Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:21:37 2013

Optimize a model with 3400 rows, 102200 columns and 208100 nonzeros
Presolve removed 400 rows and 300 columns
Presolve time: 0.45s
Presolved: 3000 rows, 101900 columns, 206500 nonzeros
Variable types: 101000 continuous, 900 integer (900 binary)

Root relaxation: objective 8.654105e+05, 10004 iterations, 1.29 seconds

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

     0     0 865410.545    0    2          - 865410.545     -      -    1s
H    0     0                    928918.38371 865410.545  6.84%     -    2s
     0     2 865459.185    0    2 928918.384 865459.185  6.83%     -    3s
    10    12 866840.476    9    1 928918.384 866168.608  6.76%   123    5s
H   27    13                    868201.62508 866168.608  0.23%  70.3    7s
H   31    14                    867737.87788 866168.608  0.18%  64.5    8s
H   44    10                    866849.82663 866563.837  0.03%  67.4    9s

Explored 56 nodes (13321 simplex iterations) in 9.75 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.668498266279e+05, best bound 8.667706496003e+05, gap 0.0091%