Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:28:46 2014

Optimize a model with 1600 rows, 1561 columns and 6123 nonzeros
Presolve time: 0.03s
Presolved: 1600 rows, 1561 columns, 6123 nonzeros
Variable types: 1 continuous, 1560 integer (1560 binary)
Found heuristic solution: objective 1.0144347
Found heuristic solution: objective 0.8522032
Found heuristic solution: objective 0.8252999

Root relaxation: objective 2.096368e-01, 1007 iterations, 0.03 seconds

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

     0     0    0.20964    0  286    0.82530    0.20964  74.6%     -    0s
H    0     0                       0.3804245    0.20964  44.9%     -    0s
H    0     0                       0.3597605    0.20964  41.7%     -    0s
     0     0    0.22460    0  210    0.35976    0.22460  37.6%     -    0s
     0     0    0.22460    0  202    0.35976    0.22460  37.6%     -    0s
H    0     0                       0.3218430    0.22460  30.2%     -    0s
H    0     0                       0.3070525    0.22460  26.9%     -    0s
     0     0    0.28335    0   42    0.30705    0.28335  7.72%     -    0s
     0     1    0.30609    0   42    0.30705    0.30609  0.31%     -    0s
H    1     1                       0.3060868    0.30609  0.00%   227    0s

Explored 1 nodes (4911 simplex iterations) in 0.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.060868388445e-01, best bound 3.060868388445e-01, gap 0.0%