Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.852/1.852, allocations: 292.6 MB / 307.5 MB, free: 5.184 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001686/0.001686, allocations: 189 kB / 377.1 MB, free: 1.496 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.911/1.911, allocations: 205.4 MB / 0.6367 GB, free: 8.598 MB / 474.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001001/0.001002, allocations: 100 kB / 0.751 GB, free: 63.26 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0005147/0.0005153, allocations: 8 kB / 0.8748 GB, free: 11.15 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3472/0.3477, allocations: 116.3 MB / 0.9884 GB, free: 6.695 MB / 0.7136 GB Notification: Performance of FrontEnd - scodeFlatten: time 1.078/1.426, allocations: 200.7 MB / 1.184 GB, free: 13.74 MB / 0.7605 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004955/1.427, allocations: 118.7 kB / 1.185 GB, free: 13.62 MB / 0.7605 GB Notification: Performance of FrontEnd - DAE generated: time 0.3631/1.79, allocations: 144 MB / 1.325 GB, free: 12.29 MB / 0.9011 GB Notification: Performance of FrontEnd: time 3.176e-06/1.79, allocations: 0 / 1.325 GB, free: 12.29 MB / 0.9011 GB Notification: Performance of Transformations before backend: time 0.0001714/1.79, allocations: 71.98 kB / 1.325 GB, free: 12.22 MB / 0.9011 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 983 * Number of variables: 983 Notification: Performance of Generate backend data structure: time 0.01241/1.802, allocations: 3.108 MB / 1.328 GB, free: 9.051 MB / 0.9011 GB Notification: Performance of prepare preOptimizeDAE: time 6.397e-05/1.803, allocations: 12.03 kB / 1.328 GB, free: 9.039 MB / 0.9011 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01422/1.817, allocations: 2.125 MB / 1.33 GB, free: 6.91 MB / 0.9011 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.008466/1.825, allocations: 2.189 MB / 1.332 GB, free: 4.676 MB / 0.9011 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003167/1.826, allocations: 259.1 kB / 1.333 GB, free: 4.422 MB / 0.9011 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.00257/1.828, allocations: 347.9 kB / 1.333 GB, free: 4.082 MB / 0.9011 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0203/1.849, allocations: 6.475 MB / 1.339 GB, free: 13.5 MB / 0.9167 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.909e-05/1.849, allocations: 15.78 kB / 1.339 GB, free: 13.49 MB / 0.9167 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004998/1.849, allocations: 148 kB / 1.34 GB, free: 13.34 MB / 0.9167 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000606/1.85, allocations: 299 kB / 1.34 GB, free: 13.05 MB / 0.9167 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01874/1.869, allocations: 6.4 MB / 1.346 GB, free: 6.637 MB / 0.9167 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 0.8164/2.685, allocations: 26.66 MB / 1.372 GB, free: 184.8 MB / 0.9323 GB Notification: Performance of preOpt comSubExp (simulation): time 0.009516/2.695, allocations: 4.992 MB / 1.377 GB, free: 183.2 MB / 0.9323 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002923/2.695, allocations: 135.7 kB / 1.377 GB, free: 183.1 MB / 0.9323 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.987e-05/2.695, allocations: 62.28 kB / 1.377 GB, free: 183.1 MB / 0.9323 GB Notification: Performance of pre-optimization done (n=208): time 3.416e-06/2.695, allocations: 0 / 1.377 GB, free: 183.1 MB / 0.9323 GB Notification: Performance of matching and sorting (n=277): time 0.1145/2.81, allocations: 30.31 MB / 1.407 GB, free: 180 MB / 0.9323 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001375/2.81, allocations: 239.8 kB / 1.407 GB, free: 179.7 MB / 0.9323 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002756/2.813, allocations: 1.278 MB / 1.408 GB, free: 179.6 MB / 0.9323 GB Notification: Performance of collectPreVariables (initialization): time 0.0008015/2.813, allocations: 74.27 kB / 1.408 GB, free: 179.5 MB / 0.9323 GB Notification: Performance of collectInitialEqns (initialization): time 0.001068/2.814, allocations: 1.487 MB / 1.41 GB, free: 178.9 MB / 0.9323 GB Notification: Performance of collectInitialBindings (initialization): time 0.001147/2.816, allocations: 0.9361 MB / 1.411 GB, free: 178.4 MB / 0.9323 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002314/2.816, allocations: 69.61 kB / 1.411 GB, free: 178.4 MB / 0.9323 GB Notification: Performance of setup shared object (initialization): time 0.0002078/2.816, allocations: 444.1 kB / 1.411 GB, free: 178.1 MB / 0.9323 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005389/2.822, allocations: 2.612 MB / 1.414 GB, free: 178.1 MB / 0.9323 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006134/2.828, allocations: 3.513 MB / 1.417 GB, free: 177 MB / 0.9323 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00623/2.834, allocations: 3.072 MB / 1.42 GB, free: 177 MB / 0.9323 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.493e-05/2.834, allocations: 6.281 kB / 1.42 GB, free: 177 MB / 0.9323 GB Notification: Performance of matching and sorting (n=416) (initialization): time 0.02222/2.856, allocations: 9.209 MB / 1.429 GB, free: 176.7 MB / 0.9323 GB Notification: Performance of prepare postOptimizeDAE: time 0.003352/2.86, allocations: 10.62 MB / 1.44 GB, free: 165.5 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.412e-05/2.86, allocations: 27.19 kB / 1.44 GB, free: 165.5 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02836/2.888, allocations: 7.061 MB / 1.446 GB, free: 165.4 MB / 0.9323 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004753/2.893, allocations: 0.8665 MB / 1.447 GB, free: 165.4 MB / 0.9323 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02901/2.922, allocations: 15.36 MB / 1.462 GB, free: 163.3 MB / 0.9323 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005507/2.928, allocations: 0.5338 MB / 1.463 GB, free: 163.3 MB / 0.9323 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009657/2.929, allocations: 192.5 kB / 1.463 GB, free: 163.3 MB / 0.9323 GB Notification: Performance of prepare postOptimizeDAE: time 2.441e-05/2.929, allocations: 8 kB / 1.463 GB, free: 163.3 MB / 0.9323 GB Warning: The linear system: 1 : line2.i3[1] - transformer.conv2.terminal_p.i[1] = -transformer.conv3.terminal_p.i[1] 2 : line2.i2[1] - transformer.conv1.terminal_p.i[1] = -transformer.conv2.terminal_p.i[1] 3 : line2.i1[1] - transformer.conv3.terminal_p.i[1] = -transformer.conv1.terminal_p.i[1] [ 1.0 , 0.0 , -1.0 ; 0.0 , -1.0 , 1.0 ; -1.0 , 1.0 , 0.0 ] * [ transformer.conv3.terminal_p.i[1] ; transformer.conv1.terminal_p.i[1] ; transformer.conv2.terminal_p.i[1] ] = [ -line2.i3[1] ; -line2.i2[1] ; -line2.i1[1] ] might be structurally or numerically singular for variable transformer.conv2.terminal_p.i[1] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : line2.i3[2] - transformer.conv2.terminal_p.i[2] = -transformer.conv3.terminal_p.i[2] 2 : line2.i1[2] - transformer.conv3.terminal_p.i[2] = -transformer.conv1.terminal_p.i[2] 3 : line2.i2[2] - transformer.conv1.terminal_p.i[2] = -transformer.conv2.terminal_p.i[2] [ -1.0 , 0.0 , 1.0 ; 0.0 , 1.0 , -1.0 ; 1.0 , -1.0 , 0.0 ] * [ transformer.conv2.terminal_p.i[2] ; transformer.conv1.terminal_p.i[2] ; transformer.conv3.terminal_p.i[2] ] = [ -line2.i3[2] ; -line2.i1[2] ; -line2.i2[2] ] might be structurally or numerically singular for variable transformer.conv3.terminal_p.i[2] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : transformer.conv1.V2[2] = line2.v1_n[2] - line2.v2_n[2] 2 : transformer.conv2.V2[2] = line2.v2_n[2] - line2.v3_n[2] 3 : transformer.conv3.V2[2] = line2.v3_n[2] - line2.v1_n[2] [ -1.0 , 0.0 , 1.0 ; 0.0 , 1.0 , -1.0 ; 1.0 , -1.0 , 0.0 ] * [ line2.v1_n[2] ; line2.v3_n[2] ; line2.v2_n[2] ] = [ -transformer.conv1.V2[2] ; -transformer.conv2.V2[2] ; -transformer.conv3.V2[2] ] might be structurally or numerically singular for variable line2.v2_n[2] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : transformer.conv2.V2[1] = line2.v2_n[1] - line2.v3_n[1] 3 : transformer.conv3.V2[1] = line2.v3_n[1] - line2.v1_n[1] [ -1.0 , 0.0 , 1.0 ; 0.0 , 1.0 , -1.0 ; 1.0 , -1.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v3_n[1] ; line2.v2_n[1] ] = [ -transformer.conv1.V2[1] ; -transformer.conv2.V2[1] ; -transformer.conv3.V2[1] ] might be structurally or numerically singular for variable line2.v2_n[1] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02668/2.955, allocations: 9.364 MB / 1.472 GB, free: 162.3 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.000214/2.956, allocations: 30.75 kB / 1.472 GB, free: 162.3 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01633/2.972, allocations: 3.537 MB / 1.476 GB, free: 162.2 MB / 0.9323 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00653/2.979, allocations: 1.037 MB / 1.477 GB, free: 162.2 MB / 0.9323 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03892/3.018, allocations: 24.43 MB / 1.501 GB, free: 145.1 MB / 0.9323 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005526/3.023, allocations: 0.506 MB / 1.501 GB, free: 145 MB / 0.9323 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001406/3.025, allocations: 192.1 kB / 1.501 GB, free: 145 MB / 0.9323 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 122 * 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 (298): * Single equations (assignments): 296 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(10,74.0%) 50} * Non-linear torn systems: 1 {10 50} Notification: Performance of prepare postOptimizeDAE: time 0.006084/3.031, allocations: 1.583 MB / 1.503 GB, free: 144.3 MB / 0.9323 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001476/3.032, allocations: 197.1 kB / 1.503 GB, free: 144.2 MB / 0.9323 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02621/3.058, allocations: 8.546 MB / 1.511 GB, free: 141.7 MB / 0.9323 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.173e-05/3.059, allocations: 25.69 kB / 1.511 GB, free: 141.7 MB / 0.9323 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.491e-05/3.059, allocations: 14.94 kB / 1.511 GB, free: 141.7 MB / 0.9323 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001141/3.059, allocations: 18.23 kB / 1.511 GB, free: 141.7 MB / 0.9323 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03575/3.095, allocations: 14.38 MB / 1.525 GB, free: 136.6 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.949e-05/3.095, allocations: 11.98 kB / 1.525 GB, free: 136.6 MB / 0.9323 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003217/3.098, allocations: 0.6269 MB / 1.526 GB, free: 136.6 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.02678/3.125, allocations: 6.813 MB / 1.533 GB, free: 135.8 MB / 0.9323 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0009445/3.126, allocations: 94.23 kB / 1.533 GB, free: 135.8 MB / 0.9323 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02281/3.149, allocations: 14.99 MB / 1.547 GB, free: 129 MB / 0.9323 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.418e-05/3.149, allocations: 16.02 kB / 1.547 GB, free: 129 MB / 0.9323 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02079/3.169, allocations: 8.996 MB / 1.556 GB, free: 125.4 MB / 0.9323 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002624/3.172, allocations: 0.7582 MB / 1.557 GB, free: 125 MB / 0.9323 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001164/3.173, allocations: 55.81 kB / 1.557 GB, free: 125 MB / 0.9323 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004077/3.177, allocations: 493.2 kB / 1.557 GB, free: 125 MB / 0.9323 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009623/3.178, allocations: 214 kB / 1.558 GB, free: 124.9 MB / 0.9323 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0005924/3.179, allocations: 137.2 kB / 1.558 GB, free: 124.9 MB / 0.9323 GB Notification: Performance of sorting global known variables: time 0.002148/3.181, allocations: 0.9644 MB / 1.559 GB, free: 124.5 MB / 0.9323 GB Notification: Performance of sort global known variables: time 7.32e-07/3.181, allocations: 3.781 kB / 1.559 GB, free: 124.5 MB / 0.9323 GB Notification: Performance of remove unused functions: time 0.01029/3.191, allocations: 1.682 MB / 1.56 GB, free: 124.4 MB / 0.9323 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 34 * 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 (162): * Single equations (assignments): 160 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(10,73.0%) 50} * Non-linear torn systems: 1 {10 50} Notification: Performance of Backend phase and start with SimCode phase: time 0.000964/3.193, allocations: 200.1 kB / 1.561 GB, free: 124.2 MB / 0.9323 GB Notification: Performance of simCode: created initialization part: time 0.02737/3.22, allocations: 11.56 MB / 1.572 GB, free: 120.4 MB / 0.9323 GB Notification: Performance of simCode: created event and clocks part: time 1.838e-05/3.22, allocations: 0 / 1.572 GB, free: 120.4 MB / 0.9323 GB Notification: Performance of simCode: created simulation system equations: time 0.00964/3.23, allocations: 3.866 MB / 1.576 GB, free: 119.2 MB / 0.9323 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002453/3.232, allocations: 208.2 kB / 1.576 GB, free: 119.1 MB / 0.9323 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02834/3.261, allocations: 10.75 MB / 1.586 GB, free: 114.5 MB / 0.9323 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.005197/3.266, allocations: 2.844 MB / 1.589 GB, free: 113.4 MB / 0.9323 GB Notification: Performance of simCode: alias equations: time 0.005204/3.271, allocations: 1.66 MB / 1.591 GB, free: 112.5 MB / 0.9323 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006166/3.272, allocations: 163.5 kB / 1.591 GB, free: 112.3 MB / 0.9323 GB Notification: Performance of SimCode: time 1.492e-06/3.272, allocations: 0 / 1.591 GB, free: 112.3 MB / 0.9323 GB Notification: Performance of Templates: time 0.09748/3.369, allocations: 62.08 MB / 1.652 GB, free: 58.73 MB / 0.9323 GB make -j1 -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.makefile (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.sim & ./Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe 2>&1)