Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X.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 0.001733/0.001733, allocations: 117.9 kB / 19.7 MB, free: 2.188 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 0.001963/0.001963, allocations: 218.6 kB / 23 MB, free: 5.004 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 1.471/1.471, allocations: 230.6 MB / 256.8 MB, free: 8.004 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo): time 1.003/1.003, allocations: 150 MB / 463.1 MB, free: 10.51 MB / 366.1 MB " [Timeout remaining time 179] Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/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: translateModel(IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X") translateModel(IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X") [Timeout 660] "Notification: IBPSA 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 0.002127/0.002127, allocations: 65.92 kB / 0.6417 GB, free: 9.949 MB / 478.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2083/0.2104, allocations: 89.18 MB / 0.7288 GB, free: 0.832 MB / 0.545 GB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X): time 0.6253/0.8357, allocations: 184.2 MB / 0.9086 GB, free: 14.9 MB / 0.6856 GB Notification: Performance of NFInst.instExpressions: time 0.007206/0.8429, allocations: 3.834 MB / 0.9124 GB, free: 11.05 MB / 0.6856 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000687/0.8436, allocations: 39.62 kB / 0.9124 GB, free: 11.02 MB / 0.6856 GB Notification: Performance of NFTyping.typeComponents: time 0.001201/0.8448, allocations: 449.5 kB / 0.9128 GB, free: 10.57 MB / 0.6856 GB Notification: Performance of NFTyping.typeBindings: time 0.003385/0.8482, allocations: 1.334 MB / 0.9141 GB, free: 9.234 MB / 0.6856 GB Notification: Performance of NFTyping.typeClassSections: time 0.001991/0.8502, allocations: 0.7404 MB / 0.9149 GB, free: 8.496 MB / 0.6856 GB Notification: Performance of NFFlatten.flatten: time 0.002029/0.8522, allocations: 1.368 MB / 0.9162 GB, free: 7.125 MB / 0.6856 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006662/0.8529, allocations: 389.9 kB / 0.9166 GB, free: 6.738 MB / 0.6856 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003113/0.856, allocations: 1.185 MB / 0.9177 GB, free: 5.555 MB / 0.6856 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0007904/0.8568, allocations: 482.1 kB / 0.9182 GB, free: 5.082 MB / 0.6856 GB Notification: Performance of NFPackage.collectConstants: time 7.677e-05/0.8568, allocations: 44 kB / 0.9182 GB, free: 5.039 MB / 0.6856 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002319/0.8592, allocations: 1.247 MB / 0.9195 GB, free: 3.789 MB / 0.6856 GB Notification: Performance of NFScalarize.scalarize: time 0.0002425/0.8594, allocations: 211.2 kB / 0.9197 GB, free: 3.582 MB / 0.6856 GB Notification: Performance of NFVerifyModel.verify: time 0.0003904/0.8598, allocations: 330.2 kB / 0.92 GB, free: 3.258 MB / 0.6856 GB Notification: Performance of NFConvertDAE.convert: time 0.00204/0.8618, allocations: 1.202 MB / 0.9211 GB, free: 2.055 MB / 0.6856 GB Notification: Performance of FrontEnd - DAE generated: time 5.51e-06/0.8618, allocations: 0 / 0.9211 GB, free: 2.055 MB / 0.6856 GB Notification: Performance of FrontEnd: time 1.723e-06/0.8618, allocations: 0 / 0.9211 GB, free: 2.055 MB / 0.6856 GB Notification: Performance of Transformations before backend: time 1.045e-05/0.8618, allocations: 0 / 0.9211 GB, free: 2.055 MB / 0.6856 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 97 * Number of variables: 97 Notification: Performance of Generate backend data structure: time 0.002091/0.8639, allocations: 1.01 MB / 0.9221 GB, free: 1.012 MB / 0.6856 GB Notification: Performance of prepare preOptimizeDAE: time 3.589e-05/0.864, allocations: 8.031 kB / 0.9221 GB, free: 1.004 MB / 0.6856 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01949/0.8835, allocations: 2.853 MB / 0.9249 GB, free: 14.15 MB / 0.7012 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001278/0.8847, allocations: 0.5679 MB / 0.9255 GB, free: 13.55 MB / 0.7012 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.759e-05/0.8848, allocations: 29 kB / 0.9255 GB, free: 13.53 MB / 0.7012 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001039/0.8849, allocations: 40 kB / 0.9255 GB, free: 13.49 MB / 0.7012 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.007558/0.8924, allocations: 1.701 MB / 0.9272 GB, free: 11.76 MB / 0.7012 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.455e-05/0.8925, allocations: 4 kB / 0.9272 GB, free: 11.76 MB / 0.7012 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.883e-05/0.8925, allocations: 12 kB / 0.9272 GB, free: 11.75 MB / 0.7012 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.509e-05/0.8926, allocations: 20.98 kB / 0.9272 GB, free: 11.73 MB / 0.7012 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01368/0.9062, allocations: 2.72 MB / 0.9299 GB, free: 9.004 MB / 0.7012 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01246/0.9187, allocations: 4.168 MB / 0.934 GB, free: 4.605 MB / 0.7012 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01868/0.9374, allocations: 3.501 MB / 0.9374 GB, free: 1.098 MB / 0.7012 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006391/0.9438, allocations: 1.266 MB / 0.9386 GB, free: 15.83 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005268/0.9443, allocations: 83.86 kB / 0.9387 GB, free: 15.75 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.006725/0.951, allocations: 1.363 MB / 0.94 GB, free: 14.36 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=26): time 2.915e-06/0.951, allocations: 0 / 0.94 GB, free: 14.36 MB / 0.7169 GB Notification: Performance of matching and sorting (n=26): time 0.01975/0.9708, allocations: 3.699 MB / 0.9436 GB, free: 10.66 MB / 0.7169 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.584e-05/0.9708, allocations: 77.11 kB / 0.9437 GB, free: 10.56 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001081/0.9719, allocations: 0.6681 MB / 0.9444 GB, free: 9.883 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 9.401e-05/0.972, allocations: 33.7 kB / 0.9444 GB, free: 9.844 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002905/0.9723, allocations: 324.2 kB / 0.9447 GB, free: 9.523 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001259/0.9724, allocations: 91.25 kB / 0.9448 GB, free: 9.434 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002262/0.9727, allocations: 89.61 kB / 0.9449 GB, free: 9.34 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 0.0001932/0.9729, allocations: 382.7 kB / 0.9452 GB, free: 8.957 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006532/0.9794, allocations: 1.269 MB / 0.9465 GB, free: 7.684 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007022/0.9864, allocations: 1.394 MB / 0.9479 GB, free: 6.227 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01239/0.9988, allocations: 2.349 MB / 0.9501 GB, free: 3.82 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.862e-05/0.9988, allocations: 4 kB / 0.9501 GB, free: 3.816 MB / 0.7169 GB Notification: Performance of matching and sorting (n=43) (initialization): time 0.01343/1.012, allocations: 2.602 MB / 0.9527 GB, free: 1.207 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 4.595e-05/1.012, allocations: 5.875 kB / 0.9527 GB, free: 1.203 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.207e-05/1.012, allocations: 4 kB / 0.9527 GB, free: 1.199 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.067e-05/1.012, allocations: 8 kB / 0.9527 GB, free: 1.191 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003847/1.016, allocations: 0.5892 MB / 0.9533 GB, free: 0.6016 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.041e-05/1.016, allocations: 14.75 kB / 0.9533 GB, free: 0.5898 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00398/1.02, allocations: 0.5655 MB / 0.9538 GB, free: 24 kB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001106/1.02, allocations: 28.02 kB / 0.9539 GB, free: 15.99 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006775/1.027, allocations: 1.413 MB / 0.9553 GB, free: 14.58 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006676/1.034, allocations: 1.403 MB / 0.9566 GB, free: 13.11 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.01183/1.046, allocations: 2.354 MB / 0.9589 GB, free: 10.7 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 8.255e-06/1.046, allocations: 0 / 0.9589 GB, free: 10.7 MB / 0.7325 GB Notification: Performance of matching and sorting (n=43) (initialization_lambda0): time 0.01295/1.059, allocations: 2.595 MB / 0.9615 GB, free: 8.102 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 1.966e-05/1.059, allocations: 8 kB / 0.9615 GB, free: 8.094 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.187e-05/1.059, allocations: 4 kB / 0.9615 GB, free: 8.09 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.006e-05/1.059, allocations: 7.938 kB / 0.9615 GB, free: 8.082 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003738/1.062, allocations: 0.5892 MB / 0.9621 GB, free: 7.492 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.526e-05/1.062, allocations: 11.94 kB / 0.9621 GB, free: 7.48 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003982/1.066, allocations: 0.5586 MB / 0.9626 GB, free: 6.922 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.251e-05/1.066, allocations: 23.98 kB / 0.9626 GB, free: 6.898 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * Number of states: 0 () * Number of discrete variables: 5 ($PRE.XSet.nextTimeEvent,$whenCondition1,XSet.nextTimeEventScaled,$PRE.XSet.nextTimeEventScaled,XSet.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (43): * Single equations (assignments): 43 * 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 0.0002807/1.067, allocations: 205.1 kB / 0.9628 GB, free: 6.691 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001516/1.067, allocations: 63.58 kB / 0.9629 GB, free: 6.629 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01314/1.08, allocations: 2.513 MB / 0.9653 GB, free: 4.102 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.385e-05/1.08, allocations: 7.984 kB / 0.9654 GB, free: 4.094 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.17e-05/1.08, allocations: 6.25 kB / 0.9654 GB, free: 4.09 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.314e-06/1.08, allocations: 0 / 0.9654 GB, free: 4.09 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01461/1.095, allocations: 3.595 MB / 0.9689 GB, free: 416 kB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.008e-05/1.095, allocations: 7.938 kB / 0.9689 GB, free: 408 kB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003534/1.098, allocations: 0.5387 MB / 0.9694 GB, free: 15.86 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.355e-05/1.098, allocations: 7.984 kB / 0.9694 GB, free: 15.85 MB / 0.7481 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.381e-05/1.098, allocations: 15.98 kB / 0.9694 GB, free: 15.84 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 6.943e-06/1.098, allocations: 8 kB / 0.9694 GB, free: 15.83 MB / 0.7481 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.025e-06/1.098, allocations: 3.938 kB / 0.9694 GB, free: 15.82 MB / 0.7481 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01276/1.111, allocations: 2.606 MB / 0.972 GB, free: 13.17 MB / 0.7481 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004988/1.112, allocations: 143.4 kB / 0.9721 GB, free: 13.03 MB / 0.7481 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001473/1.112, allocations: 15.98 kB / 0.9721 GB, free: 13.02 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003674/1.115, allocations: 0.4994 MB / 0.9726 GB, free: 12.52 MB / 0.7481 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.295e-05/1.115, allocations: 31.91 kB / 0.9726 GB, free: 12.48 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.745e-05/1.115, allocations: 15.98 kB / 0.9727 GB, free: 12.47 MB / 0.7481 GB Notification: Performance of sorting global known variables: time 0.0007872/1.116, allocations: 483 kB / 0.9731 GB, free: 12 MB / 0.7481 GB Notification: Performance of sort global known variables: time 9e-08/1.116, allocations: 0 / 0.9731 GB, free: 12 MB / 0.7481 GB Notification: Performance of remove unused functions: time 0.001164/1.117, allocations: 319.6 kB / 0.9734 GB, free: 11.69 MB / 0.7481 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of discrete states: 2 (XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (25): * Single equations (assignments): 23 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 0.001816/1.119, allocations: 483.5 kB / 0.9739 GB, free: 11.41 MB / 0.7481 GB Notification: Performance of simCode: created initialization part: time 0.02005/1.139, allocations: 3.888 MB / 0.9777 GB, free: 7.516 MB / 0.7481 GB Notification: Performance of simCode: created event and clocks part: time 6.182e-06/1.139, allocations: 0.625 kB / 0.9777 GB, free: 7.516 MB / 0.7481 GB Notification: Performance of simCode: created simulation system equations: time 0.006743/1.146, allocations: 1.255 MB / 0.9789 GB, free: 6.262 MB / 0.7481 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001787/1.148, allocations: 283.5 kB / 0.9792 GB, free: 5.992 MB / 0.7481 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.08981/1.238, allocations: 14.74 MB / 0.9936 GB, free: 7.184 MB / 0.7637 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005561/1.238, allocations: 0.8938 MB / 0.9944 GB, free: 6.262 MB / 0.7637 GB Notification: Performance of simCode: alias equations: time 0.001115/1.239, allocations: 256.9 kB / 0.9947 GB, free: 6.008 MB / 0.7637 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003235/1.24, allocations: 63.39 kB / 0.9948 GB, free: 5.945 MB / 0.7637 GB Notification: Performance of SimCode: time 1.042e-06/1.24, allocations: 0 / 0.9948 GB, free: 5.945 MB / 0.7637 GB Notification: Performance of Templates: time 0.02405/1.264, allocations: 13.16 MB / 1.008 GB, free: 8.91 MB / 0.7794 GB " [Timeout remaining time 659] make -j1 -f IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X.sim & ./IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 7.217491116840392] Failed to read output from testmodel.py, exit status != 0: 1.2743008178658783 1.289204818 0.42412318299999996 Calling exit ...