Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildSysPro_BuildSysPro.Systems.HVAC.Emission.ElectricHeater.JouleHeatingPIControlled.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/BuildSysPro 3.6.0/package.mo", uses=false) Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/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: "" <> buildModelFMU(BuildSysPro.Systems.HVAC.Emission.ElectricHeater.JouleHeatingPIControlled,fileNamePrefix="BuildSysPro_BuildSysPro_Systems_HVAC_Emission_ElectricHeater_JouleHeatingPIControlled",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildSysPro.Systems.HVAC.Emission.ElectricHeater.JouleHeatingPIControlled,fileNamePrefix="BuildSysPro_BuildSysPro_Systems_HVAC_Emission_ElectricHeater_JouleHeatingPIControlled",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0006975/0.0006976, allocations: 98.27 kB / 15.36 MB, free: 0.7344 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.003943/0.003943, allocations: 169 kB / 16.26 MB, free: 6.652 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.166/1.166, allocations: 223.3 MB / 240.3 MB, free: 5.336 MB / 190.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/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 3.6.0/package.mo): time 0.8569/0.8569, allocations: 143.2 MB / 434.6 MB, free: 13.62 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0002703/0.0002703, allocations: 8 kB / 0.5165 GB, free: 11.04 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.122/0.1223, allocations: 83.41 MB / 0.598 GB, free: 7.586 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(BuildSysPro.Systems.HVAC.Emission.ElectricHeater.JouleHeatingPIControlled): time 0.001898/0.1242, allocations: 1.9 MB / 0.5998 GB, free: 5.668 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.0009335/0.1251, allocations: 0.7092 MB / 0.6005 GB, free: 4.953 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001148/0.1253, allocations: 7.938 kB / 0.6005 GB, free: 4.945 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.0001177/0.1254, allocations: 31.72 kB / 0.6005 GB, free: 4.914 MB / 0.4981 GB Notification: Performance of NFTyping.typeBindings: time 9.482e-05/0.1255, allocations: 31.72 kB / 0.6006 GB, free: 4.883 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.0003117/0.1258, allocations: 142.3 kB / 0.6007 GB, free: 4.746 MB / 0.4981 GB Notification: Performance of NFFlatten.flatten: time 0.0002261/0.126, allocations: 259.8 kB / 0.601 GB, free: 4.488 MB / 0.4981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001759/0.1262, allocations: 112.9 kB / 0.6011 GB, free: 4.379 MB / 0.4981 GB Notification: Performance of NFEvalConstants.evaluate: time 6.961e-05/0.1263, allocations: 67.53 kB / 0.6011 GB, free: 4.312 MB / 0.4981 GB Notification: Performance of NFSimplifyModel.simplify: time 8.734e-05/0.1264, allocations: 67.45 kB / 0.6012 GB, free: 4.246 MB / 0.4981 GB Notification: Performance of NFPackage.collectConstants: time 2.043e-05/0.1264, allocations: 11.94 kB / 0.6012 GB, free: 4.234 MB / 0.4981 GB Notification: Performance of NFFlatten.collectFunctions: time 1.622e-05/0.1264, allocations: 4 kB / 0.6012 GB, free: 4.23 MB / 0.4981 GB Notification: Performance of NFScalarize.scalarize: time 2.761e-05/0.1265, allocations: 31.78 kB / 0.6012 GB, free: 4.199 MB / 0.4981 GB Notification: Performance of NFVerifyModel.verify: time 6.872e-05/0.1265, allocations: 113 kB / 0.6013 GB, free: 4.082 MB / 0.4981 GB Notification: Performance of NFConvertDAE.convert: time 0.0001753/0.1267, allocations: 227.3 kB / 0.6016 GB, free: 3.859 MB / 0.4981 GB Notification: Performance of FrontEnd - DAE generated: time 2.815e-06/0.1267, allocations: 4 kB / 0.6016 GB, free: 3.855 MB / 0.4981 GB Notification: Performance of FrontEnd: time 1.192e-06/0.1267, allocations: 0 / 0.6016 GB, free: 3.855 MB / 0.4981 GB Notification: Performance of Transformations before backend: time 3.878e-06/0.1268, allocations: 0 / 0.6016 GB, free: 3.855 MB / 0.4981 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 41 * Number of variables: 41 Notification: Performance of Generate backend data structure: time 0.000551/0.1273, allocations: 0.514 MB / 0.6021 GB, free: 3.293 MB / 0.4981 GB Notification: Performance of prepare preOptimizeDAE: time 3.211e-05/0.1273, allocations: 16.03 kB / 0.6021 GB, free: 3.277 MB / 0.4981 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 6.109e-05/0.1274, allocations: 46.73 kB / 0.6021 GB, free: 3.223 MB / 0.4981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 4.713e-05/0.1275, allocations: 32.56 kB / 0.6022 GB, free: 3.191 MB / 0.4981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002483/0.1277, allocations: 287.4 kB / 0.6024 GB, free: 2.871 MB / 0.4981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.411e-05/0.1277, allocations: 12.38 kB / 0.6024 GB, free: 2.859 MB / 0.4981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 2.728e-05/0.1278, allocations: 16.38 kB / 0.6025 GB, free: 2.844 MB / 0.4981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003227/0.1281, allocations: 222.2 kB / 0.6027 GB, free: 2.609 MB / 0.4981 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.482e-06/0.1281, allocations: 0 / 0.6027 GB, free: 2.609 MB / 0.4981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.817e-05/0.1281, allocations: 8 kB / 0.6027 GB, free: 2.602 MB / 0.4981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.76e-06/0.1281, allocations: 4 kB / 0.6027 GB, free: 2.598 MB / 0.4981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002631/0.1284, allocations: 144.8 kB / 0.6028 GB, free: 2.457 MB / 0.4981 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0008438/0.1293, allocations: 0.7832 MB / 0.6036 GB, free: 1.613 MB / 0.4981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0003355/0.1296, allocations: 182.6 kB / 0.6038 GB, free: 1.426 MB / 0.4981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001222/0.1297, allocations: 68.81 kB / 0.6038 GB, free: 1.355 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 1.681e-05/0.1298, allocations: 8 kB / 0.6038 GB, free: 1.348 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.151e-05/0.1298, allocations: 42.56 kB / 0.6039 GB, free: 1.297 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=14): time 1.132e-06/0.1298, allocations: 0 / 0.6039 GB, free: 1.297 MB / 0.4981 GB Notification: Performance of matching and sorting (n=14): time 0.0004268/0.1302, allocations: 219.5 kB / 0.6041 GB, free: 1.078 MB / 0.4981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.633e-05/0.1303, allocations: 77.11 kB / 0.6042 GB, free: 0.9844 MB / 0.4981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001938/0.1305, allocations: 250.7 kB / 0.6044 GB, free: 0.7383 MB / 0.4981 GB Notification: Performance of collectPreVariables (initialization): time 1.831e-05/0.1305, allocations: 33.7 kB / 0.6044 GB, free: 0.6992 MB / 0.4981 GB Notification: Performance of collectInitialEqns (initialization): time 8.124e-05/0.1306, allocations: 160.2 kB / 0.6046 GB, free: 0.5391 MB / 0.4981 GB Notification: Performance of collectInitialBindings (initialization): time 3.66e-05/0.1306, allocations: 55.52 kB / 0.6046 GB, free: 496 kB / 0.4981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.962e-05/0.1307, allocations: 21.7 kB / 0.6046 GB, free: 468 kB / 0.4981 GB Notification: Performance of setup shared object (initialization): time 8.921e-05/0.1308, allocations: 338.8 kB / 0.605 GB, free: 120 kB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001121/0.1309, allocations: 55.89 kB / 0.605 GB, free: 64 kB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.2167/0.3476, allocations: 83.52 kB / 0.6051 GB, free: 40.78 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0007084/0.3484, allocations: 249.1 kB / 0.6053 GB, free: 40.75 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.615e-06/0.3484, allocations: 3.188 kB / 0.6053 GB, free: 40.75 MB / 0.4981 GB Notification: Performance of matching and sorting (n=18) (initialization): time 0.0003465/0.3487, allocations: 191.2 kB / 0.6055 GB, free: 40.71 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 3.938e-05/0.3488, allocations: 119.5 kB / 0.6056 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.582e-06/0.3488, allocations: 2.469 kB / 0.6056 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.239e-05/0.3488, allocations: 9.094 kB / 0.6057 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001549/0.349, allocations: 31.72 kB / 0.6057 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.071e-06/0.349, allocations: 2.969 kB / 0.6057 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001135/0.3491, allocations: 23.36 kB / 0.6057 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.156e-05/0.3491, allocations: 5.969 kB / 0.6057 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 4.368e-06/0.3491, allocations: 6.594 kB / 0.6057 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0001512/0.3493, allocations: 119.7 kB / 0.6058 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.372e-06/0.3493, allocations: 3.5 kB / 0.6058 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.934e-06/0.3493, allocations: 0 / 0.6058 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 9.689e-05/0.3494, allocations: 30.12 kB / 0.6059 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.825e-06/0.3494, allocations: 3.531 kB / 0.6059 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 7.742e-05/0.3495, allocations: 14.16 kB / 0.6059 GB, free: 40.6 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.514e-06/0.3495, allocations: 9.469 kB / 0.6059 GB, free: 40.6 MB / 0.4981 GB Warning: Assuming fixed start value for the following 2 variables: PI1.I.y:VARIABLE(flow=false start = PI1.I.y_start fixed = true protected = true ) "Connector of Real output signal" type: Real firstOrder.y:VARIABLE(flow=false start = firstOrder.y_start fixed = true protected = true ) "Connector of Real output signal" type: Real Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 1 (PI1.I.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (18): * Single equations (assignments): 18 * 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 0.0001749/0.3497, allocations: 218.3 kB / 0.6061 GB, free: 40.41 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 3.795e-05/0.3497, allocations: 22.69 kB / 0.6061 GB, free: 40.41 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 5.417e-05/0.3498, allocations: 30.75 kB / 0.6062 GB, free: 40.41 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.256e-06/0.3498, allocations: 2.938 kB / 0.6062 GB, free: 40.41 MB / 0.4981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.867e-06/0.3498, allocations: 0 / 0.6062 GB, free: 40.41 MB / 0.4981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.086e-06/0.3498, allocations: 0 / 0.6062 GB, free: 40.41 MB / 0.4981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004744/0.3503, allocations: 0.5202 MB / 0.6067 GB, free: 40.11 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.503e-06/0.3503, allocations: 3.094 kB / 0.6067 GB, free: 40.11 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001365/0.3505, allocations: 26.94 kB / 0.6067 GB, free: 40.11 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.814e-06/0.3505, allocations: 0 / 0.6067 GB, free: 40.11 MB / 0.4981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.171e-05/0.3505, allocations: 3.312 kB / 0.6067 GB, free: 40.11 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.044e-06/0.3505, allocations: 2.656 kB / 0.6067 GB, free: 40.11 MB / 0.4981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.72e-07/0.3505, allocations: 0 / 0.6067 GB, free: 40.11 MB / 0.4981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0003829/0.3509, allocations: 347.8 kB / 0.607 GB, free: 39.98 MB / 0.4981 GB Notification: Performance of postOpt removeConstants (simulation): time 5.732e-05/0.351, allocations: 115.9 kB / 0.6071 GB, free: 39.88 MB / 0.4981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.624e-05/0.351, allocations: 0.5 kB / 0.6071 GB, free: 39.88 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001199/0.3511, allocations: 17.8 kB / 0.6072 GB, free: 39.88 MB / 0.4981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 1.769e-05/0.3511, allocations: 6.016 kB / 0.6072 GB, free: 39.88 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.825e-06/0.3511, allocations: 7.281 kB / 0.6072 GB, free: 39.88 MB / 0.4981 GB Notification: Performance of sorting global known variables: time 0.0001098/0.3513, allocations: 178.8 kB / 0.6073 GB, free: 39.8 MB / 0.4981 GB Notification: Performance of sort global known variables: time 1.11e-07/0.3513, allocations: 0 / 0.6073 GB, free: 39.8 MB / 0.4981 GB Notification: Performance of remove unused functions: time 0.0003179/0.3516, allocations: 68.33 kB / 0.6074 GB, free: 39.8 MB / 0.4981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 2 (PI1.I.y,firstOrder.y) * 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 (14): * Single equations (assignments): 14 * 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 0.0004919/0.3521, allocations: 0.8868 MB / 0.6083 GB, free: 39.13 MB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.0003212/0.3524, allocations: 198.1 kB / 0.6085 GB, free: 39.13 MB / 0.4981 GB Notification: Performance of simCode: created event and clocks part: time 1.913e-06/0.3524, allocations: 2.406 kB / 0.6085 GB, free: 39.13 MB / 0.4981 GB Notification: Performance of simCode: created simulation system equations: time 0.0001018/0.3525, allocations: 64.69 kB / 0.6085 GB, free: 39.13 MB / 0.4981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004241/0.353, allocations: 64.41 kB / 0.6086 GB, free: 39.13 MB / 0.4981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002048/0.355, allocations: 2.391 MB / 0.6109 GB, free: 37.66 MB / 0.4981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001183/0.3552, allocations: 0.7494 MB / 0.6117 GB, free: 36.96 MB / 0.4981 GB Notification: Performance of simCode: alias equations: time 0.0001039/0.3553, allocations: 32.75 kB / 0.6117 GB, free: 36.96 MB / 0.4981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 9.698e-05/0.3554, allocations: 78.84 kB / 0.6118 GB, free: 36.95 MB / 0.4981 GB Notification: Performance of SimCode: time 3.71e-07/0.3554, allocations: 0 / 0.6118 GB, free: 36.95 MB / 0.4981 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.01232/0.3677, allocations: 4.087 MB / 0.6158 GB, free: 36.75 MB / 0.4981 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001411/0.3679, allocations: 237.2 kB / 0.616 GB, free: 36.5 MB / 0.4981 GB Notification: Performance of buildModelFMU: Generate platform static: time 1.577/1.945, allocations: 0.9375 kB / 0.616 GB, free: 36.5 MB / 0.4981 GB (rm -f BuildSysPro_BuildSysPro.Systems.HVAC.Emission.ElectricHeater.JouleHeatingPIControlled.pipe ; mkfifo BuildSysPro_BuildSysPro.Systems.HVAC.Emission.ElectricHeater.JouleHeatingPIControlled.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.Systems.HVAC.Emission.ElectricHeater.JouleHeatingPIControlled.pipe >> ../files/BuildSysPro_BuildSysPro.Systems.HVAC.Emission.ElectricHeater.JouleHeatingPIControlled.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_BuildSysPro_BuildSysPro_Systems_HVAC_Emission_ElectricHeater_JouleHeatingPIControlled_fmu --startTime=0 --stopTime=0.1 --timeout=50 --tolerance=1e-06 BuildSysPro_BuildSysPro_Systems_HVAC_Emission_ElectricHeater_JouleHeatingPIControlled.fmu > BuildSysPro_BuildSysPro.Systems.HVAC.Emission.ElectricHeater.JouleHeatingPIControlled.pipe 2>&1)