Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:31:26 2014

Optimize a model with 4852 rows, 2451 columns and 12005 nonzeros
Presolve removed 49 rows and 0 columns
Presolve time: 0.11s
Presolved: 4803 rows, 2451 columns, 11956 nonzeros
Variable types: 1 continuous, 2450 integer (2450 binary)
Found heuristic solution: objective 1.1110475
Found heuristic solution: objective 1.0726238
Found heuristic solution: objective 0.7656846

Root relaxation: objective 8.140715e-03, 3095 iterations, 0.12 seconds

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

     0     0    0.00814    0 1987    0.76568    0.00814  98.9%     -    0s
H    0     0                       0.4633891    0.00814  98.2%     -    0s
     0     0    0.01484    0 1040    0.46339    0.01484  96.8%     -    0s
     0     0    0.04299    0  560    0.46339    0.04299  90.7%     -    1s
H    0     0                       0.4342069    0.04299  90.1%     -    1s
H    0     0                       0.4197521    0.04299  89.8%     -    1s
     0     0    0.07238    0  463    0.41975    0.07238  82.8%     -    1s
H    0     0                       0.4084681    0.07238  82.3%     -    1s
     0     0    0.09355    0  404    0.40847    0.09355  77.1%     -    1s
     0     0    0.09888    0  394    0.40847    0.09888  75.8%     -    1s
H    0     0                       0.3912120    0.09888  74.7%     -    1s
     0     0    0.11841    0  404    0.39121    0.11841  69.7%     -    1s
H    0     0                       0.3586235    0.11841  67.0%     -    1s
     0     1    0.11841    0  404    0.35862    0.11841  67.0%     -    3s
H    1     1                       0.3409528    0.11841  65.3%   727    3s
H    3     2                       0.3316297    0.19965  39.8%   242    3s
H    4     2                       0.3125691    0.20396  34.7%   182    3s
H    5     3                       0.3055382    0.24096  21.1%   145    3s
H    5     3                       0.3022949    0.24096  20.3%   145    3s
H    5     2                       0.2965633    0.24096  18.7%   145    3s
H    8     4                       0.2836774    0.27288  3.81%   604    4s
H    8     4                       0.2759294    0.27288  1.10%   604    4s
*   11     6              30       0.2728804    0.27288  0.00%   454    4s

Explored 11 nodes (22703 simplex iterations) in 4.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.728804101342e-01, best bound 2.728804101342e-01, gap 0.0%