Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:27:01 2014

Optimize a model with 1276 rows, 651 columns and 3125 nonzeros
Presolve removed 25 rows and 0 columns
Presolve time: 0.03s
Presolved: 1251 rows, 651 columns, 3100 nonzeros
Variable types: 1 continuous, 650 integer (650 binary)
Found heuristic solution: objective 0.7971768
Found heuristic solution: objective 0.7945887
Found heuristic solution: objective 0.7706626

Root relaxation: objective 1.785295e-02, 795 iterations, 0.01 seconds

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

     0     0    0.01785    0  538    0.77066    0.01785  97.7%     -    0s
H    0     0                       0.6530859    0.01785  97.3%     -    0s
     0     0    0.02892    0  366    0.65309    0.02892  95.6%     -    0s
     0     0    0.25652    0  181    0.65309    0.25652  60.7%     -    0s
H    0     0                       0.6100923    0.25652  58.0%     -    0s
H    0     0                       0.5203302    0.25652  50.7%     -    0s
     0     0    0.26455    0  152    0.52033    0.26455  49.2%     -    0s
H    0     0                       0.5004519    0.26455  47.1%     -    0s
     0     0    0.26929    0  132    0.50045    0.26929  46.2%     -    0s
H    0     0                       0.4795389    0.26929  43.8%     -    0s
     0     1    0.27233    0  132    0.47954    0.27233  43.2%     -    0s
H    1     1                       0.4461579    0.27233  39.0%   211    0s
*    3     2              15       0.4349268    0.43493  0.00%  70.3    0s

Explored 3 nodes (4415 simplex iterations) in 0.80 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.349267583379e-01, best bound 4.349267583379e-01, gap 0.0%