Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:50:29 2013

Optimize a model with 41728 rows, 41088 columns and 163968 nonzeros
Presolve removed 64 rows and 0 columns
Presolve time: 0.18s
Presolved: 41664 rows, 41088 columns, 163904 nonzeros
Variable types: 41024 continuous, 64 integer (64 binary)

Root relaxation: objective 5.313662e+04, 5545 iterations, 2.68 seconds

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

     0     0 53136.6176    0   51          - 53136.6176     -      -    3s
H    0     0                    76215.000000 53136.6176  30.3%     -    4s
     0     0 63854.8460    0   13 76215.0000 63854.8460  16.2%     -    9s
H    0     0                    71649.000000 63854.8460  10.9%     -    9s
     0     0 65462.8444    0    7 71649.0000 65462.8444  8.63%     -   10s
H    0     0                    71263.000000 65462.8444  8.14%     -   10s
     0     0 65571.8702    0    6 71263.0000 65571.8702  7.99%     -   10s
H    0     0                    67587.826246 65571.8702  2.98%     -   10s
H    0     0                    66772.000000 65571.8702  1.80%     -   10s
H    0     0                    65845.000000 65571.8702  0.41%     -   10s
     0     0 65571.8702    0    6 65845.0000 65571.8702  0.41%     -   10s
     0     0 65589.2311    0    5 65845.0000 65589.2311  0.39%     -   11s
     0     2 65589.4851    0    5 65845.0000 65589.4851  0.39%     -   11s
*    5     3               4    65697.000000 65687.5194  0.01%   144   12s

Cutting planes:
  Implied bound: 62
  MIR: 2

Explored 9 nodes (11328 simplex iterations) in 12.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.569700000000e+04, best bound 6.569700000000e+04, gap 0.0%