Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/package.mo", uses=false) Using package AixLib with version 1.3.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/package.mo) Using package SDF with version 0.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo) Using package Modelica_DeviceDrivers with version 2.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness") translateModel(AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001125/0.001125, allocations: 114.3 kB / 16.42 MB, free: 6.441 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001187/0.001187, allocations: 192 kB / 17.35 MB, free: 5.738 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.17/1.17, allocations: 222.9 MB / 241 MB, free: 15.17 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1-master/package.mo): time 0.05277/0.05277, allocations: 12.04 MB / 303.3 MB, free: 3.117 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo): time 0.0005054/0.0005051, allocations: 31.94 kB / 356.3 MB, free: 13.99 MB / 302.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6228:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6853:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:8435:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:9369:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:11505:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:12875:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/ThermalZones/HighOrder/Components/Examples/DryAir/DryAir_test.mo:71:18-71:405:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:2066:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:4252:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_RoofN_Roof_S.mo:5:35-5:362:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_Hor.mo:5:35-5:320:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_NE_SE_SW_NW_Hor.mo:5:35-5:324:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:588:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:3852:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/CHP/CHPDataSimple/CHP_Cleanergy_C9G.mo:36:34-36:594:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/BoundaryConditions/InternalGains/Examples/InternalGains/Machines.mo:31:20-31:400:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/BoundaryConditions/InternalGains/Examples/InternalGains/Lights.mo:27:20-27:398:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/package.mo): time 1.365/1.365, allocations: 268.2 MB / 0.6617 GB, free: 2.621 MB / 478.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001836/0.001836, allocations: 107.8 kB / 0.888 GB, free: 4.555 MB / 0.6544 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4313/0.4331, allocations: 108.4 MB / 0.9938 GB, free: 11.81 MB / 0.6857 GB Notification: Performance of NFInst.instantiate(AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness): time 0.004422/0.4376, allocations: 4.181 MB / 0.9979 GB, free: 8.523 MB / 0.6857 GB Notification: Performance of NFInst.instExpressions: time 0.1372/0.5748, allocations: 150.5 MB / 1.145 GB, free: 11.1 MB / 0.8263 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006572/0.5755, allocations: 19.88 kB / 1.145 GB, free: 11.08 MB / 0.8263 GB Notification: Performance of NFTyping.typeComponents: time 0.0004691/0.5759, allocations: 166.5 kB / 1.145 GB, free: 10.91 MB / 0.8263 GB Notification: Performance of NFTyping.typeBindings: time 0.001249/0.5772, allocations: 484.2 kB / 1.146 GB, free: 10.44 MB / 0.8263 GB Notification: Performance of NFTyping.typeClassSections: time 0.001609/0.5788, allocations: 0.8229 MB / 1.146 GB, free: 9.629 MB / 0.8263 GB Notification: Performance of NFFlatten.flatten: time 0.0009375/0.5798, allocations: 1.203 MB / 1.148 GB, free: 8.422 MB / 0.8263 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0007629/0.5806, allocations: 0.6942 MB / 1.148 GB, free: 7.715 MB / 0.8263 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0004333/0.581, allocations: 458.4 kB / 1.149 GB, free: 7.266 MB / 0.8263 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000423/0.5814, allocations: 497.7 kB / 1.149 GB, free: 6.777 MB / 0.8263 GB Notification: Performance of NFPackage.collectConstants: time 0.000136/0.5816, allocations: 112 kB / 1.149 GB, free: 6.668 MB / 0.8263 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0006894/0.5823, allocations: 499.6 kB / 1.15 GB, free: 6.18 MB / 0.8263 GB Notification: Performance of NFScalarize.scalarize: time 0.0002246/0.5825, allocations: 291.1 kB / 1.15 GB, free: 5.895 MB / 0.8263 GB Notification: Performance of NFVerifyModel.verify: time 0.0003752/0.5829, allocations: 0.5323 MB / 1.151 GB, free: 5.359 MB / 0.8263 GB Notification: Performance of NFConvertDAE.convert: time 0.001363/0.5843, allocations: 1.584 MB / 1.152 GB, free: 3.773 MB / 0.8263 GB Notification: Performance of FrontEnd - DAE generated: time 3.296e-06/0.5843, allocations: 4 kB / 1.152 GB, free: 3.77 MB / 0.8263 GB Notification: Performance of FrontEnd: time 1.103e-06/0.5843, allocations: 0 / 1.152 GB, free: 3.77 MB / 0.8263 GB Notification: Performance of Transformations before backend: time 9.277e-06/0.5843, allocations: 0 / 1.152 GB, free: 3.77 MB / 0.8263 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 228 * Number of variables: 228 Notification: Performance of Generate backend data structure: time 0.001863/0.5862, allocations: 1.385 MB / 1.153 GB, free: 2.328 MB / 0.8263 GB Notification: Performance of prepare preOptimizeDAE: time 2.977e-05/0.5862, allocations: 11.97 kB / 1.153 GB, free: 2.316 MB / 0.8263 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001005/0.5872, allocations: 211.3 kB / 1.154 GB, free: 2.109 MB / 0.8263 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009764/0.5882, allocations: 0.7456 MB / 1.154 GB, free: 1.324 MB / 0.8263 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.831e-05/0.5883, allocations: 66 kB / 1.154 GB, free: 1.258 MB / 0.8263 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000104/0.5884, allocations: 88 kB / 1.154 GB, free: 1.172 MB / 0.8263 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001441/0.5898, allocations: 0.9496 MB / 1.155 GB, free: 188 kB / 0.8263 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.659e-05/0.5898, allocations: 0 / 1.155 GB, free: 188 kB / 0.8263 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.962e-05/0.5899, allocations: 44 kB / 1.155 GB, free: 144 kB / 0.8263 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.484e-05/0.5899, allocations: 20 kB / 1.155 GB, free: 124 kB / 0.8263 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001664/0.5916, allocations: 1.128 MB / 1.157 GB, free: 14.99 MB / 0.8419 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003372/0.595, allocations: 2.534 MB / 1.159 GB, free: 12.39 MB / 0.8419 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001327/0.5963, allocations: 0.8175 MB / 1.16 GB, free: 11.54 MB / 0.8419 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004946/0.5968, allocations: 290.6 kB / 1.16 GB, free: 11.25 MB / 0.8419 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005569/0.5974, allocations: 470.2 kB / 1.161 GB, free: 10.7 MB / 0.8419 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006994/0.5981, allocations: 435.3 kB / 1.161 GB, free: 10.26 MB / 0.8419 GB Notification: Performance of pre-optimization done (n=73): time 1.974e-06/0.5981, allocations: 0 / 1.161 GB, free: 10.26 MB / 0.8419 GB Notification: Performance of matching and sorting (n=73): time 0.002658/0.6008, allocations: 1.096 MB / 1.162 GB, free: 9.133 MB / 0.8419 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.737e-05/0.6009, allocations: 188.6 kB / 1.162 GB, free: 8.906 MB / 0.8419 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005959/0.6015, allocations: 0.6057 MB / 1.163 GB, free: 8.293 MB / 0.8419 GB Notification: Performance of collectPreVariables (initialization): time 6.104e-05/0.6016, allocations: 37.7 kB / 1.163 GB, free: 8.25 MB / 0.8419 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002342/0.6018, allocations: 400.1 kB / 1.163 GB, free: 7.852 MB / 0.8419 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001578/0.602, allocations: 252.5 kB / 1.164 GB, free: 7.602 MB / 0.8419 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002001/0.6022, allocations: 154.4 kB / 1.164 GB, free: 7.441 MB / 0.8419 GB Notification: Performance of setup shared object (initialization): time 0.0001443/0.6023, allocations: 386.7 kB / 1.164 GB, free: 7.055 MB / 0.8419 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004634/0.6028, allocations: 241.9 kB / 1.164 GB, free: 6.82 MB / 0.8419 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005417/0.6033, allocations: 335.1 kB / 1.165 GB, free: 6.484 MB / 0.8419 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009974/0.6043, allocations: 0.5683 MB / 1.165 GB, free: 5.914 MB / 0.8419 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.546e-06/0.6044, allocations: 7.938 kB / 1.165 GB, free: 5.906 MB / 0.8419 GB Notification: Performance of matching and sorting (n=86) (initialization): time 0.001665/0.606, allocations: 0.7903 MB / 1.166 GB, free: 5.109 MB / 0.8419 GB Notification: Performance of prepare postOptimizeDAE: time 1.251e-05/0.606, allocations: 4 kB / 1.166 GB, free: 5.105 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.32e-06/0.6061, allocations: 0 / 1.166 GB, free: 5.105 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005338/0.6066, allocations: 84.81 kB / 1.166 GB, free: 5.02 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005781/0.6072, allocations: 147.8 kB / 1.166 GB, free: 4.875 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001793/0.609, allocations: 1.63 MB / 1.168 GB, free: 3.098 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005389/0.6095, allocations: 83.33 kB / 1.168 GB, free: 3.016 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.648e-05/0.6096, allocations: 36.05 kB / 1.168 GB, free: 2.98 MB / 0.8419 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 8 (weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,$whenCondition1,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (84): * 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: 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 0.0003016/0.6099, allocations: 261.6 kB / 1.168 GB, free: 2.715 MB / 0.8419 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001277/0.61, allocations: 75.06 kB / 1.168 GB, free: 2.641 MB / 0.8419 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002082/0.6121, allocations: 0.9902 MB / 1.169 GB, free: 1.633 MB / 0.8419 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.068e-05/0.6122, allocations: 8.016 kB / 1.169 GB, free: 1.625 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.527e-06/0.6122, allocations: 3.984 kB / 1.169 GB, free: 1.621 MB / 0.8419 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002978/0.6125, allocations: 263.7 kB / 1.169 GB, free: 1.344 MB / 0.8419 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001016/0.6126, allocations: 16 kB / 1.169 GB, free: 1.328 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005158/0.6131, allocations: 51.94 kB / 1.169 GB, free: 1.277 MB / 0.8419 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001064/0.6132, allocations: 68.91 kB / 1.17 GB, free: 1.211 MB / 0.8419 GB Notification: Performance of postOpt createDAEmodeBDAE (simulation): time 0.001753/0.615, allocations: 0.8772 MB / 1.17 GB, free: 328 kB / 0.8419 GB Notification: Performance of postOpt symbolicJacobianDAE (simulation): time 0.001935/0.6169, allocations: 1.297 MB / 1.172 GB, free: 15 MB / 0.8575 GB Notification: Performance of postOpt setEvaluationStage (simulation): time 0.0005385/0.6175, allocations: 331.8 kB / 1.172 GB, free: 14.68 MB / 0.8575 GB Notification: Performance of sorting global known variables: time 0.0004557/0.6179, allocations: 435 kB / 1.172 GB, free: 14.26 MB / 0.8575 GB Notification: Performance of Backend: time 5.51e-07/0.6179, allocations: 0 / 1.172 GB, free: 14.26 MB / 0.8575 GB Notification: Performance of simCode: created initialization part: time 0.002851/0.6208, allocations: 1.235 MB / 1.174 GB, free: 13.3 MB / 0.8575 GB Notification: Performance of SimCode: time 0.002387/0.6232, allocations: 2.027 MB / 1.176 GB, free: 11.24 MB / 0.8575 GB Notification: Performance of Templates: time 0.021/0.6442, allocations: 15.45 MB / 1.191 GB, free: 11.94 MB / 0.8732 GB make -j1 -f AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.makefile (rm -f AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.pipe ; mkfifo AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.pipe ; head -c 1048576 < AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.pipe >> ../files/AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.sim & ./AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness -abortSlowSimulation -alarm=480 -lv LOG_STATS > AixLib_AixLib.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.pipe 2>&1)