Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL.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 0.001892/0.001892, allocations: 104.3 kB / 19.7 MB, free: 2.09 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 0.002609/0.002609, allocations: 208.4 kB / 22.99 MB, free: 4.926 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 1.545/1.545, allocations: 230.6 MB / 256.8 MB, free: 7.824 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 1.004/1.004, allocations: 149.9 MB / 463 MB, free: 10.39 MB / 366.1 MB " [Timeout remaining time 178] 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.Chillers.Validation.Carnot_TEva_etaPL,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL") translateModel(IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL") [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 0.003024/0.003024, allocations: 66.81 kB / 0.6415 GB, free: 9.656 MB / 478.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2198/0.2228, allocations: 89.19 MB / 0.7286 GB, free: 0.5352 MB / 0.545 GB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL): time 0.5028/0.7256, allocations: 56.51 MB / 0.7838 GB, free: 10.02 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.01807/0.7437, allocations: 11.12 MB / 0.7947 GB, free: 4.562 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002895/0.7466, allocations: 88.69 kB / 0.7948 GB, free: 4.512 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.002031/0.7486, allocations: 0.6761 MB / 0.7954 GB, free: 4.102 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.005923/0.7545, allocations: 2.077 MB / 0.7975 GB, free: 2.887 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.003338/0.7578, allocations: 1.218 MB / 0.7987 GB, free: 2.227 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.005094/0.7629, allocations: 3.103 MB / 0.8017 GB, free: 0.6914 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001552/0.7645, allocations: 0.8541 MB / 0.8025 GB, free: 228 kB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004251/0.7687, allocations: 1.539 MB / 0.804 GB, free: 15.48 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001774/0.7705, allocations: 0.8689 MB / 0.8049 GB, free: 15.11 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.0002037/0.7707, allocations: 114.3 kB / 0.805 GB, free: 15.11 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003299/0.774, allocations: 1.203 MB / 0.8062 GB, free: 14.76 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0003368/0.7744, allocations: 295.5 kB / 0.8064 GB, free: 14.57 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.0008148/0.7752, allocations: 0.557 MB / 0.807 GB, free: 14.27 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.004805/0.78, allocations: 2.303 MB / 0.8092 GB, free: 13.35 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 5.731e-06/0.78, allocations: 1.062 kB / 0.8092 GB, free: 13.35 MB / 0.5919 GB Notification: Performance of FrontEnd: time 1.653e-06/0.78, allocations: 0 / 0.8092 GB, free: 13.35 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 2.085e-05/0.78, allocations: 0 / 0.8092 GB, free: 13.35 MB / 0.5919 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 192 * Number of variables: 192 Notification: Performance of Generate backend data structure: time 0.003535/0.7835, allocations: 1.706 MB / 0.8109 GB, free: 12.05 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 4.3e-05/0.7836, allocations: 13.72 kB / 0.8109 GB, free: 12.04 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02668/0.8103, allocations: 4.135 MB / 0.8149 GB, free: 10.31 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003478/0.8137, allocations: 1.195 MB / 0.8161 GB, free: 9.371 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.853e-05/0.8138, allocations: 68.28 kB / 0.8162 GB, free: 9.34 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001823/0.814, allocations: 78 kB / 0.8163 GB, free: 9.316 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01087/0.8249, allocations: 2.5 MB / 0.8187 GB, free: 7.906 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.287e-05/0.8249, allocations: 2.422 kB / 0.8187 GB, free: 7.906 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001267/0.825, allocations: 31.47 kB / 0.8187 GB, free: 7.883 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.492e-05/0.8251, allocations: 27.56 kB / 0.8188 GB, free: 7.875 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01707/0.8421, allocations: 3.586 MB / 0.8223 GB, free: 6.25 MB / 0.5919 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 0.01896/0.8611, allocations: 6.949 MB / 0.829 GB, free: 0.5977 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.1463/1.007, allocations: 22.84 MB / 0.8513 GB, free: 10.78 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.008306/1.016, allocations: 1.671 MB / 0.853 GB, free: 9.105 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005353/1.016, allocations: 83.94 kB / 0.8531 GB, free: 9.023 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 7.386e-05/1.016, allocations: 34.56 kB / 0.8531 GB, free: 8.98 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=44): time 4.368e-06/1.016, allocations: 7.938 kB / 0.8531 GB, free: 8.973 MB / 0.6231 GB Notification: Performance of matching and sorting (n=44): time 0.02862/1.045, allocations: 5.48 MB / 0.8584 GB, free: 3.477 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.563e-05/1.045, allocations: 59.36 kB / 0.8585 GB, free: 3.406 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002486/1.047, allocations: 0.948 MB / 0.8594 GB, free: 2.438 MB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 0.0002509/1.048, allocations: 37.7 kB / 0.8595 GB, free: 2.395 MB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008644/1.049, allocations: 0.5547 MB / 0.86 GB, free: 1.832 MB / 0.6231 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003568/1.049, allocations: 170.6 kB / 0.8602 GB, free: 1.664 MB / 0.6231 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004398/1.049, allocations: 146.2 kB / 0.8603 GB, free: 1.516 MB / 0.6231 GB Notification: Performance of setup shared object (initialization): time 0.0001834/1.05, allocations: 334 kB / 0.8606 GB, free: 1.184 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.008459/1.058, allocations: 1.705 MB / 0.8623 GB, free: 15.47 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.009045/1.067, allocations: 2.297 MB / 0.8645 GB, free: 12.99 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01557/1.083, allocations: 3.101 MB / 0.8676 GB, free: 9.82 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.612e-05/1.083, allocations: 0 / 0.8676 GB, free: 9.82 MB / 0.6387 GB Notification: Performance of matching and sorting (n=71) (initialization): time 0.01788/1.101, allocations: 3.617 MB / 0.8711 GB, free: 6.191 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 3.326e-05/1.101, allocations: 8 kB / 0.8711 GB, free: 6.184 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.611e-05/1.101, allocations: 4 kB / 0.8711 GB, free: 6.18 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001461/1.102, allocations: 303.1 kB / 0.8714 GB, free: 5.883 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004767/1.107, allocations: 0.749 MB / 0.8721 GB, free: 5.133 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001831/1.109, allocations: 0.9018 MB / 0.873 GB, free: 4.207 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005447/1.114, allocations: 0.7449 MB / 0.8737 GB, free: 3.461 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002346/1.114, allocations: 39.97 kB / 0.8738 GB, free: 3.422 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008927/1.123, allocations: 1.914 MB / 0.8756 GB, free: 1.504 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.008889/1.132, allocations: 2.297 MB / 0.8779 GB, free: 15.02 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.01547/1.148, allocations: 3.09 MB / 0.8809 GB, free: 11.87 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.346e-05/1.148, allocations: 4 kB / 0.8809 GB, free: 11.86 MB / 0.6544 GB Notification: Performance of matching and sorting (n=71) (initialization_lambda0): time 0.01779/1.165, allocations: 3.6 MB / 0.8844 GB, free: 8.25 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 3.186e-05/1.165, allocations: 8 kB / 0.8844 GB, free: 8.242 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.778e-05/1.165, allocations: 4 kB / 0.8844 GB, free: 8.238 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001335/1.167, allocations: 293.2 kB / 0.8847 GB, free: 7.953 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004694/1.171, allocations: 0.7568 MB / 0.8855 GB, free: 7.195 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001707/1.173, allocations: 0.8924 MB / 0.8863 GB, free: 6.281 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005415/1.179, allocations: 0.7411 MB / 0.8871 GB, free: 5.539 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002096/1.179, allocations: 35.97 kB / 0.8871 GB, free: 5.504 MB / 0.6544 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 21 * 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 (57): * Single equations (assignments): 56 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,14)} Notification: Performance of prepare postOptimizeDAE: time 0.0004444/1.179, allocations: 228 kB / 0.8873 GB, free: 5.273 MB / 0.6544 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004958/1.18, allocations: 107.3 kB / 0.8874 GB, free: 5.168 MB / 0.6544 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01719/1.197, allocations: 3.595 MB / 0.8909 GB, free: 1.562 MB / 0.6544 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.083e-05/1.197, allocations: 7.984 kB / 0.8909 GB, free: 1.555 MB / 0.6544 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.296e-05/1.197, allocations: 4 kB / 0.8909 GB, free: 1.551 MB / 0.6544 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.082e-05/1.197, allocations: 0 / 0.8909 GB, free: 1.551 MB / 0.6544 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02172/1.219, allocations: 5.134 MB / 0.8959 GB, free: 12.29 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.56e-05/1.219, allocations: 4 kB / 0.8959 GB, free: 12.28 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004378/1.223, allocations: 0.6791 MB / 0.8966 GB, free: 11.6 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001104/1.224, allocations: 311.1 kB / 0.8969 GB, free: 11.3 MB / 0.67 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.467e-05/1.224, allocations: 19.98 kB / 0.8969 GB, free: 11.28 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001622/1.226, allocations: 0.9309 MB / 0.8978 GB, free: 10.32 MB / 0.67 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.619e-06/1.226, allocations: 3.938 kB / 0.8978 GB, free: 10.32 MB / 0.67 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01853/1.244, allocations: 3.763 MB / 0.9015 GB, free: 6.5 MB / 0.67 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001072/1.246, allocations: 255 kB / 0.9018 GB, free: 6.25 MB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004433/1.246, allocations: 20 kB / 0.9018 GB, free: 6.23 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004888/1.251, allocations: 0.6788 MB / 0.9024 GB, free: 5.551 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001139/1.251, allocations: 39.81 kB / 0.9025 GB, free: 5.512 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001147/1.251, allocations: 31.97 kB / 0.9025 GB, free: 5.48 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.001321/1.252, allocations: 0.6579 MB / 0.9031 GB, free: 4.812 MB / 0.67 GB Notification: Performance of sort global known variables: time 1.31e-07/1.252, allocations: 0 / 0.9031 GB, free: 4.812 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.002454/1.255, allocations: 0.6587 MB / 0.9038 GB, free: 4.152 MB / 0.67 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 10 * 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 (34): * Single equations (assignments): 29 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,16)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0008952/1.256, allocations: 370.6 kB / 0.9041 GB, free: 3.781 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.02637/1.282, allocations: 5.303 MB / 0.9093 GB, free: 14.48 MB / 0.6856 GB Notification: Performance of simCode: created event and clocks part: time 2.315e-05/1.282, allocations: 4 kB / 0.9093 GB, free: 14.47 MB / 0.6856 GB Notification: Performance of simCode: created simulation system equations: time 0.008739/1.291, allocations: 1.724 MB / 0.911 GB, free: 12.75 MB / 0.6856 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002746/1.294, allocations: 400.4 kB / 0.9114 GB, free: 12.37 MB / 0.6856 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1423/1.436, allocations: 22.77 MB / 0.9336 GB, free: 5.508 MB / 0.7012 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007082/1.437, allocations: 481.6 kB / 0.9341 GB, free: 5 MB / 0.7012 GB Notification: Performance of simCode: alias equations: time 0.00185/1.439, allocations: 306.5 kB / 0.9344 GB, free: 4.703 MB / 0.7012 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004895/1.439, allocations: 83.33 kB / 0.9345 GB, free: 4.621 MB / 0.7012 GB Notification: Performance of SimCode: time 8.52e-07/1.439, allocations: 0 / 0.9345 GB, free: 4.621 MB / 0.7012 GB Notification: Performance of Templates: time 0.04876/1.488, allocations: 27.17 MB / 0.961 GB, free: 9.852 MB / 0.7325 GB " [Timeout remaining time 659] make -j1 -f IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL.sim & ./IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_etaPL.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 8.247586390003562] Failed to read output from testmodel.py, exit status != 0: 1.5002835001796484 1.517431339 0.7325924309999999 Calling exit ...