / 0.6231 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004174/0.7729, allocations: 201.2 kB / 0.8537 GB, free: 1.613 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.317e-05/0.7729, allocations: 12.81 kB / 0.8537 GB, free: 1.602 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.234e-05/0.7729, allocations: 24.38 kB / 0.8537 GB, free: 1.578 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004734/0.7734, allocations: 312.8 kB / 0.854 GB, free: 1.215 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.366e-05/0.7734, allocations: 0 / 0.854 GB, free: 1.215 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.431e-05/0.7735, allocations: 12 kB / 0.854 GB, free: 1.203 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.598e-06/0.7735, allocations: 4 kB / 0.854 GB, free: 1.199 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.000204/0.7737, allocations: 127.7 kB / 0.8541 GB, free: 1.074 MB / 0.6231 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001617/0.7753, allocations: 1.9 MB / 0.856 GB, free: 15.07 MB / 0.6387 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0001366/0.7754, allocations: 165.1 kB / 0.8562 GB, free: 14.9 MB / 0.6387 GB Notification: Performance of preOpt resolveLoops (simulation): time 4.45e-05/0.7755, allocations: 84.08 kB / 0.8562 GB, free: 14.81 MB / 0.6387 GB Notification: Performance of preOpt evalFunc (simulation): time 7.254e-05/0.7755, allocations: 75.28 kB / 0.8563 GB, free: 14.74 MB / 0.6387 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.674e-05/0.7756, allocations: 117.8 kB / 0.8564 GB, free: 14.61 MB / 0.6387 GB Notification: Performance of pre-optimization done (n=0): time 1.473e-06/0.7756, allocations: 3.938 kB / 0.8564 GB, free: 14.61 MB / 0.6387 GB Notification: Performance of matching and sorting (n=0): time 0.0001158/0.7757, allocations: 57.48 kB / 0.8565 GB, free: 14.55 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.875e-05/0.7758, allocations: 126.7 kB / 0.8566 GB, free: 14.41 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004063/0.7762, allocations: 332.5 kB / 0.8569 GB, free: 14.07 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 2.748e-05/0.7763, allocations: 25.7 kB / 0.8569 GB, free: 14.04 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001348/0.7764, allocations: 167.8 kB / 0.8571 GB, free: 13.87 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 5.911e-06/0.7764, allocations: 3.984 kB / 0.8571 GB, free: 13.87 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 4.211e-05/0.7764, allocations: 21.72 kB / 0.8571 GB, free: 13.84 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0001735/0.7766, allocations: 330.8 kB / 0.8574 GB, free: 13.51 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 2.668e-05/0.7766, allocations: 12 kB / 0.8575 GB, free: 13.5 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 6.993e-05/0.7767, allocations: 62.8 kB / 0.8575 GB, free: 13.41 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 9.644e-05/0.7768, allocations: 66.81 kB / 0.8576 GB, free: 13.32 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.525e-06/0.7768, allocations: 0 / 0.8576 GB, free: 13.32 MB / 0.6387 GB Notification: Performance of matching and sorting (n=8) (initialization): time 0.0001966/0.777, allocations: 113.3 kB / 0.8577 GB, free: 13.2 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 1.578e-05/0.777, allocations: 4 kB / 0.8577 GB, free: 13.2 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.012e-05/0.777, allocations: 7.938 kB / 0.8577 GB, free: 13.19 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.542e-05/0.777, allocations: 0 / 0.8577 GB, free: 13.19 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 7.907e-05/0.7771, allocations: 12 kB / 0.8577 GB, free: 13.18 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.19e-05/0.7771, allocations: 11.88 kB / 0.8577 GB, free: 13.17 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 8.296e-05/0.7772, allocations: 23.78 kB / 0.8577 GB, free: 13.14 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.087e-05/0.7772, allocations: 8.234 kB / 0.8578 GB, free: 13.14 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (8): * Single equations (assignments): 8 * 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 0.0001554/0.7774, allocations: 209.1 kB / 0.858 GB, free: 12.92 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001023/0.7775, allocations: 132.8 kB / 0.8581 GB, free: 12.79 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 8.39e-05/0.7776, allocations: 133.9 kB / 0.8582 GB, free: 12.65 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.996e-05/0.7777, allocations: 180.3 kB / 0.8584 GB, free: 12.46 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.87e-05/0.7777, allocations: 180.2 kB / 0.8586 GB, free: 12.28 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.561e-05/0.7778, allocations: 176.9 kB / 0.8587 GB, free: 12.1 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0003601/0.7782, allocations: 444.2 kB / 0.8591 GB, free: 11.62 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.8e-05/0.7782, allocations: 105 kB / 0.8592 GB, free: 11.51 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 5.562e-05/0.7783, allocations: 101 kB / 0.8593 GB, free: 11.4 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.157e-05/0.7784, allocations: 185.1 kB / 0.8595 GB, free: 11.21 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.746e-05/0.7785, allocations: 188.2 kB / 0.8597 GB, free: 11.02 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.695e-05/0.7786, allocations: 188.1 kB / 0.8599 GB, free: 10.83 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.69e-05/0.7786, allocations: 180.3 kB / 0.86 GB, free: 10.65 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0001935/0.7788, allocations: 327.6 kB / 0.8604 GB, free: 10.3 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001148/0.779, allocations: 128.8 kB / 0.8605 GB, free: 10.17 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001156/0.7791, allocations: 188.1 kB / 0.8607 GB, free: 9.98 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001261/0.7792, allocations: 106.2 kB / 0.8608 GB, free: 9.871 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001187/0.7793, allocations: 180.3 kB / 0.8609 GB, free: 9.688 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.834e-05/0.7794, allocations: 104.9 kB / 0.861 GB, free: 9.578 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.0002709/0.7796, allocations: 239 kB / 0.8613 GB, free: 9.348 MB / 0.6387 GB Notification: Performance of sort global known variables: time 1.1e-07/0.7796, allocations: 0 / 0.8613 GB, free: 9.348 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.0002931/0.7799, allocations: 28 kB / 0.8613 GB, free: 9.32 MB / 0.6387 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (0): * Single equations (assignments): 0 * 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 0.0005486/0.7805, allocations: 0.8291 MB / 0.8621 GB, free: 8.465 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.0001062/0.7806, allocations: 27.88 kB / 0.8621 GB, free: 8.438 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 6.592e-06/0.7806, allocations: 0 / 0.8621 GB, free: 8.438 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 1.673e-06/0.7806, allocations: 0 / 0.8621 GB, free: 8.438 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0008246/0.7814, allocations: 0.534 MB / 0.8626 GB, free: 7.906 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003011/0.7844, allocations: 2.506 MB / 0.8651 GB, free: 5.281 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001498/0.7846, allocations: 133.6 kB / 0.8652 GB, free: 5.129 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.0001103/0.7847, allocations: 30.28 kB / 0.8653 GB, free: 5.098 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001015/0.7848, allocations: 59.42 kB / 0.8653 GB, free: 5.039 MB / 0.6387 GB Notification: Performance of SimCode: time 8.32e-07/0.7848, allocations: 0 / 0.8653 GB, free: 5.039 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.0283/0.8131, allocations: 5.261 MB / 0.8704 GB, free: 40 kB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 11.73/12.54, allocations: 9.641 kB / 0.8705 GB, free: 36 kB / 0.6387 GB " [Timeout remaining time 647] (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.FMI.Conversion.Validation.InletToAirDryAirCO2.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.FMI.Conversion.Validation.InletToAirDryAirCO2.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.FMI.Conversion.Validation.InletToAirDryAirCO2.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.FMI.Conversion.Validation.InletToAirDryAirCO2.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_BuildSysPro_BuildSysPro_IBPSA_Fluid_FMI_Conversion_Validation_InletToAirDryAirCO2_fmu --startTime=0 --stopTime=1 --stepSize=0.0004 --timeout=50 --tolerance=1e-06 BuildSysPro_BuildSysPro_IBPSA_Fluid_FMI_Conversion_Validation_InletToAirDryAirCO2.fmu > BuildSysPro_BuildSysPro.IBPSA.Fluid.FMI.Conversion.Validation.InletToAirDryAirCO2.pipe 2>&1) [Timeout 52.5] [Calling sys.exit(0), Time elapsed: 16.393218134064227] Failed to read output from testmodel.py, exit status != 0: 12.715175895020366 12.741407474 11.966020534 Calling exit ...