Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:54:56 2013

Optimize a model with 43030 rows, 42380 columns and 169130 nonzeros
Presolve removed 65 rows and 0 columns
Presolve time: 0.19s
Presolved: 42965 rows, 42380 columns, 169065 nonzeros
Variable types: 42315 continuous, 65 integer (65 binary)

Root relaxation: objective 5.701786e+04, 5449 iterations, 3.10 seconds

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

     0     0 57017.8566    0   54          - 57017.8566     -      -    3s
H    0     0                    90174.000000 57017.8566  36.8%     -    5s
     0     0 72897.6122    0   10 90174.0000 72897.6122  19.2%     -   10s
H    0     0                    84688.748702 72897.6122  13.9%     -   10s
H    0     0                    79024.000000 72897.6122  7.75%     -   10s
     0     0 74398.7448    0    8 79024.0000 74398.7448  5.85%     -   11s
     0     0 74487.7303    0    2 79024.0000 74487.7303  5.74%     -   12s
H    0     0                    76973.902206 74487.7303  3.23%     -   12s
H    0     0                    76232.000000 74487.7303  2.29%     -   12s
H    0     0                    74754.000000 74487.7303  0.36%     -   12s
     0     2 74502.2680    0    2 74754.0000 74502.2680  0.34%     -   13s
*    7     3               5    74729.000000 74725.6689  0.00%   136   13s

Cutting planes:
  Implied bound: 63

Explored 8 nodes (12559 simplex iterations) in 13.60 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.472900000000e+04, best bound 7.472566889074e+04, gap 0.0045%