Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.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 0.001437/0.001437, allocations: 105.2 kB / 20.44 MB, free: 1.504 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 0.00176/0.00176, allocations: 213.8 kB / 23.76 MB, free: 4.723 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 1.509/1.509, allocations: 230.6 MB / 257.5 MB, free: 8.008 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 0.9706/0.9706, allocations: 150 MB / 463.9 MB, free: 10.5 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.Movers.BaseClasses.Validation.NegativePressureOrFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow") translateModel(IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow") [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 0.002058/0.002058, allocations: 65.83 kB / 0.6425 GB, free: 9.906 MB / 478.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.206/0.208, allocations: 89.16 MB / 0.7296 GB, free: 0.8008 MB / 0.545 GB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow): time 0.004066/0.2121, allocations: 2.413 MB / 0.7319 GB, free: 14.38 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.006948/0.219, allocations: 3.895 MB / 0.7357 GB, free: 10.47 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003509/0.2194, allocations: 11.94 kB / 0.7357 GB, free: 10.46 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.003266/0.2227, allocations: 1.131 MB / 0.7369 GB, free: 9.328 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.001032/0.2237, allocations: 458.3 kB / 0.7373 GB, free: 8.879 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.00133/0.225, allocations: 0.5341 MB / 0.7378 GB, free: 8.344 MB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.004717/0.2297, allocations: 2.949 MB / 0.7407 GB, free: 5.391 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001342/0.2299, allocations: 32.92 kB / 0.7407 GB, free: 5.355 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003778/0.2303, allocations: 239.2 kB / 0.7409 GB, free: 5.121 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0003442/0.2306, allocations: 239.1 kB / 0.7412 GB, free: 4.887 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 4.232e-05/0.2306, allocations: 16 kB / 0.7412 GB, free: 4.871 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001146/0.2318, allocations: 0.6434 MB / 0.7418 GB, free: 4.227 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0002396/0.232, allocations: 207.4 kB / 0.742 GB, free: 4.023 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.0002639/0.2323, allocations: 270.4 kB / 0.7423 GB, free: 3.758 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.00131/0.2336, allocations: 0.969 MB / 0.7432 GB, free: 2.785 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 6.281e-06/0.2336, allocations: 4 kB / 0.7432 GB, free: 2.781 MB / 0.5606 GB Notification: Performance of FrontEnd: time 1.453e-06/0.2336, allocations: 0 / 0.7432 GB, free: 2.781 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 8.736e-06/0.2336, allocations: 4 kB / 0.7432 GB, free: 2.777 MB / 0.5606 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 20 * Number of variables: 20 Notification: Performance of Generate backend data structure: time 0.001695/0.2353, allocations: 0.8765 MB / 0.7441 GB, free: 1.867 MB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 4.216e-05/0.2354, allocations: 11.97 kB / 0.7441 GB, free: 1.855 MB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000833/0.2362, allocations: 160.2 kB / 0.7443 GB, free: 1.699 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001798/0.238, allocations: 1.102 MB / 0.7453 GB, free: 0.5703 MB / 0.5606 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.037e-05/0.238, allocations: 8 kB / 0.7453 GB, free: 0.5625 MB / 0.5606 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.065e-05/0.238, allocations: 12 kB / 0.7453 GB, free: 0.5508 MB / 0.5606 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004798/0.2385, allocations: 175.6 kB / 0.7455 GB, free: 384 kB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.244e-05/0.2385, allocations: 3.984 kB / 0.7455 GB, free: 380 kB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.179e-05/0.2385, allocations: 4 kB / 0.7455 GB, free: 376 kB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.376e-06/0.2386, allocations: 4 kB / 0.7455 GB, free: 372 kB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005921/0.2391, allocations: 171.8 kB / 0.7457 GB, free: 200 kB / 0.5606 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0014/0.2405, allocations: 0.7021 MB / 0.7464 GB, free: 15.45 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008066/0.2414, allocations: 174.6 kB / 0.7465 GB, free: 15.27 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002634/0.2416, allocations: 80.73 kB / 0.7466 GB, free: 15.19 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 2.74e-05/0.2416, allocations: 4 kB / 0.7466 GB, free: 15.18 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.884e-05/0.2417, allocations: 38.55 kB / 0.7467 GB, free: 15.14 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=9): time 1.423e-06/0.2417, allocations: 0 / 0.7467 GB, free: 15.14 MB / 0.5762 GB Notification: Performance of matching and sorting (n=9): time 0.000949/0.2426, allocations: 317.2 kB / 0.747 GB, free: 14.82 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.718e-05/0.2427, allocations: 51.41 kB / 0.747 GB, free: 14.76 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009599/0.2436, allocations: 0.7813 MB / 0.7478 GB, free: 13.96 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 3.211e-05/0.2437, allocations: 29.7 kB / 0.7478 GB, free: 13.93 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002338/0.2439, allocations: 252.7 kB / 0.748 GB, free: 13.68 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 3.801e-05/0.2439, allocations: 35.72 kB / 0.7481 GB, free: 13.64 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000212/0.2441, allocations: 166 kB / 0.7482 GB, free: 13.48 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 0.0002095/0.2444, allocations: 374.7 kB / 0.7486 GB, free: 13.1 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005278/0.2449, allocations: 299.2 kB / 0.7489 GB, free: 12.8 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006482/0.2455, allocations: 420 kB / 0.7493 GB, free: 12.35 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001055/0.2466, allocations: 0.6169 MB / 0.7499 GB, free: 11.7 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.416e-06/0.2466, allocations: 0 / 0.7499 GB, free: 11.7 MB / 0.5762 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.001406/0.248, allocations: 0.8067 MB / 0.7507 GB, free: 10.88 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.813e-05/0.248, allocations: 4 kB / 0.7507 GB, free: 10.88 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.3e-05/0.248, allocations: 4 kB / 0.7507 GB, free: 10.88 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.125e-05/0.248, allocations: 4 kB / 0.7507 GB, free: 10.87 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000726/0.2488, allocations: 131.8 kB / 0.7508 GB, free: 10.74 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006211/0.2494, allocations: 0.629 MB / 0.7514 GB, free: 10.09 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004461/0.2498, allocations: 75.53 kB / 0.7515 GB, free: 10.02 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.578e-05/0.2499, allocations: 24 kB / 0.7515 GB, free: 9.992 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007506/0.2506, allocations: 481.5 kB / 0.752 GB, free: 9.52 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0005991/0.2512, allocations: 404 kB / 0.7524 GB, free: 9.086 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0009801/0.2522, allocations: 0.6139 MB / 0.753 GB, free: 8.434 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.973e-06/0.2522, allocations: 4 kB / 0.753 GB, free: 8.43 MB / 0.5762 GB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.001359/0.2536, allocations: 0.7857 MB / 0.7537 GB, free: 7.637 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.269e-05/0.2536, allocations: 8 kB / 0.7537 GB, free: 7.629 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.871e-06/0.2536, allocations: 4 kB / 0.7537 GB, free: 7.625 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 7.845e-06/0.2536, allocations: 4 kB / 0.7537 GB, free: 7.621 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005411/0.2541, allocations: 143.8 kB / 0.7539 GB, free: 7.48 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.093e-06/0.2542, allocations: 4 kB / 0.7539 GB, free: 7.477 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004239/0.2546, allocations: 59.73 kB / 0.7539 GB, free: 7.418 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.733e-05/0.2546, allocations: 20 kB / 0.754 GB, free: 7.398 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 13 * 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 (55): * Single equations (assignments): 52 * Array equations: 1 * Algorithm blocks: 0 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0001884/0.2548, allocations: 208.1 kB / 0.7542 GB, free: 7.188 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.257e-05/0.2549, allocations: 55.58 kB / 0.7542 GB, free: 7.133 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0007204/0.2556, allocations: 247.1 kB / 0.7544 GB, free: 6.883 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.961e-06/0.2556, allocations: 8 kB / 0.7545 GB, free: 6.875 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.398e-06/0.2556, allocations: 0 / 0.7545 GB, free: 6.875 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.727e-06/0.2556, allocations: 0 / 0.7545 GB, free: 6.875 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004751/0.2561, allocations: 360.4 kB / 0.7548 GB, free: 6.48 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.332e-06/0.2561, allocations: 3.938 kB / 0.7548 GB, free: 6.477 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002949/0.2564, allocations: 51.95 kB / 0.7549 GB, free: 6.426 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.635e-06/0.2564, allocations: 0 / 0.7549 GB, free: 6.426 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.699e-05/0.2564, allocations: 7.938 kB / 0.7549 GB, free: 6.418 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0004023/0.2568, allocations: 0.6054 MB / 0.7555 GB, free: 5.789 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.011e-06/0.2568, allocations: 0 / 0.7555 GB, free: 5.789 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0006538/0.2575, allocations: 343 kB / 0.7558 GB, free: 5.438 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001895/0.2577, allocations: 87.53 kB / 0.7559 GB, free: 5.352 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.771e-05/0.2577, allocations: 4 kB / 0.7559 GB, free: 5.348 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002686/0.258, allocations: 23.97 kB / 0.7559 GB, free: 5.324 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.629e-05/0.2581, allocations: 11.98 kB / 0.7559 GB, free: 5.312 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.678e-06/0.2581, allocations: 0 / 0.7559 GB, free: 5.312 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0006829/0.2588, allocations: 0.5302 MB / 0.7564 GB, free: 4.785 MB / 0.5762 GB Notification: Performance of sort global known variables: time 8e-08/0.2588, allocations: 0 / 0.7564 GB, free: 4.785 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.0009352/0.2597, allocations: 299.6 kB / 0.7567 GB, free: 4.492 MB / 0.5762 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 (10): * Single equations (assignments): 9 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0006922/0.2604, allocations: 331.5 kB / 0.757 GB, free: 4.156 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.002086/0.2625, allocations: 0.8035 MB / 0.7578 GB, free: 3.355 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 5.089e-06/0.2625, allocations: 4 kB / 0.7578 GB, free: 3.352 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.0003558/0.2628, allocations: 96.55 kB / 0.7579 GB, free: 3.258 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0008403/0.2637, allocations: 203.9 kB / 0.7581 GB, free: 3.066 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002977/0.2666, allocations: 1.163 MB / 0.7592 GB, free: 1.867 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005916/0.2672, allocations: 0.9013 MB / 0.7601 GB, free: 0.9375 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001779/0.2674, allocations: 55.41 kB / 0.7602 GB, free: 0.8828 MB / 0.5762 GB Notification: Performance of SimCode: time 1.122e-06/0.2674, allocations: 0 / 0.7602 GB, free: 0.8828 MB / 0.5762 GB Notification: Performance of Templates: time 0.3844/0.6518, allocations: 11.58 MB / 0.7715 GB, free: 32.8 MB / 0.5762 GB " [Timeout remaining time 659] make -j1 -f IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.sim & ./IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 11.997789633926004] Failed to read output from testmodel.py, exit status != 0: 0.6607323889620602 0.6746234120000001 0.43806658600000004 Calling exit ...