Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeMFactor.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 0.0007854/0.0007854, allocations: 80.44 kB / 19.17 MB, free: 0.7344 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 0.0008223/0.0008223, allocations: 165.9 kB / 22.45 MB, free: 2.098 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 0.863/0.863, allocations: 177.1 MB / 202.8 MB, free: 5.754 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-531:190:writable] Warning: Lexer treating \\ as \\\\, since \\e is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-531:198:writable] Warning: Lexer treating \\ as \\\\, since \\< is not a valid Modelica escape sequence. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo): time 0.6996/0.6996, allocations: 154.6 MB / 413.7 MB, free: 0.8281 MB / 378.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/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 master/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 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: "" <> buildModelFMU(IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeMFactor,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_MixingVolumes_Validation_MixingVolumeMFactor",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeMFactor,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_MixingVolumes_Validation_MixingVolumeMFactor",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.503e-06/1.503e-06, allocations: 0 / 0.6181 GB, free: 13.72 MB / 0.5886 GB Notification: Performance of FrontEnd - Absyn->SCode: time 1.304e-05/1.454e-05, allocations: 5.375 kB / 0.6181 GB, free: 13.71 MB / 0.5886 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeMFactor): time 0.3985/0.3985, allocations: 185.7 MB / 0.7994 GB, free: 14.84 MB / 0.6667 GB Notification: Performance of NFInst.instExpressions: time 0.01105/0.4096, allocations: 9.294 MB / 0.8085 GB, free: 8.531 MB / 0.6667 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001213/0.4108, allocations: 80.59 kB / 0.8085 GB, free: 8.488 MB / 0.6667 GB Notification: Performance of NFTyping.typeComponents: time 0.001712/0.4125, allocations: 0.7629 MB / 0.8093 GB, free: 8.059 MB / 0.6667 GB Notification: Performance of NFTyping.typeBindings: time 0.00501/0.4175, allocations: 2.99 MB / 0.8122 GB, free: 6.004 MB / 0.6667 GB Notification: Performance of NFTyping.typeClassSections: time 0.002554/0.4201, allocations: 1.496 MB / 0.8137 GB, free: 4.848 MB / 0.6667 GB Notification: Performance of NFFlatten.flatten: time 0.003763/0.4238, allocations: 4.197 MB / 0.8178 GB, free: 2.359 MB / 0.6667 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001034/0.4249, allocations: 0.9963 MB / 0.8187 GB, free: 1.637 MB / 0.6667 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00272/0.4276, allocations: 2.336 MB / 0.821 GB, free: 184 kB / 0.6667 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001299/0.4289, allocations: 1.158 MB / 0.8221 GB, free: 15.55 MB / 0.6823 GB Notification: Performance of NFPackage.collectConstants: time 0.0001264/0.429, allocations: 141.3 kB / 0.8223 GB, free: 15.55 MB / 0.6823 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002688/0.4317, allocations: 1.977 MB / 0.8242 GB, free: 14.48 MB / 0.6823 GB Notification: Performance of NFScalarize.scalarize: time 0.000405/0.4321, allocations: 0.659 MB / 0.8248 GB, free: 14.02 MB / 0.6823 GB Notification: Performance of NFVerifyModel.verify: time 0.0004507/0.4325, allocations: 0.6139 MB / 0.8254 GB, free: 13.72 MB / 0.6823 GB Notification: Performance of NFConvertDAE.convert: time 0.002391/0.4349, allocations: 3.047 MB / 0.8284 GB, free: 11.79 MB / 0.6823 GB Notification: Performance of FrontEnd - DAE generated: time 3.797e-06/0.4349, allocations: 0 / 0.8284 GB, free: 11.79 MB / 0.6823 GB Notification: Performance of FrontEnd: time 1.463e-06/0.4349, allocations: 3.281 kB / 0.8284 GB, free: 11.79 MB / 0.6823 GB Notification: Performance of Transformations before backend: time 1.39e-05/0.435, allocations: 2.656 kB / 0.8284 GB, free: 11.79 MB / 0.6823 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 272 * Number of variables: 272 Notification: Performance of Generate backend data structure: time 0.001993/0.4369, allocations: 1.86 MB / 0.8302 GB, free: 10.43 MB / 0.6823 GB Notification: Performance of prepare preOptimizeDAE: time 5.218e-05/0.437, allocations: 10.66 kB / 0.8303 GB, free: 10.42 MB / 0.6823 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001657/0.4372, allocations: 169.2 kB / 0.8304 GB, free: 10.25 MB / 0.6823 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001608/0.4388, allocations: 498.5 kB / 0.8309 GB, free: 9.758 MB / 0.6823 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001291/0.4401, allocations: 1.06 MB / 0.8319 GB, free: 8.656 MB / 0.6823 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.971e-05/0.4401, allocations: 85.27 kB / 0.832 GB, free: 8.574 MB / 0.6823 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001332/0.4402, allocations: 108 kB / 0.8321 GB, free: 8.469 MB / 0.6823 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001475/0.4417, allocations: 1.616 MB / 0.8337 GB, free: 6.711 MB / 0.6823 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.221e-05/0.4417, allocations: 0 / 0.8337 GB, free: 6.711 MB / 0.6823 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.617e-05/0.4418, allocations: 44 kB / 0.8337 GB, free: 6.668 MB / 0.6823 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.003e-05/0.4419, allocations: 50.06 kB / 0.8338 GB, free: 6.617 MB / 0.6823 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001231/0.4431, allocations: 1.062 MB / 0.8348 GB, free: 5.547 MB / 0.6823 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003391/0.4465, allocations: 2.889 MB / 0.8376 GB, free: 2.598 MB / 0.6823 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007485/0.4472, allocations: 0.7553 MB / 0.8384 GB, free: 1.84 MB / 0.6823 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000411/0.4476, allocations: 454.6 kB / 0.8388 GB, free: 1.398 MB / 0.6823 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001592/0.4478, allocations: 60.97 kB / 0.8389 GB, free: 1.336 MB / 0.6823 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.784e-05/0.4478, allocations: 59.48 kB / 0.8389 GB, free: 1.27 MB / 0.6823 GB Notification: Performance of pre-optimization done (n=83): time 2.124e-06/0.4478, allocations: 0 / 0.8389 GB, free: 1.27 MB / 0.6823 GB Notification: Performance of matching and sorting (n=89): time 0.003165/0.451, allocations: 2.642 MB / 0.8415 GB, free: 14.61 MB / 0.698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.267e-05/0.451, allocations: 64.34 kB / 0.8416 GB, free: 14.53 MB / 0.698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007503/0.4518, allocations: 0.9793 MB / 0.8425 GB, free: 13.53 MB / 0.698 GB Notification: Performance of collectPreVariables (initialization): time 4.885e-05/0.4518, allocations: 49.7 kB / 0.8426 GB, free: 13.48 MB / 0.698 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003365/0.4522, allocations: 0.5443 MB / 0.8431 GB, free: 12.93 MB / 0.698 GB Notification: Performance of collectInitialBindings (initialization): time 0.000214/0.4524, allocations: 321.2 kB / 0.8434 GB, free: 12.61 MB / 0.698 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001659/0.4525, allocations: 154.6 kB / 0.8436 GB, free: 12.45 MB / 0.698 GB Notification: Performance of setup shared object (initialization): time 0.000112/0.4526, allocations: 341.9 kB / 0.8439 GB, free: 12.11 MB / 0.698 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003727/0.453, allocations: 341.8 kB / 0.8442 GB, free: 11.78 MB / 0.698 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007876/0.4538, allocations: 0.5749 MB / 0.8448 GB, free: 11.14 MB / 0.698 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol.dynBal.medium.p = vol.dynBal.p_start (bou.p = vol.dynBal.p_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: volMFactor.dynBal.medium.p = volMFactor.dynBal.p_start (bou.p = volMFactor.dynBal.p_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol1.dynBal.medium.p = vol1.dynBal.p_start (bou.p = vol1.dynBal.p_start) Notification: Performance of analyzeInitialSystem (initialization): time 0.003663/0.4575, allocations: 2.816 MB / 0.8475 GB, free: 8.297 MB / 0.698 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.965e-06/0.4575, allocations: 0 / 0.8475 GB, free: 8.297 MB / 0.698 GB Notification: Performance of matching and sorting (n=108) (initialization): time 0.001069/0.4585, allocations: 1.016 MB / 0.8485 GB, free: 7.27 MB / 0.698 GB Notification: Performance of prepare postOptimizeDAE: time 2.062e-05/0.4586, allocations: 4.375 kB / 0.8485 GB, free: 7.266 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.028e-05/0.4586, allocations: 14.12 kB / 0.8485 GB, free: 7.258 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.16e-05/0.4586, allocations: 11.94 kB / 0.8485 GB, free: 7.246 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004001/0.459, allocations: 183.7 kB / 0.8487 GB, free: 7.066 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.145e-05/0.459, allocations: 8 kB / 0.8487 GB, free: 7.059 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004106/0.4594, allocations: 27.92 kB / 0.8487 GB, free: 7.031 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.564e-05/0.4595, allocations: 32 kB / 0.8488 GB, free: 7 MB / 0.698 GB Warning: The initial conditions are over specified. The following 3 initial equations are redundant, so they are removed from the initialization system: vol.dynBal.medium.p = vol.dynBal.p_start volMFactor.dynBal.medium.p = volMFactor.dynBal.p_start vol1.dynBal.medium.p = vol1.dynBal.p_start. 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 (108): * Single equations (assignments): 108 * 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 0.0003454/0.4598, allocations: 378.5 kB / 0.8491 GB, free: 6.621 MB / 0.698 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001122/0.4599, allocations: 131.2 kB / 0.8493 GB, free: 6.492 MB / 0.698 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001505/0.4601, allocations: 148.3 kB / 0.8494 GB, free: 6.34 MB / 0.698 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.522e-06/0.4601, allocations: 11.94 kB / 0.8494 GB, free: 6.328 MB / 0.698 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.262e-05/0.4601, allocations: 3.984 kB / 0.8494 GB, free: 6.324 MB / 0.698 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0009308/0.461, allocations: 1.086 MB / 0.8505 GB, free: 5.168 MB / 0.698 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002988/0.464, allocations: 2.814 MB / 0.8532 GB, free: 2.184 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.49e-06/0.464, allocations: 8.969 kB / 0.8532 GB, free: 2.176 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003505/0.4644, allocations: 163.7 kB / 0.8534 GB, free: 2.016 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001892/0.4646, allocations: 109.5 kB / 0.8535 GB, free: 1.902 MB / 0.698 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.821e-05/0.4646, allocations: 28 kB / 0.8535 GB, free: 1.875 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001523/0.4661, allocations: 2.864 MB / 0.8563 GB, free: 14.78 MB / 0.7136 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.971e-06/0.4661, allocations: 11.94 kB / 0.8563 GB, free: 14.77 MB / 0.7136 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001451/0.4676, allocations: 1.727 MB / 0.858 GB, free: 12.9 MB / 0.7136 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002932/0.4679, allocations: 235.1 kB / 0.8582 GB, free: 12.67 MB / 0.7136 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003409/0.4682, allocations: 35.98 kB / 0.8583 GB, free: 12.64 MB / 0.7136 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004259/0.4686, allocations: 39.61 kB / 0.8583 GB, free: 12.6 MB / 0.7136 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.91e-05/0.4687, allocations: 88.28 kB / 0.8584 GB, free: 12.52 MB / 0.7136 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.636e-05/0.4688, allocations: 51.97 kB / 0.8585 GB, free: 12.46 MB / 0.7136 GB Notification: Performance of sorting global known variables: time 0.0005635/0.4693, allocations: 0.6917 MB / 0.8591 GB, free: 11.77 MB / 0.7136 GB Notification: Performance of sort global known variables: time 1.9e-07/0.4693, allocations: 3.938 kB / 0.8591 GB, free: 11.76 MB / 0.7136 GB Notification: Performance of remove unused functions: time 0.0006504/0.47, allocations: 379.9 kB / 0.8595 GB, free: 11.39 MB / 0.7136 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 39 * Number of states: 6 (vol.dynBal.medium.Xi[1],vol.dynBal.U,volMFactor.dynBal.medium.Xi[1],volMFactor.dynBal.U,vol1.dynBal.medium.Xi[1],vol1.dynBal.U) * 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): 83 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,2,100.0%), (1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.00182/0.4718, allocations: 2.397 MB / 0.8618 GB, free: 8.855 MB / 0.7136 GB Notification: Performance of simCode: created initialization part: time 0.0008384/0.4726, allocations: 0.8127 MB / 0.8626 GB, free: 8.039 MB / 0.7136 GB Notification: Performance of simCode: created event and clocks part: time 3.366e-06/0.4726, allocations: 0 / 0.8626 GB, free: 8.039 MB / 0.7136 GB Notification: Performance of simCode: created simulation system equations: time 0.0005783/0.4732, allocations: 0.6624 MB / 0.8633 GB, free: 7.355 MB / 0.7136 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002127/0.4753, allocations: 0.9218 MB / 0.8642 GB, free: 6.488 MB / 0.7136 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008814/0.4842, allocations: 9.595 MB / 0.8735 GB, free: 12.45 MB / 0.7292 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004973/0.4847, allocations: 0.6652 MB / 0.8742 GB, free: 11.75 MB / 0.7292 GB Notification: Performance of simCode: alias equations: time 0.0007534/0.4854, allocations: 346.9 kB / 0.8745 GB, free: 11.41 MB / 0.7292 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004319/0.4858, allocations: 476.3 kB / 0.875 GB, free: 10.94 MB / 0.7292 GB Notification: Performance of SimCode: time 5.61e-07/0.4858, allocations: 4 kB / 0.875 GB, free: 10.94 MB / 0.7292 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.049/0.5348, allocations: 42.37 MB / 0.9164 GB, free: 1.461 MB / 0.7605 GB Notification: Performance of buildModelFMU: Generate platform static: time 8.419/8.954, allocations: 11.03 kB / 0.9164 GB, free: 1.453 MB / 0.7605 GB " [Timeout remaining time 651] (rm -f IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeMFactor.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeMFactor.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeMFactor.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeMFactor.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_dev_IDEAS_Fluid_MixingVolumes_Validation_MixingVolumeMFactor_fmu --startTime=0 --stopTime=100 --stepSize=0.04 --timeout=50 --tolerance=1e-06 IDEAS_dev_IDEAS_Fluid_MixingVolumes_Validation_MixingVolumeMFactor.fmu > IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeMFactor.pipe 2>&1) [Timeout 52.5] [Calling sys.exit(0), Time elapsed: 11.582166572101414] Failed to read output from testmodel.py, exit status != 0: 9.057875624857843 9.066583772 8.629766477 Calling exit ...