Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors.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 0.001375/0.001375, allocations: 119 kB / 17.17 MB, free: 5.906 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 0.001492/0.001492, allocations: 211 kB / 20.13 MB, free: 2.969 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 1.455/1.455, allocations: 230.6 MB / 253.5 MB, free: 15.09 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo): time 2.749/2.749, allocations: 476.7 MB / 0.7678 GB, free: 9.332 MB / 0.6075 GB " [Timeout remaining time 177] Using package Buildings with version 11.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/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(Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors,fileNamePrefix="Buildings_11_Buildings_Electrical_AC_ThreePhasesUnbalanced_Sensors_Examples_Sensors",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors,fileNamePrefix="Buildings_11_Buildings_Electrical_AC_ThreePhasesUnbalanced_Sensors_Examples_Sensors",fmuType="cs",version="2.0",platforms={"static"}) [Timeout 300] "Notification: Buildings 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 0.002115/0.002115, allocations: 71.89 kB / 1.113 GB, free: 15.83 MB / 0.8575 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8504/0.8525, allocations: 169.9 MB / 1.279 GB, free: 11.73 MB / 0.9981 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors): time 0.02532/0.8779, allocations: 17.56 MB / 1.296 GB, free: 124 kB / 0.9981 GB Notification: Performance of NFInst.instExpressions: time 0.01214/0.89, allocations: 5.949 MB / 1.302 GB, free: 12.08 MB / 1.014 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002085/0.8921, allocations: 60.53 kB / 1.302 GB, free: 12.07 MB / 1.014 GB Notification: Performance of NFTyping.typeComponents: time 0.004018/0.8961, allocations: 1.317 MB / 1.303 GB, free: 11.3 MB / 1.014 GB Notification: Performance of NFTyping.typeBindings: time 0.002473/0.8986, allocations: 0.8511 MB / 1.304 GB, free: 10.8 MB / 1.014 GB Notification: Performance of NFTyping.typeClassSections: time 0.003942/0.9025, allocations: 1.338 MB / 1.305 GB, free: 10.07 MB / 1.014 GB Notification: Performance of NFFlatten.flatten: time 0.005539/0.9081, allocations: 4.292 MB / 1.31 GB, free: 8.246 MB / 1.014 GB Notification: Performance of NFFlatten.resolveConnections: time 0.006664/0.9147, allocations: 4.94 MB / 1.314 GB, free: 6.332 MB / 1.014 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003982/0.9187, allocations: 1.954 MB / 1.316 GB, free: 5.453 MB / 1.014 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004613/0.9233, allocations: 2.416 MB / 1.319 GB, free: 4.469 MB / 1.014 GB Notification: Performance of NFPackage.collectConstants: time 0.0006931/0.924, allocations: 445.9 kB / 1.319 GB, free: 4.469 MB / 1.014 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002145/0.9262, allocations: 0.8584 MB / 1.32 GB, free: 4.316 MB / 1.014 GB Notification: Performance of NFScalarize.scalarize: time 0.002181/0.9283, allocations: 1.777 MB / 1.322 GB, free: 3.562 MB / 1.014 GB Notification: Performance of NFVerifyModel.verify: time 0.00252/0.9309, allocations: 1.754 MB / 1.323 GB, free: 2.422 MB / 1.014 GB Notification: Performance of NFConvertDAE.convert: time 0.008225/0.9391, allocations: 6.388 MB / 1.33 GB, free: 14.16 MB / 1.029 GB Notification: Performance of FrontEnd - DAE generated: time 5.45e-06/0.9391, allocations: 7.938 kB / 1.33 GB, free: 14.15 MB / 1.029 GB Notification: Performance of FrontEnd: time 2.304e-06/0.9391, allocations: 1.594 kB / 1.33 GB, free: 14.15 MB / 1.029 GB Notification: Performance of Transformations before backend: time 0.0001603/0.9393, allocations: 0 / 1.33 GB, free: 14.15 MB / 1.029 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 803 * Number of variables: 803 Notification: Performance of Generate backend data structure: time 0.007977/0.9472, allocations: 3.137 MB / 1.333 GB, free: 12.01 MB / 1.029 GB Notification: Performance of prepare preOptimizeDAE: time 4.754e-05/0.9473, allocations: 9.375 kB / 1.333 GB, free: 12.01 MB / 1.029 GB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 9.899e-05/0.9474, allocations: 80.16 kB / 1.333 GB, free: 12 MB / 1.029 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0007671/0.9481, allocations: 466.3 kB / 1.333 GB, free: 11.67 MB / 1.029 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005668/0.9538, allocations: 1.135 MB / 1.334 GB, free: 11.1 MB / 1.029 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00345/0.9573, allocations: 1.632 MB / 1.336 GB, free: 10.07 MB / 1.029 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002095/0.9575, allocations: 227.9 kB / 1.336 GB, free: 9.961 MB / 1.029 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007022/0.9582, allocations: 298.4 kB / 1.336 GB, free: 9.859 MB / 1.029 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01031/0.9685, allocations: 5.306 MB / 1.342 GB, free: 6.793 MB / 1.029 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.589e-05/0.9685, allocations: 5.219 kB / 1.342 GB, free: 6.789 MB / 1.029 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003905/0.9689, allocations: 127.3 kB / 1.342 GB, free: 6.691 MB / 1.029 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002467/0.9692, allocations: 205.2 kB / 1.342 GB, free: 6.641 MB / 1.029 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.009135/0.9783, allocations: 4.758 MB / 1.347 GB, free: 4.234 MB / 1.029 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03307/1.011, allocations: 23.03 MB / 1.369 GB, free: 13.52 MB / 1.061 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0051/1.016, allocations: 3.113 MB / 1.372 GB, free: 10.13 MB / 1.061 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001377/1.018, allocations: 0.8781 MB / 1.373 GB, free: 9.234 MB / 1.061 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001629/1.018, allocations: 105.7 kB / 1.373 GB, free: 9.113 MB / 1.061 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.048e-05/1.018, allocations: 55.16 kB / 1.373 GB, free: 9.051 MB / 1.061 GB Notification: Performance of pre-optimization done (n=82): time 2.545e-06/1.018, allocations: 0 / 1.373 GB, free: 9.051 MB / 1.061 GB Notification: Performance of matching and sorting (n=82): time 0.003595/1.022, allocations: 2.082 MB / 1.375 GB, free: 6.961 MB / 1.061 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000136/1.022, allocations: 222.2 kB / 1.375 GB, free: 6.695 MB / 1.061 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001557/1.023, allocations: 1.098 MB / 1.376 GB, free: 5.582 MB / 1.061 GB Notification: Performance of collectPreVariables (initialization): time 8.439e-05/1.023, allocations: 41.7 kB / 1.376 GB, free: 5.535 MB / 1.061 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009609/1.024, allocations: 1.329 MB / 1.378 GB, free: 4.191 MB / 1.061 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003052/1.025, allocations: 313.4 kB / 1.378 GB, free: 3.883 MB / 1.061 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006145/1.025, allocations: 359.3 kB / 1.378 GB, free: 3.527 MB / 1.061 GB Notification: Performance of setup shared object (initialization): time 0.0001681/1.025, allocations: 341.9 kB / 1.379 GB, free: 3.188 MB / 1.061 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001428/1.027, allocations: 0.8908 MB / 1.38 GB, free: 2.293 MB / 1.061 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001936/1.029, allocations: 1.519 MB / 1.381 GB, free: 0.5 MB / 1.061 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003279/1.032, allocations: 2.354 MB / 1.383 GB, free: 13.88 MB / 1.076 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.202e-05/1.032, allocations: 8 kB / 1.383 GB, free: 13.87 MB / 1.076 GB Notification: Performance of matching and sorting (n=197) (initialization): time 0.004294/1.036, allocations: 2.488 MB / 1.386 GB, free: 11.38 MB / 1.076 GB Notification: Performance of prepare postOptimizeDAE: time 3.901e-05/1.036, allocations: 22.12 kB / 1.386 GB, free: 11.36 MB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.343e-05/1.036, allocations: 16 kB / 1.386 GB, free: 11.34 MB / 1.076 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.798e-05/1.037, allocations: 28 kB / 1.386 GB, free: 11.31 MB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001698/1.038, allocations: 459.2 kB / 1.386 GB, free: 10.86 MB / 1.076 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.211e-05/1.038, allocations: 44.3 kB / 1.386 GB, free: 10.82 MB / 1.076 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0016/1.04, allocations: 350.4 kB / 1.387 GB, free: 10.48 MB / 1.076 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001557/1.04, allocations: 75.98 kB / 1.387 GB, free: 10.4 MB / 1.076 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.003347/1.043, allocations: 1.905 MB / 1.389 GB, free: 8.492 MB / 1.076 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001947/1.045, allocations: 1.446 MB / 1.39 GB, free: 6.762 MB / 1.076 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.003019/1.048, allocations: 2.202 MB / 1.392 GB, free: 4.285 MB / 1.076 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 9.898e-06/1.048, allocations: 4 kB / 1.392 GB, free: 4.281 MB / 1.076 GB Notification: Performance of matching and sorting (n=197) (initialization_lambda0): time 0.003823/1.052, allocations: 2.329 MB / 1.394 GB, free: 1.945 MB / 1.076 GB Notification: Performance of prepare postOptimizeDAE: time 2.467e-05/1.052, allocations: 16 kB / 1.394 GB, free: 1.93 MB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.329e-05/1.052, allocations: 23.98 kB / 1.395 GB, free: 1.906 MB / 1.076 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.261e-05/1.052, allocations: 35.92 kB / 1.395 GB, free: 1.871 MB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001505/1.054, allocations: 435.2 kB / 1.395 GB, free: 1.445 MB / 1.076 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.869e-05/1.054, allocations: 39.86 kB / 1.395 GB, free: 1.406 MB / 1.076 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00151/1.055, allocations: 295 kB / 1.395 GB, free: 1.117 MB / 1.076 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001263/1.055, allocations: 79.98 kB / 1.395 GB, free: 1.039 MB / 1.076 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 86 * 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 (197): * Single equations (assignments): 197 * 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 0.000393/1.056, allocations: 284.2 kB / 1.396 GB, free: 0.7539 MB / 1.076 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003008/1.056, allocations: 107.3 kB / 1.396 GB, free: 0.6484 MB / 1.076 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002744/1.059, allocations: 1.56 MB / 1.397 GB, free: 15.07 MB / 1.092 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.062e-05/1.059, allocations: 8 kB / 1.397 GB, free: 15.06 MB / 1.092 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.094e-05/1.059, allocations: 7.938 kB / 1.397 GB, free: 15.05 MB / 1.092 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.979e-06/1.059, allocations: 3.984 kB / 1.397 GB, free: 15.05 MB / 1.092 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007506/1.066, allocations: 4.47 MB / 1.402 GB, free: 10.46 MB / 1.092 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.186e-05/1.066, allocations: 8 kB / 1.402 GB, free: 10.45 MB / 1.092 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00105/1.067, allocations: 243.6 kB / 1.402 GB, free: 10.21 MB / 1.092 GB Notification: Performance of postOpt tearingSystem (simulation): time 9.378e-06/1.067, allocations: 7.938 kB / 1.402 GB, free: 10.2 MB / 1.092 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.709e-05/1.068, allocations: 16 kB / 1.402 GB, free: 10.19 MB / 1.092 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.297e-05/1.068, allocations: 11.92 kB / 1.402 GB, free: 10.18 MB / 1.092 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.392e-06/1.068, allocations: 7.938 kB / 1.402 GB, free: 10.17 MB / 1.092 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002564/1.07, allocations: 1.905 MB / 1.404 GB, free: 8.246 MB / 1.092 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006247/1.071, allocations: 328.1 kB / 1.404 GB, free: 7.906 MB / 1.092 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001572/1.071, allocations: 20 kB / 1.404 GB, free: 7.887 MB / 1.092 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009219/1.072, allocations: 123.8 kB / 1.404 GB, free: 7.766 MB / 1.092 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001606/1.072, allocations: 56.47 kB / 1.404 GB, free: 7.707 MB / 1.092 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.602e-05/1.072, allocations: 20 kB / 1.404 GB, free: 7.688 MB / 1.092 GB Notification: Performance of sorting global known variables: time 0.001186/1.073, allocations: 0.7995 MB / 1.405 GB, free: 6.891 MB / 1.092 GB Notification: Performance of sort global known variables: time 1e-07/1.073, allocations: 0 / 1.405 GB, free: 6.891 MB / 1.092 GB Notification: Performance of remove unused functions: time 0.003666/1.077, allocations: 1.323 MB / 1.406 GB, free: 5.562 MB / 1.092 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * 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 (85): * Single equations (assignments): 85 * 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 0.002795/1.08, allocations: 2.488 MB / 1.409 GB, free: 3.039 MB / 1.092 GB Notification: Performance of simCode: created initialization part: time 0.004872/1.085, allocations: 2.826 MB / 1.412 GB, free: 232 kB / 1.092 GB Notification: Performance of simCode: created event and clocks part: time 7.534e-06/1.085, allocations: 4 kB / 1.412 GB, free: 228 kB / 1.092 GB Notification: Performance of simCode: created simulation system equations: time 0.001032/1.086, allocations: 0.6216 MB / 1.412 GB, free: 15.61 MB / 1.107 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001628/1.087, allocations: 208.5 kB / 1.412 GB, free: 15.41 MB / 1.107 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02413/1.111, allocations: 15.24 MB / 1.427 GB, free: 15.49 MB / 1.123 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002494/1.114, allocations: 2.206 MB / 1.429 GB, free: 13.25 MB / 1.123 GB Notification: Performance of simCode: alias equations: time 0.002441/1.116, allocations: 1.101 MB / 1.43 GB, free: 12.15 MB / 1.123 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00126/1.118, allocations: 0.839 MB / 1.431 GB, free: 11.31 MB / 1.123 GB Notification: Performance of SimCode: time 7.92e-07/1.118, allocations: 0 / 1.431 GB, free: 11.31 MB / 1.123 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.07066/1.188, allocations: 32.3 MB / 1.463 GB, free: 11.3 MB / 1.154 GB Notification: Performance of buildModelFMU: Generate platform static: time 10.56/11.74, allocations: 6.797 kB / 1.463 GB, free: 11.3 MB / 1.154 GB " [Timeout remaining time 288] (rm -f Buildings_11_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors.pipe ; mkfifo Buildings_11_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors.pipe ; head -c 1048576 < Buildings_11_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors.pipe >> ../files/Buildings_11_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_11_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors_res.mat --tempDir=temp_Buildings_11_Buildings_Electrical_AC_ThreePhasesUnbalanced_Sensors_Examples_Sensors_fmu --startTime=0 --stopTime=1 --stepSize=0.0004 --timeout=400 --tolerance=1e-06 Buildings_11_Buildings_Electrical_AC_ThreePhasesUnbalanced_Sensors_Examples_Sensors.fmu > Buildings_11_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.Examples.Sensors.pipe 2>&1) [Timeout 420.0] [Calling os._exit(0), Time elapsed: 17.86622405302478] Failed to read output from testmodel.py, exit status != 0: 11.889654128986876 11.912882188 10.969287833 Calling exit ...