Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:26:45 2014

Optimize a model with 484 rows, 463 columns and 1785 nonzeros
Presolve time: 0.01s
Presolved: 484 rows, 463 columns, 1785 nonzeros
Variable types: 1 continuous, 462 integer (462 binary)
Found heuristic solution: objective 0.7700507
Found heuristic solution: objective 0.7506366
Found heuristic solution: objective 0.6975225

Root relaxation: objective 2.353956e-01, 349 iterations, 0.01 seconds

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

     0     0    0.23540    0  144    0.69752    0.23540  66.3%     -    0s
H    0     0                       0.6593585    0.23540  64.3%     -    0s
H    0     0                       0.6565879    0.23540  64.1%     -    0s
     0     0    0.25819    0  143    0.65659    0.25819  60.7%     -    0s
H    0     0                       0.6193474    0.25819  58.3%     -    0s
H    0     0                       0.5182045    0.25819  50.2%     -    0s
     0     0    0.26172    0   90    0.51820    0.26172  49.5%     -    0s
     0     0    0.26172    0  147    0.51820    0.26172  49.5%     -    0s
H    0     0                       0.4895037    0.26172  46.5%     -    0s
     0     0    0.26172    0  110    0.48950    0.26172  46.5%     -    0s
H    0     0                       0.2881220    0.26172  9.16%     -    0s
     0     0     cutoff    0         0.28812    0.28812  0.00%     -    0s

Cutting planes:
  Gomory: 3
  MIR: 1

Explored 0 nodes (1565 simplex iterations) in 0.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.881219944826e-01, best bound 2.881219944826e-01, gap 0.0%