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 3.9/3.9, allocations: 403.9 MB / 411 MB, free: 344 kB / 314.7 MB
Notification: Performance of FrontEnd - loaded program: time 2.198e-05/2.21e-05, allocations: 3.938 kB / 0.4942 GB, free: 1.387 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4786/0.4787, allocations: 92.69 MB / 0.5847 GB, free: 2.387 MB / 474.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.1793/0.658, allocations: 122.8 MB / 0.7046 GB, free: 7.402 MB / 0.5886 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002485/0.6583, allocations: 79.95 kB / 0.7047 GB, free: 7.324 MB / 0.5886 GB
Notification: Performance of FrontEnd - DAE generated: time 0.01607/0.6744, allocations: 3.867 MB / 0.7085 GB, free: 3.418 MB / 0.5886 GB
Notification: Performance of FrontEnd: time 1.743e-06/0.6744, allocations: 0 / 0.7085 GB, free: 3.418 MB / 0.5886 GB
Notification: Performance of Transformations before backend: time 1.348e-05/0.6744, allocations: 0 / 0.7085 GB, free: 3.418 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: 19
 * Number of variables: 19
Notification: Performance of Generate backend data structure: time 0.0007398/0.6752, allocations: 458 kB / 0.7089 GB, free: 2.926 MB / 0.5886 GB
Notification: Performance of prepare preOptimizeDAE: time 4.049e-05/0.6752, allocations: 8.031 kB / 0.7089 GB, free: 2.918 MB / 0.5886 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 6.121e-05/0.6753, allocations: 19.86 kB / 0.7089 GB, free: 2.898 MB / 0.5886 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002903/0.6756, allocations: 216.5 kB / 0.7091 GB, free: 2.648 MB / 0.5886 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.131e-05/0.6757, allocations: 4 kB / 0.7091 GB, free: 2.645 MB / 0.5886 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 4.463e-05/0.6757, allocations: 16 kB / 0.7092 GB, free: 2.629 MB / 0.5886 GB
Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.0001757/0.6759, allocations: 51.97 kB / 0.7092 GB, free: 2.578 MB / 0.5886 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0002647/0.6762, allocations: 131.8 kB / 0.7093 GB, free: 2.438 MB / 0.5886 GB
Notification: Performance of preOpt findStateOrder (simulation): time 9.685e-06/0.6762, allocations: 0 / 0.7093 GB, free: 2.438 MB / 0.5886 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.237e-05/0.6762, allocations: 3.984 kB / 0.7093 GB, free: 2.434 MB / 0.5886 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.902e-06/0.6762, allocations: 0 / 0.7093 GB, free: 2.434 MB / 0.5886 GB
Notification: Performance of preOpt removeSimpleEquations (simulation) <failed>: time 0.0001476/0.6764, allocations: 138.7 kB / 0.7095 GB, free: 2.273 MB / 0.5886 GB
Error: pre-optimization module removeSimpleEquations (simulation) failed.