Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:23:22 2013

Optimize a model with 3400 rows, 102200 columns and 208100 nonzeros
Presolve removed 400 rows and 300 columns
Presolve time: 0.44s
Presolved: 3000 rows, 101900 columns, 206500 nonzeros
Variable types: 101000 continuous, 900 integer (900 binary)

Root relaxation: objective 7.918217e+05, 8480 iterations, 0.89 seconds

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

     0     0 791821.709    0    2          - 791821.709     -      -    1s
H    0     0                    924415.35381 791821.709  14.3%     -    1s
H    0     0                    801517.93305 791821.709  1.21%     -    2s
     0     2 791843.973    0    2 801517.933 791843.973  1.21%     -    3s
H    2     2                    793756.08198 792576.606  0.15%   114    3s
H   14    11                    793505.77764 792621.172  0.11%  44.0    4s
    18    11 793497.647   16    1 793505.778 792621.172  0.11%  40.8    5s
*   56     7               4    793200.24980 792999.852  0.03%  53.8    7s

Explored 68 nodes (11905 simplex iterations) in 8.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.932002498024e+05, best bound 7.931854840699e+05, gap 0.0019%