Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice.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 0.001541/0.001541, allocations: 77.55 kB / 19.76 MB, free: 2.027 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 0.001575/0.001575, allocations: 154.8 kB / 23.01 MB, free: 4.949 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 1.335/1.335, allocations: 177.2 MB / 203.4 MB, free: 8.961 MB / 190.1 MB " [Timeout remaining time 179] 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 0.8346/0.8346, allocations: 110.3 MB / 370.1 MB, free: 15.69 MB / 350.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:44:3-56:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:58:3-65:19:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:67:3-72:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:74:3-79:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. " [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: translateModel(BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice") translateModel(BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice") [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 0.002036/0.002036, allocations: 66.94 kB / 0.5483 GB, free: 13.31 MB / 0.5137 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:44:3-56:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:58:3-65:19:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:67:3-72:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:74:3-79:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. Notification: Performance of FrontEnd - Absyn->SCode: time 0.1447/0.1468, allocations: 87.86 MB / 0.6341 GB, free: 5.297 MB / 0.5919 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice): time 0.4172/0.564, allocations: 153.5 MB / 0.784 GB, free: 7.754 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.003829/0.5678, allocations: 2.183 MB / 0.7862 GB, free: 6.273 MB / 0.6544 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002287/0.568, allocations: 21.19 kB / 0.7862 GB, free: 6.262 MB / 0.6544 GB Notification: Performance of NFTyping.typeComponents: time 0.0007013/0.5687, allocations: 231.6 kB / 0.7864 GB, free: 6.121 MB / 0.6544 GB Notification: Performance of NFTyping.typeBindings: time 0.002103/0.5708, allocations: 0.9441 MB / 0.7873 GB, free: 5.629 MB / 0.6544 GB Notification: Performance of NFTyping.typeClassSections: time 0.001905/0.5728, allocations: 0.8469 MB / 0.7881 GB, free: 5.223 MB / 0.6544 GB Notification: Performance of NFFlatten.flatten: time 0.001153/0.5739, allocations: 0.9698 MB / 0.7891 GB, free: 4.781 MB / 0.6544 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0004237/0.5743, allocations: 272.4 kB / 0.7894 GB, free: 4.656 MB / 0.6544 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0006884/0.575, allocations: 483 kB / 0.7898 GB, free: 4.453 MB / 0.6544 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0004314/0.5754, allocations: 311.3 kB / 0.7901 GB, free: 4.336 MB / 0.6544 GB Notification: Performance of NFPackage.collectConstants: time 5.88e-05/0.5755, allocations: 33.41 kB / 0.7901 GB, free: 4.336 MB / 0.6544 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001386/0.5769, allocations: 0.8311 MB / 0.791 GB, free: 4.027 MB / 0.6544 GB Notification: Performance of NFScalarize.scalarize: time 0.0001816/0.5771, allocations: 150.9 kB / 0.7911 GB, free: 3.961 MB / 0.6544 GB Notification: Performance of NFVerifyModel.verify: time 0.0002387/0.5773, allocations: 206.3 kB / 0.7913 GB, free: 3.859 MB / 0.6544 GB Notification: Performance of NFConvertDAE.convert: time 0.00122/0.5785, allocations: 0.8977 MB / 0.7922 GB, free: 3.566 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 3.407e-06/0.5785, allocations: 0 / 0.7922 GB, free: 3.566 MB / 0.6544 GB Notification: Performance of FrontEnd: time 1.153e-06/0.5785, allocations: 3.938 kB / 0.7922 GB, free: 3.562 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 7.394e-06/0.5785, allocations: 0 / 0.7922 GB, free: 3.562 MB / 0.6544 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 74 * Number of variables: 74 Notification: Performance of Generate backend data structure: time 0.001236/0.5798, allocations: 0.7545 MB / 0.7929 GB, free: 3.008 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 3.023e-05/0.5798, allocations: 8.969 kB / 0.7929 GB, free: 3.008 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00118/0.581, allocations: 181.3 kB / 0.7931 GB, free: 2.965 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006357/0.5816, allocations: 325.8 kB / 0.7934 GB, free: 2.734 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.9e-05/0.5817, allocations: 25.8 kB / 0.7934 GB, free: 2.723 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.01e-05/0.5817, allocations: 28.66 kB / 0.7935 GB, free: 2.715 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006586/0.5824, allocations: 419.9 kB / 0.7939 GB, free: 2.469 MB / 0.6544 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.569e-05/0.5824, allocations: 5.062 kB / 0.7939 GB, free: 2.465 MB / 0.6544 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.231e-05/0.5824, allocations: 14.91 kB / 0.7939 GB, free: 2.453 MB / 0.6544 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.178e-05/0.5824, allocations: 11.36 kB / 0.7939 GB, free: 2.453 MB / 0.6544 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005189/0.583, allocations: 259.7 kB / 0.7941 GB, free: 2.375 MB / 0.6544 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 0.00172/0.5847, allocations: 1.246 MB / 0.7954 GB, free: 1.426 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0003823/0.5851, allocations: 194.1 kB / 0.7955 GB, free: 1.344 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002036/0.5853, allocations: 104.9 kB / 0.7956 GB, free: 1.309 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006236/0.5859, allocations: 126.6 kB / 0.7958 GB, free: 1.297 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.489e-05/0.5859, allocations: 39.75 kB / 0.7958 GB, free: 1.254 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=23): time 1.333e-06/0.5859, allocations: 0 / 0.7958 GB, free: 1.254 MB / 0.6544 GB Notification: Performance of matching and sorting (n=23): time 0.0008587/0.5868, allocations: 344.8 kB / 0.7961 GB, free: 1.129 MB / 0.6544 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.112e-05/0.5868, allocations: 58.91 kB / 0.7962 GB, free: 1.062 MB / 0.6544 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003396/0.5872, allocations: 325 kB / 0.7965 GB, free: 0.8945 MB / 0.6544 GB Notification: Performance of collectPreVariables (initialization): time 3.001e-05/0.5872, allocations: 32.39 kB / 0.7965 GB, free: 0.8594 MB / 0.6544 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001528/0.5873, allocations: 223 kB / 0.7967 GB, free: 0.6758 MB / 0.6544 GB Notification: Performance of collectInitialBindings (initialization): time 7.362e-05/0.5874, allocations: 78.77 kB / 0.7968 GB, free: 0.6133 MB / 0.6544 GB Notification: Performance of simplifyInitialFunctions (initialization): time 8.223e-05/0.5875, allocations: 56.14 kB / 0.7969 GB, free: 0.5781 MB / 0.6544 GB Notification: Performance of setup shared object (initialization): time 0.0001611/0.5877, allocations: 344.3 kB / 0.7972 GB, free: 256 kB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001806/0.5878, allocations: 76.11 kB / 0.7973 GB, free: 236 kB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002495/0.5881, allocations: 184.7 kB / 0.7974 GB, free: 108 kB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003905/0.5885, allocations: 212.9 kB / 0.7976 GB, free: 4 kB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.114e-06/0.5885, allocations: 1.125 kB / 0.7976 GB, free: 4 kB / 0.6544 GB Notification: Performance of matching and sorting (n=28) (initialization): time 0.000521/0.589, allocations: 269.7 kB / 0.7979 GB, free: 15.89 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 1.172e-05/0.589, allocations: 5.938 kB / 0.7979 GB, free: 15.89 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.588e-06/0.589, allocations: 1.281 kB / 0.7979 GB, free: 15.89 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.403e-05/0.589, allocations: 2.375 kB / 0.7979 GB, free: 15.89 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002209/0.5893, allocations: 53.91 kB / 0.798 GB, free: 15.88 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.052e-06/0.5893, allocations: 2.203 kB / 0.798 GB, free: 15.88 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001875/0.5894, allocations: 26.02 kB / 0.798 GB, free: 15.86 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.834e-05/0.5895, allocations: 14.78 kB / 0.798 GB, free: 15.86 MB / 0.67 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * 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 (28): * Single equations (assignments): 28 * 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 0.0001767/0.5897, allocations: 164.4 kB / 0.7982 GB, free: 15.71 MB / 0.67 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.797e-05/0.5897, allocations: 37.17 kB / 0.7982 GB, free: 15.7 MB / 0.67 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005465/0.5903, allocations: 282.5 kB / 0.7985 GB, free: 15.58 MB / 0.67 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.256e-06/0.5903, allocations: 6.156 kB / 0.7985 GB, free: 15.57 MB / 0.67 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.878e-06/0.5903, allocations: 5.125 kB / 0.7985 GB, free: 15.57 MB / 0.67 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.637e-06/0.5903, allocations: 0 / 0.7985 GB, free: 15.57 MB / 0.67 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001169/0.5914, allocations: 0.701 MB / 0.7992 GB, free: 15.14 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.805e-06/0.5915, allocations: 1.438 kB / 0.7992 GB, free: 15.14 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002234/0.5917, allocations: 53.39 kB / 0.7992 GB, free: 15.13 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.677e-06/0.5917, allocations: 2.594 kB / 0.7992 GB, free: 15.13 MB / 0.67 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.493e-05/0.5917, allocations: 12.52 kB / 0.7992 GB, free: 15.12 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.787e-06/0.5917, allocations: 3.219 kB / 0.7992 GB, free: 15.12 MB / 0.67 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.607e-06/0.5917, allocations: 6.031 kB / 0.7992 GB, free: 15.12 MB / 0.67 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007819/0.5925, allocations: 0.4912 MB / 0.7997 GB, free: 14.82 MB / 0.67 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001383/0.5926, allocations: 60.58 kB / 0.7998 GB, free: 14.79 MB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.535e-05/0.5927, allocations: 13 kB / 0.7998 GB, free: 14.78 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002464/0.5929, allocations: 14.61 kB / 0.7998 GB, free: 14.77 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.351e-05/0.593, allocations: 23.7 kB / 0.7998 GB, free: 14.77 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.044e-05/0.593, allocations: 12.7 kB / 0.7998 GB, free: 14.76 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.0002467/0.5932, allocations: 231.9 kB / 0.8001 GB, free: 14.64 MB / 0.67 GB Notification: Performance of sort global known variables: time 9.1e-08/0.5932, allocations: 0 / 0.8001 GB, free: 14.64 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.0004173/0.5937, allocations: 125.9 kB / 0.8002 GB, free: 14.61 MB / 0.67 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 3 (ori.mExc,den1.d,den2.d) * 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 (23): * Single equations (assignments): 23 * 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 0.000269/0.5939, allocations: 172.2 kB / 0.8003 GB, free: 14.49 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.0004499/0.5944, allocations: 200.5 kB / 0.8005 GB, free: 14.44 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 2.524e-06/0.5944, allocations: 1.031 kB / 0.8005 GB, free: 14.44 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.0002175/0.5946, allocations: 111.6 kB / 0.8006 GB, free: 14.4 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0008146/0.5954, allocations: 156.9 kB / 0.8008 GB, free: 14.37 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00139/0.5968, allocations: 0.9078 MB / 0.8017 GB, free: 13.78 MB / 0.67 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002049/0.597, allocations: 223.5 kB / 0.8019 GB, free: 13.68 MB / 0.67 GB Notification: Performance of simCode: alias equations: time 0.0002034/0.5972, allocations: 66.69 kB / 0.8019 GB, free: 13.67 MB / 0.67 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 8.311e-05/0.5973, allocations: 41.62 kB / 0.802 GB, free: 13.65 MB / 0.67 GB Notification: Performance of SimCode: time 3.11e-07/0.5973, allocations: 0 / 0.802 GB, free: 13.65 MB / 0.67 GB Notification: Performance of Templates: time 0.01137/0.6087, allocations: 6.646 MB / 0.8085 GB, free: 12.39 MB / 0.67 GB " [Timeout remaining time 659] make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice.makefile [Timeout 660] (rm -f BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice.sim & ./BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice -abortSlowSimulation -alarm=480 -s ida -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.Orifice.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 5.6280624399660155] Failed to read output from testmodel.py, exit status != 0: 0.616608420968987 0.628724008 0.047462724000000005 Calling exit ...