Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:29:37 2014

Optimize a model with 3742 rows, 1893 columns and 9245 nonzeros
Presolve removed 43 rows and 0 columns
Presolve time: 0.13s
Presolved: 3699 rows, 1893 columns, 9202 nonzeros
Variable types: 1 continuous, 1892 integer (1892 binary)
Found heuristic solution: objective 0.6669500
Found heuristic solution: objective 0.6596660
Found heuristic solution: objective 0.6114608

Root relaxation: objective 1.173955e-02, 2018 iterations, 0.07 seconds

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

     0     0    0.01174    0 1201    0.61146    0.01174  98.1%     -    0s
H    0     0                       0.5278922    0.01174  97.8%     -    0s
     0     0    0.01403    0 1002    0.52789    0.01403  97.3%     -    0s
     0     0    0.04313    0  608    0.52789    0.04313  91.8%     -    0s
H    0     0                       0.5157571    0.04313  91.6%     -    0s
H    0     0                       0.4797873    0.04313  91.0%     -    0s
     0     0    0.08311    0  419    0.47979    0.08311  82.7%     -    0s
H    0     0                       0.4532046    0.08311  81.7%     -    0s
H    0     0                       0.4313957    0.08311  80.7%     -    0s
     0     0    0.12108    0  392    0.43140    0.12108  71.9%     -    0s
H    0     0                       0.3513751    0.12108  65.5%     -    0s
     0     1    0.12108    0  392    0.35138    0.12108  65.5%     -    2s
H    4     2                       0.3365427    0.21390  36.4%   152    2s
H    5     3                       0.3158141    0.23229  26.4%   122    2s
H    6     4                       0.3083217    0.28771  6.69%   102    2s

Explored 7 nodes (13453 simplex iterations) in 2.87 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.083217019540e-01, best bound 3.083217019540e-01, gap 0.0%