Running command: translateModel(Buildings.Utilities.IO.Python27.Examples.KalmanFilter,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Utilities.IO.Python27.Examples.KalmanFilter")
Notification: Performance of loadModel(Buildings): time 3.6/3.6, allocations: 403.3 MB / 415.4 MB, free: 12.96 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 2.782e-05/2.803e-05, allocations: 0 / 0.499 GB, free: 13.46 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4928/0.4929, allocations: 92.69 MB / 0.5896 GB, free: 14.51 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.196/0.6889, allocations: 123.5 MB / 0.7102 GB, free: 2.863 MB / 0.5886 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003024/0.6893, allocations: 87.95 kB / 0.7102 GB, free: 2.777 MB / 0.5886 GB
Notification: Performance of FrontEnd - DAE generated: time 0.01706/0.7063, allocations: 3.883 MB / 0.714 GB, free: 14.86 MB / 0.6042 GB
Notification: Performance of FrontEnd: time 2.164e-06/0.7064, allocations: 0 / 0.714 GB, free: 14.86 MB / 0.6042 GB
Notification: Performance of Transformations before backend: time 1.902e-05/0.7064, allocations: 4 kB / 0.714 GB, free: 14.85 MB / 0.6042 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 19
 * Number of variables: 19
Notification: Performance of Generate backend data structure: time 0.000792/0.7072, allocations: 450 kB / 0.7145 GB, free: 14.37 MB / 0.6042 GB
Notification: Performance of prepare preOptimizeDAE: time 4.354e-05/0.7073, allocations: 12.03 kB / 0.7145 GB, free: 14.36 MB / 0.6042 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 6.351e-05/0.7074, allocations: 15.86 kB / 0.7145 GB, free: 14.34 MB / 0.6042 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003002/0.7077, allocations: 222.7 kB / 0.7147 GB, free: 14.08 MB / 0.6042 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.076e-05/0.7077, allocations: 11.98 kB / 0.7147 GB, free: 14.07 MB / 0.6042 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 5.011e-05/0.7078, allocations: 12 kB / 0.7147 GB, free: 14.06 MB / 0.6042 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003089/0.7081, allocations: 133.7 kB / 0.7148 GB, free: 13.92 MB / 0.6042 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.006e-05/0.7081, allocations: 3.938 kB / 0.7149 GB, free: 13.91 MB / 0.6042 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.353e-05/0.7082, allocations: 7.984 kB / 0.7149 GB, free: 13.91 MB / 0.6042 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.233e-05/0.7082, allocations: 4 kB / 0.7149 GB, free: 13.9 MB / 0.6042 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0001769/0.7084, allocations: 59.92 kB / 0.7149 GB, free: 13.84 MB / 0.6042 GB
Notification: Performance of preOpt removeSimpleEquations (simulation) <failed>: time 0.0001547/0.7085, allocations: 138.7 kB / 0.7151 GB, free: 13.68 MB / 0.6042 GB
Error: pre-optimization module removeSimpleEquations (simulation) failed.