Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:19:35 2013

Optimize a model with 1350 rows, 400 columns and 4200 nonzeros
Presolve removed 316 rows and 209 columns
Presolve time: 0.01s
Presolved: 1034 rows, 191 columns, 3238 nonzeros
Variable types: 8 continuous, 183 integer (183 binary)
Found heuristic solution: objective 8993.0000000

Root relaxation: objective 7.526432e+03, 688 iterations, 0.01 seconds

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

     0     0 7526.43243    0    9 8993.00000 7526.43243  16.3%     -    0s
H    0     0                    7562.0000000 7526.43243  0.47%     -    0s
H    0     0                    7548.0000000 7526.43243  0.29%     -    0s
     0     0 7531.90386    0   15 7548.00000 7531.90386  0.21%     -    0s
     0     0 7531.90386    0    6 7548.00000 7531.90386  0.21%     -    0s
H    0     0                    7543.0000000 7531.90386  0.15%     -    0s
H    0     0                    7541.0000000 7531.90386  0.12%     -    0s
     0     0 7532.65087    0   11 7541.00000 7532.65087  0.11%     -    0s
     0     1 7534.53972    0   10 7541.00000 7534.53972  0.09%     -    0s
H    1     1                    7536.0000000 7534.53972  0.02%   7.0    0s

Explored 5 nodes (814 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.536000000000e+03, best bound 7.536000000000e+03, gap 0.0%