Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:22:21 2013

Optimize a model with 3400 rows, 102200 columns and 208100 nonzeros
Presolve removed 400 rows and 300 columns
Presolve time: 0.42s
Presolved: 3000 rows, 101900 columns, 206500 nonzeros
Variable types: 101000 continuous, 900 integer (900 binary)

Root relaxation: objective 7.543716e+05, 8108 iterations, 0.74 seconds

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

     0     0 754371.571    0    4          - 754371.571     -      -    1s
H    0     0                    846215.37606 754371.571  10.9%     -    1s
     0     2 754390.859    0    4 846215.376 754390.859  10.9%     -    2s
    15    17 755065.398   15    2 846215.376 754504.147  10.8%  73.2    5s
H   27    26                    759977.59202 754504.147  0.72%  57.4    7s
H   34    11                    755679.58081 754504.147  0.16%  54.8    8s
    66     6 755486.254    4    1 755679.581 755197.770  0.06%  68.0   10s

Explored 88 nodes (13939 simplex iterations) in 11.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.556795808113e+05, best bound 7.556423392745e+05, gap 0.0049%