Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:26:42 2014

Optimize a model with 441 rows, 421 columns and 1620 nonzeros
Presolve time: 0.00s
Presolved: 441 rows, 421 columns, 1620 nonzeros
Variable types: 1 continuous, 420 integer (420 binary)
Found heuristic solution: objective 0.8042299
Found heuristic solution: objective 0.7254005
Found heuristic solution: objective 0.5271211

Root relaxation: objective 3.075801e-01, 427 iterations, 0.01 seconds

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

     0     0    0.30758    0   95    0.52712    0.30758  41.6%     -    0s
H    0     0                       0.4996937    0.30758  38.4%     -    0s
     0     0    0.39564    0   34    0.49969    0.39564  20.8%     -    0s
     0     0    0.39564    0   44    0.49969    0.39564  20.8%     -    0s
H    0     0                       0.4962426    0.39564  20.3%     -    0s
H    0     0                       0.4193691    0.39564  5.66%     -    0s

Explored 0 nodes (1893 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.193690513885e-01, best bound 4.193690513885e-01, gap 0.0%