Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody.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 0.000715/0.000715, allocations: 76.5 kB / 19.93 MB, free: 4.633 MB / 18.57 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 0.0007205/0.0007205, allocations: 174.3 kB / 23.21 MB, free: 1.355 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 0.816/0.816, allocations: 177.1 MB / 203.5 MB, free: 5.754 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Examples/PPD12/Structure.mo:531:21-531:686:writable] Warning: Lexer treating \\ as \\\\, since \\e is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Examples/PPD12/Structure.mo:531:21-531:694:writable] Warning: Lexer treating \\ as \\\\, since \\< is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Media/Refrigerants/R410A/package.order:0:0-0:0:readonly] Warning: Found duplicate names in package.order file: A, B, C. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/Media/Refrigerants/R410A/package.mo:2:1-70:10:writable] Warning: C was referenced in the package.order file, but was not found in package.mo, C/package.mo or C.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/package.mo): time 0.6785/0.6785, allocations: 154.6 MB / 414.5 MB, free: 0.8086 MB / 378.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 4.0.0/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 4.0.0/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 4.0.0/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(IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody") translateModel(IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.463e-06/1.463e-06, allocations: 0 / 0.6193 GB, free: 13.2 MB / 0.5886 GB Notification: Performance of FrontEnd - Absyn->SCode: time 1.404e-05/1.55e-05, allocations: 2.281 kB / 0.6193 GB, free: 13.2 MB / 0.5886 GB Notification: Performance of NFInst.instantiate(IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody): time 0.004152/0.004167, allocations: 4.489 MB / 0.6237 GB, free: 8.684 MB / 0.5886 GB Notification: Performance of NFInst.instExpressions: time 0.3542/0.3584, allocations: 132.8 MB / 0.7533 GB, free: 15.45 MB / 0.6355 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000606/0.359, allocations: 26.81 kB / 0.7534 GB, free: 15.44 MB / 0.6355 GB Notification: Performance of NFTyping.typeComponents: time 0.0004505/0.3595, allocations: 199.5 kB / 0.7535 GB, free: 15.3 MB / 0.6355 GB Notification: Performance of NFTyping.typeBindings: time 0.001159/0.3606, allocations: 0.5963 MB / 0.7541 GB, free: 14.95 MB / 0.6355 GB Notification: Performance of NFTyping.typeClassSections: time 0.001254/0.3619, allocations: 0.8805 MB / 0.755 GB, free: 14.5 MB / 0.6355 GB Notification: Performance of NFFlatten.flatten: time 0.0008714/0.3627, allocations: 1.478 MB / 0.7564 GB, free: 13.71 MB / 0.6355 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000465/0.3632, allocations: 410.1 kB / 0.7568 GB, free: 13.48 MB / 0.6355 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0006083/0.3638, allocations: 0.7487 MB / 0.7576 GB, free: 13.13 MB / 0.6355 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0003584/0.3642, allocations: 414.3 kB / 0.7579 GB, free: 12.98 MB / 0.6355 GB Notification: Performance of NFPackage.collectConstants: time 0.0001089/0.3643, allocations: 120.9 kB / 0.7581 GB, free: 12.98 MB / 0.6355 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0005327/0.3648, allocations: 0.492 MB / 0.7585 GB, free: 12.86 MB / 0.6355 GB Notification: Performance of NFScalarize.scalarize: time 0.0001756/0.365, allocations: 309.2 kB / 0.7588 GB, free: 12.66 MB / 0.6355 GB Notification: Performance of NFVerifyModel.verify: time 0.0002481/0.3652, allocations: 396.9 kB / 0.7592 GB, free: 12.46 MB / 0.6355 GB Notification: Performance of NFConvertDAE.convert: time 0.001336/0.3666, allocations: 1.797 MB / 0.761 GB, free: 11.72 MB / 0.6355 GB Notification: Performance of FrontEnd - DAE generated: time 3.527e-06/0.3666, allocations: 0.9375 kB / 0.761 GB, free: 11.72 MB / 0.6355 GB Notification: Performance of FrontEnd: time 1.183e-06/0.3666, allocations: 7.938 kB / 0.761 GB, free: 11.71 MB / 0.6355 GB Notification: Performance of Transformations before backend: time 1.37e-05/0.3666, allocations: 0 / 0.761 GB, free: 11.71 MB / 0.6355 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 222 * Number of variables: 222 Notification: Performance of Generate backend data structure: time 0.001487/0.3681, allocations: 1.431 MB / 0.7624 GB, free: 10.78 MB / 0.6355 GB Notification: Performance of prepare preOptimizeDAE: time 2.987e-05/0.3681, allocations: 10.16 kB / 0.7624 GB, free: 10.78 MB / 0.6355 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008855/0.369, allocations: 288.6 kB / 0.7627 GB, free: 10.7 MB / 0.6355 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007318/0.3697, allocations: 0.7192 MB / 0.7634 GB, free: 10.25 MB / 0.6355 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.886e-05/0.3698, allocations: 67.47 kB / 0.7634 GB, free: 10.22 MB / 0.6355 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.716e-05/0.3698, allocations: 89.11 kB / 0.7635 GB, free: 10.19 MB / 0.6355 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00104/0.3709, allocations: 1.231 MB / 0.7647 GB, free: 9.418 MB / 0.6355 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.706e-05/0.3709, allocations: 4.641 kB / 0.7647 GB, free: 9.414 MB / 0.6355 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.055e-05/0.371, allocations: 39.09 kB / 0.7648 GB, free: 9.387 MB / 0.6355 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.306e-05/0.371, allocations: 22.53 kB / 0.7648 GB, free: 9.387 MB / 0.6355 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001216/0.3722, allocations: 1.117 MB / 0.7659 GB, free: 9.125 MB / 0.6355 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00221/0.3744, allocations: 2.402 MB / 0.7682 GB, free: 7.613 MB / 0.6355 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001067/0.3755, allocations: 0.8306 MB / 0.769 GB, free: 7.301 MB / 0.6355 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003341/0.3758, allocations: 287.2 kB / 0.7693 GB, free: 7.191 MB / 0.6355 GB Notification: Performance of preOpt evalFunc (simulation): time 5.507e-05/0.3758, allocations: 25.83 kB / 0.7693 GB, free: 7.188 MB / 0.6355 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005611/0.3764, allocations: 0.6085 MB / 0.7699 GB, free: 6.848 MB / 0.6355 GB Notification: Performance of pre-optimization done (n=83): time 2.014e-06/0.3764, allocations: 0 / 0.7699 GB, free: 6.848 MB / 0.6355 GB Notification: Performance of matching and sorting (n=83): time 0.001776/0.3782, allocations: 1.144 MB / 0.771 GB, free: 6.438 MB / 0.6355 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.703e-05/0.3782, allocations: 199.5 kB / 0.7712 GB, free: 6.211 MB / 0.6355 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004717/0.3787, allocations: 0.6134 MB / 0.7718 GB, free: 5.934 MB / 0.6355 GB Notification: Performance of collectPreVariables (initialization): time 4.295e-05/0.3787, allocations: 41.92 kB / 0.7719 GB, free: 5.891 MB / 0.6355 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001591/0.3789, allocations: 419.8 kB / 0.7723 GB, free: 5.566 MB / 0.6355 GB Notification: Performance of collectInitialBindings (initialization): time 9.987e-05/0.379, allocations: 283.6 kB / 0.7725 GB, free: 5.34 MB / 0.6355 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001464/0.3791, allocations: 169.8 kB / 0.7727 GB, free: 5.258 MB / 0.6355 GB Notification: Performance of setup shared object (initialization): time 6.7e-05/0.3792, allocations: 383.4 kB / 0.7731 GB, free: 4.914 MB / 0.6355 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003297/0.3795, allocations: 275.4 kB / 0.7733 GB, free: 4.82 MB / 0.6355 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004036/0.3799, allocations: 0.5065 MB / 0.7738 GB, free: 4.477 MB / 0.6355 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006844/0.3806, allocations: 0.6492 MB / 0.7745 GB, free: 4.156 MB / 0.6355 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.895e-06/0.3806, allocations: 1.188 kB / 0.7745 GB, free: 4.156 MB / 0.6355 GB Notification: Performance of matching and sorting (n=102) (initialization): time 0.001109/0.3817, allocations: 0.8865 MB / 0.7753 GB, free: 3.805 MB / 0.6355 GB Notification: Performance of prepare postOptimizeDAE: time 1.428e-05/0.3818, allocations: 6.594 kB / 0.7753 GB, free: 3.805 MB / 0.6355 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.111e-06/0.3818, allocations: 1.281 kB / 0.7753 GB, free: 3.805 MB / 0.6355 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000288/0.382, allocations: 86.56 kB / 0.7754 GB, free: 3.785 MB / 0.6355 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003483/0.3824, allocations: 172.4 kB / 0.7756 GB, free: 3.766 MB / 0.6355 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0009633/0.3834, allocations: 1.506 MB / 0.777 GB, free: 2.387 MB / 0.6355 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003254/0.3837, allocations: 84.72 kB / 0.7771 GB, free: 2.348 MB / 0.6355 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.735e-05/0.3837, allocations: 41.89 kB / 0.7772 GB, free: 2.34 MB / 0.6355 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 17 (weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (100): * Single equations (assignments): 99 * 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 {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0002239/0.384, allocations: 277.5 kB / 0.7774 GB, free: 2.133 MB / 0.6355 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.166e-05/0.384, allocations: 90.5 kB / 0.7775 GB, free: 2.082 MB / 0.6355 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001312/0.3854, allocations: 1.075 MB / 0.7786 GB, free: 1.66 MB / 0.6355 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.833e-06/0.3854, allocations: 13.64 kB / 0.7786 GB, free: 1.656 MB / 0.6355 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.936e-06/0.3854, allocations: 5.25 kB / 0.7786 GB, free: 1.652 MB / 0.6355 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.804e-06/0.3854, allocations: 7.469 kB / 0.7786 GB, free: 1.648 MB / 0.6355 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001864/0.3872, allocations: 1.791 MB / 0.7803 GB, free: 0.8086 MB / 0.6355 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.526e-06/0.3872, allocations: 5.312 kB / 0.7803 GB, free: 0.8047 MB / 0.6355 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002924/0.3875, allocations: 152.3 kB / 0.7805 GB, free: 0.7891 MB / 0.6355 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001887/0.3877, allocations: 71.98 kB / 0.7806 GB, free: 0.7695 MB / 0.6355 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.491e-05/0.3878, allocations: 27.47 kB / 0.7806 GB, free: 0.7578 MB / 0.6355 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009176/0.3887, allocations: 1.527 MB / 0.7821 GB, free: 15.38 MB / 0.6511 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.443e-06/0.3887, allocations: 1.375 kB / 0.7821 GB, free: 15.38 MB / 0.6511 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001181/0.3899, allocations: 1.022 MB / 0.7831 GB, free: 14.9 MB / 0.6511 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002421/0.3901, allocations: 191.2 kB / 0.7833 GB, free: 14.8 MB / 0.6511 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.913e-05/0.3902, allocations: 21.62 kB / 0.7833 GB, free: 14.79 MB / 0.6511 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003123/0.3905, allocations: 66.02 kB / 0.7833 GB, free: 14.77 MB / 0.6511 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.475e-05/0.3906, allocations: 72.12 kB / 0.7834 GB, free: 14.76 MB / 0.6511 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.694e-05/0.3906, allocations: 37.89 kB / 0.7835 GB, free: 14.75 MB / 0.6511 GB Notification: Performance of sorting global known variables: time 0.0003232/0.391, allocations: 445 kB / 0.7839 GB, free: 14.55 MB / 0.6511 GB Notification: Performance of sort global known variables: time 3e-08/0.391, allocations: 0 / 0.7839 GB, free: 14.55 MB / 0.6511 GB Notification: Performance of remove unused functions: time 0.0005342/0.3915, allocations: 341.2 kB / 0.7842 GB, free: 14.46 MB / 0.6511 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 10 ($whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext) * Number of discrete states: 5 (weaDat.locTim.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,weaDat.conTimMin.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (95): * Single equations (assignments): 89 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 5 * 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 {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0009296/0.3924, allocations: 0.6476 MB / 0.7848 GB, free: 14.23 MB / 0.6511 GB Notification: Performance of simCode: created initialization part: time 0.000957/0.3934, allocations: 0.8261 MB / 0.7856 GB, free: 13.88 MB / 0.6511 GB Notification: Performance of simCode: created event and clocks part: time 2.304e-06/0.3934, allocations: 2.875 kB / 0.7856 GB, free: 13.88 MB / 0.6511 GB Notification: Performance of simCode: created simulation system equations: time 0.0004909/0.3939, allocations: 0.4904 MB / 0.7861 GB, free: 13.64 MB / 0.6511 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0006857/0.3946, allocations: 310 kB / 0.7864 GB, free: 13.56 MB / 0.6511 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001745/0.3963, allocations: 1.735 MB / 0.7881 GB, free: 12.64 MB / 0.6511 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002558/0.3966, allocations: 449.2 kB / 0.7885 GB, free: 12.51 MB / 0.6511 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001992/0.3968, allocations: 119 kB / 0.7887 GB, free: 12.49 MB / 0.6511 GB Notification: Performance of SimCode: time 4.91e-07/0.3968, allocations: 0 / 0.7887 GB, free: 12.49 MB / 0.6511 GB Notification: Performance of Templates: time 0.01316/0.4099, allocations: 19.41 MB / 0.8076 GB, free: 2.387 MB / 0.6511 GB " [Timeout remaining time 660] make -j1 -f IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody.makefile [Timeout 660] (rm -f IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody.pipe ; mkfifo IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody.pipe ; head -c 1048576 < IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody.pipe >> ../files/IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody.sim & ./IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.BoundaryConditions.SkyTemperature.Examples.BlackBody.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 6.925009516067803] Failed to read output from testmodel.py, exit status != 0: 0.41479492746293545 0.422227876 0.054110827 Calling exit ...