Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:00 2013

Optimize a model with 92 rows, 64 columns and 288 nonzeros
Presolve removed 31 rows and 31 columns
Presolve time: 0.00s
Presolved: 61 rows, 33 columns, 208 nonzeros
Variable types: 5 continuous, 28 integer (28 binary)
Found heuristic solution: objective 1021.0000000

Root relaxation: objective 6.644857e+02, 13 iterations, 0.00 seconds

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

     0     0  664.48571    0    5 1021.00000  664.48571  34.9%     -    0s
H    0     0                     675.0000000  664.48571  1.56%     -    0s
     0     0  664.65056    0    8  675.00000  664.65056  1.53%     -    0s
     0     0  671.50000    0    3  675.00000  671.50000  0.52%     -    0s
     0     0     cutoff    0       675.00000  674.00068  0.15%     -    0s

Explored 0 nodes (51 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.750000000000e+02, best bound 6.750000000000e+02, gap 0.0%