Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:43:50 2013

Optimize a model with 1400 rows, 105300 columns and 215400 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.23s
Presolved: 1300 rows, 105200 columns, 210300 nonzeros
Variable types: 105200 continuous, 0 integer (0 binary)

Root relaxation: objective 8.951303e+05, 9543 iterations, 0.78 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 895130.293    0    4          - 895130.293     -      -    1s
H    0     0                    911910.80873 895130.293  1.84%     -    2s
     0     2 895130.293    0    4 911910.809 895130.293  1.84%     -    2s
    21    23 904330.684   11    1 911910.809 895834.808  1.76%   187    5s
   124    90 897676.598   62    1 911910.809 896210.362  1.72%  68.4   10s
*  237   131             119    908546.17668 896210.362  1.36%  42.4   13s
*  259    61             130    902867.21611 896210.362  0.74%  39.2   13s
*  271    49             136    901485.03250 896210.362  0.59%  37.6   13s
*  338    14             169    898969.74016 896210.362  0.31%  30.4   14s
   340    16 896634.324    3    1 898969.740 896210.362  0.31%  31.3   15s
*  428     8              10    896949.94038 896546.546  0.04%  32.8   18s
*  439     4              12    896634.43616 896634.324  0.00%  33.5   19s

Explored 440 nodes (24258 simplex iterations) in 19.35 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.966344361626e+05, best bound 8.966343243635e+05, gap 0.0000%