Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD")
Notification: Performance of loadModel(Buildings): time 4.605/4.605, allocations: 458.9 MB / 473.4 MB, free: 11.8 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.036e-05/4.021e-05, allocations: 6.516 kB / 0.5697 GB, free: 9.785 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2703/0.2703, allocations: 106.2 MB / 0.6735 GB, free: 2.586 MB / 0.5417 GB
Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD): time 0.02526/0.2957, allocations: 14.17 MB / 0.6873 GB, free: 4.367 MB / 0.5573 GB
Notification: Performance of NFInst.instExpressions: time 0.0137/0.3094, allocations: 5.6 MB / 0.6928 GB, free: 14.75 MB / 0.573 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001723/0.3112, allocations: 55.81 kB / 0.6928 GB, free: 14.7 MB / 0.573 GB
Notification: Performance of NFTyping.typeComponents: time 0.001498/0.3127, allocations: 373.8 kB / 0.6932 GB, free: 14.33 MB / 0.573 GB
Notification: Performance of NFTyping.typeBindings: time 0.003525/0.3163, allocations: 0.7241 MB / 0.6939 GB, free: 13.61 MB / 0.573 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003199/0.3195, allocations: 0.7524 MB / 0.6946 GB, free: 12.85 MB / 0.573 GB
Notification: Performance of NFFlatten.flatten: time 0.004231/0.3238, allocations: 1.704 MB / 0.6963 GB, free: 11.14 MB / 0.573 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.01231/0.3362, allocations: 5.512 MB / 0.7017 GB, free: 5.582 MB / 0.573 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.002392/0.3386, allocations: 0.9312 MB / 0.7026 GB, free: 4.648 MB / 0.573 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.003575/0.3422, allocations: 1.411 MB / 0.704 GB, free: 3.234 MB / 0.573 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.002493/0.3448, allocations: 0.5735 MB / 0.7045 GB, free: 2.66 MB / 0.573 GB
Notification: Performance of NFPackage.collectConstants: time 0.001246/0.3461, allocations: 156 kB / 0.7047 GB, free: 2.508 MB / 0.573 GB
Notification: Performance of NFScalarize.scalarize: time 0.002816/0.3489, allocations: 1.477 MB / 0.7061 GB, free: 1.027 MB / 0.573 GB
Notification: Performance of NFVerifyModel.verify: time 0.001526/0.3505, allocations: 256 kB / 0.7064 GB, free: 0.7773 MB / 0.573 GB
Notification: Performance of NFConvertDAE.convert: time 0.00941/0.3599, allocations: 5.502 MB / 0.7117 GB, free: 11.26 MB / 0.5886 GB
Notification: Performance of FrontEnd - DAE generated: time 4.318e-06/0.36, allocations: 4 kB / 0.7117 GB, free: 11.26 MB / 0.5886 GB
Notification: Performance of FrontEnd: time 3.486e-06/0.36, allocations: 0 / 0.7117 GB, free: 11.26 MB / 0.5886 GB
Notification: Performance of Transformations before backend: time 0.000185/0.3602, allocations: 0 / 0.7117 GB, free: 11.26 MB / 0.5886 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 863
 * Number of variables: 863
Notification: Performance of Generate backend data structure: time 0.009846/0.3701, allocations: 2.687 MB / 0.7144 GB, free: 8.512 MB / 0.5886 GB
Notification: Performance of prepare preOptimizeDAE: time 5.542e-05/0.3701, allocations: 12.03 kB / 0.7144 GB, free: 8.5 MB / 0.5886 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02294/0.3931, allocations: 2.415 MB / 0.7167 GB, free: 6.078 MB / 0.5886 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00652/0.3996, allocations: 1.939 MB / 0.7186 GB, free: 4.09 MB / 0.5886 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002772/0.4, allocations: 230.1 kB / 0.7188 GB, free: 3.863 MB / 0.5886 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001379/0.4014, allocations: 300 kB / 0.7191 GB, free: 3.57 MB / 0.5886 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02203/0.4234, allocations: 6.351 MB / 0.7253 GB, free: 13.11 MB / 0.6042 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001023/0.4236, allocations: 4 kB / 0.7253 GB, free: 13.1 MB / 0.6042 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000779/0.4244, allocations: 132 kB / 0.7255 GB, free: 12.97 MB / 0.6042 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0008274/0.4252, allocations: 313.3 kB / 0.7258 GB, free: 12.66 MB / 0.6042 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02812/0.4533, allocations: 6.55 MB / 0.7322 GB, free: 6.098 MB / 0.6042 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0524/0.5058, allocations: 25.11 MB / 0.7567 GB, free: 10.86 MB / 0.6355 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01573/0.5216, allocations: 5.429 MB / 0.762 GB, free: 5.07 MB / 0.6355 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0005816/0.5222, allocations: 131 kB / 0.7621 GB, free: 4.926 MB / 0.6355 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.564e-05/0.5223, allocations: 72.45 kB / 0.7622 GB, free: 4.848 MB / 0.6355 GB
Notification: Performance of pre-optimization done (n=230): time 5.42e-06/0.5223, allocations: 0 / 0.7622 GB, free: 4.848 MB / 0.6355 GB
Notification: Performance of matching and sorting (n=311): time 0.197/0.7193, allocations: 31.03 MB / 0.7925 GB, free: 5.637 MB / 0.6667 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001591/0.7195, allocations: 247.8 kB / 0.7927 GB, free: 5.344 MB / 0.6667 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002601/0.7221, allocations: 1.099 MB / 0.7938 GB, free: 4.23 MB / 0.6667 GB
Notification: Performance of collectPreVariables (initialization): time 0.0007399/0.7229, allocations: 73.7 kB / 0.7938 GB, free: 4.152 MB / 0.6667 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001317/0.7243, allocations: 1.235 MB / 0.7951 GB, free: 2.895 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001925/0.7262, allocations: 1.044 MB / 0.7961 GB, free: 1.836 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005375/0.7268, allocations: 60 kB / 0.7961 GB, free: 1.777 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.0003804/0.7272, allocations: 440.7 kB / 0.7966 GB, free: 1.34 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.01153/0.7387, allocations: 2.735 MB / 0.7992 GB, free: 14.6 MB / 0.6823 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01234/0.7511, allocations: 3.408 MB / 0.8026 GB, free: 10.93 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01248/0.7637, allocations: 3.153 MB / 0.8056 GB, free: 7.758 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.704e-05/0.7637, allocations: 8 kB / 0.8056 GB, free: 7.75 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.6435/1.407, allocations: 10.44 MB / 0.8158 GB, free: 125.2 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.001794/1.409, allocations: 7.054 MB / 0.8227 GB, free: 117.9 MB / 0.6823 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.809e-05/1.409, allocations: 20.61 kB / 0.8227 GB, free: 117.9 MB / 0.6823 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03244/1.442, allocations: 5.255 MB / 0.8279 GB, free: 117.3 MB / 0.6823 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.008046/1.45, allocations: 0.9324 MB / 0.8288 GB, free: 117.2 MB / 0.6823 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04479/1.495, allocations: 17.38 MB / 0.8458 GB, free: 109.2 MB / 0.6823 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007116/1.502, allocations: 0.51 MB / 0.8463 GB, free: 109.1 MB / 0.6823 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009108/1.503, allocations: 141.6 kB / 0.8464 GB, free: 109.1 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 1.615e-05/1.503, allocations: 3.5 kB / 0.8464 GB, free: 109.1 MB / 0.6823 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.conv3.V2[2] = line2.v3_n[2] - line2.v1_n[2]
3 : transformer.conv2.V2[2] = line2.v2_n[2] - line2.v3_n[2]
[
  1.0 , 0.0 , -1.0 ;
  0.0 , -1.0 , 1.0 ;
  -1.0 , 1.0 , 0.0
]
  *
[
  line2.v2_n[2] ;
  line2.v3_n[2] ;
  line2.v1_n[2]
]
  =
[
  -transformer.conv1.V2[2] ;
  -transformer.conv3.V2[2] ;
  -transformer.conv2.V2[2]
]
 might be structurally or numerically singular for variable line2.v1_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.conv3.V2[1] = line2.v3_n[1] - line2.v1_n[1]
3 : transformer.conv2.V2[1] = line2.v2_n[1] - line2.v3_n[1]
[
  1.0 , 0.0 , -1.0 ;
  0.0 , -1.0 , 1.0 ;
  -1.0 , 1.0 , 0.0
]
  *
[
  line2.v2_n[1] ;
  line2.v3_n[1] ;
  line2.v1_n[1]
]
  =
[
  -transformer.conv1.V2[1] ;
  -transformer.conv3.V2[1] ;
  -transformer.conv2.V2[1]
]
 might be structurally or numerically singular for variable line2.v1_n[1] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.03637/1.539, allocations: 9.476 MB / 0.8557 GB, free: 104.5 MB / 0.6823 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.799e-05/1.539, allocations: 15.78 kB / 0.8557 GB, free: 104.5 MB / 0.6823 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01719/1.556, allocations: 3.153 MB / 0.8587 GB, free: 103 MB / 0.6823 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.009278/1.566, allocations: 1.099 MB / 0.8598 GB, free: 102.6 MB / 0.6823 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03966/1.606, allocations: 26.17 MB / 0.8854 GB, free: 77.83 MB / 0.6823 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006679/1.612, allocations: 0.4949 MB / 0.8859 GB, free: 77.34 MB / 0.6823 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007469/1.613, allocations: 139.9 kB / 0.886 GB, free: 77.2 MB / 0.6823 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 81
 * Number of states: 0 ()
 * Number of discrete variables: 0 ()
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (270):
 * Single equations (assignments): 268
 * 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 {(9,85.2%) 63}
 * Non-linear torn systems: 1 {9 63}
Notification: Performance of prepare postOptimizeDAE: time 0.003407/1.616, allocations: 1.326 MB / 0.8873 GB, free: 75.88 MB / 0.6823 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008022/1.617, allocations: 193.7 kB / 0.8875 GB, free: 75.68 MB / 0.6823 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.04336/1.661, allocations: 10.68 MB / 0.8979 GB, free: 64.93 MB / 0.6823 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.002e-05/1.661, allocations: 35.95 kB / 0.8979 GB, free: 64.89 MB / 0.6823 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 2.653e-05/1.661, allocations: 19.98 kB / 0.898 GB, free: 64.88 MB / 0.6823 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.542e-05/1.661, allocations: 11.95 kB / 0.898 GB, free: 64.86 MB / 0.6823 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.07931/1.74, allocations: 15.98 MB / 0.9136 GB, free: 48.7 MB / 0.6823 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.89e-05/1.74, allocations: 8 kB / 0.9136 GB, free: 48.7 MB / 0.6823 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.008062/1.748, allocations: 0.7376 MB / 0.9143 GB, free: 47.96 MB / 0.6823 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.03902/1.787, allocations: 5.042 MB / 0.9192 GB, free: 42.9 MB / 0.6823 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0008919/1.788, allocations: 75.95 kB / 0.9193 GB, free: 42.83 MB / 0.6823 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.09533/1.884, allocations: 26.01 MB / 0.9447 GB, free: 16.54 MB / 0.6823 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.716e-05/1.884, allocations: 16.03 kB / 0.9447 GB, free: 16.53 MB / 0.6823 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.05907/1.943, allocations: 10.41 MB / 0.9549 GB, free: 5.734 MB / 0.6823 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.003593/1.947, allocations: 0.7667 MB / 0.9556 GB, free: 4.949 MB / 0.6823 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00155/1.948, allocations: 71.88 kB / 0.9557 GB, free: 4.879 MB / 0.6823 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.009436/1.958, allocations: 499.2 kB / 0.9562 GB, free: 4.391 MB / 0.6823 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001843/1.96, allocations: 259 kB / 0.9564 GB, free: 4.133 MB / 0.6823 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0009388/1.961, allocations: 104 kB / 0.9565 GB, free: 4.031 MB / 0.6823 GB
Notification: Performance of sorting global known variables: time 0.002706/1.963, allocations: 0.8757 MB / 0.9574 GB, free: 3.148 MB / 0.6823 GB
Notification: Performance of sort global known variables: time 1.583e-06/1.963, allocations: 4 kB / 0.9574 GB, free: 3.145 MB / 0.6823 GB
Notification: Performance of remove unused functions: time 0.0131/1.977, allocations: 1.688 MB / 0.959 GB, free: 1.457 MB / 0.6823 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 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (166):
 * Single equations (assignments): 164
 * 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 {(9,86.4%) 63}
 * Non-linear torn systems: 1 {9 63}
Notification: Performance of Backend phase and start with SimCode phase: time 0.001423/1.978, allocations: 181.3 kB / 0.9592 GB, free: 1.277 MB / 0.6823 GB
Notification: Performance of simCode: created initialization part: time 0.0676/2.046, allocations: 11.99 MB / 0.9709 GB, free: 5.184 MB / 0.698 GB
Notification: Performance of simCode: created event and clocks part: time 1.893e-05/2.046, allocations: 0 / 0.9709 GB, free: 5.184 MB / 0.698 GB
Notification: Performance of simCode: created simulation system equations: time 0.02694/2.073, allocations: 4.503 MB / 0.9753 GB, free: 0.6523 MB / 0.698 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003428/2.076, allocations: 216.4 kB / 0.9755 GB, free: 452 kB / 0.698 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.07549/2.152, allocations: 11.67 MB / 0.9869 GB, free: 4.645 MB / 0.7136 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.005027/2.157, allocations: 2.694 MB / 0.9895 GB, free: 1.914 MB / 0.7136 GB
Notification: Performance of simCode: alias equations: time 0.01007/2.167, allocations: 1.77 MB / 0.9913 GB, free: 144 kB / 0.7136 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001251/2.168, allocations: 155.4 kB / 0.9914 GB, free: 15.98 MB / 0.7292 GB
Notification: Performance of SimCode: time 1.152e-06/2.168, allocations: 0 / 0.9914 GB, free: 15.98 MB / 0.7292 GB
Notification: Performance of Templates: time 0.1823/2.351, allocations: 71.16 MB / 1.061 GB, free: 8.992 MB / 0.7917 GB