Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:11:57 2013

Optimize a model with 575 rows, 225 columns and 1800 nonzeros
Presolve removed 126 rows and 114 columns
Presolve time: 0.00s
Presolved: 449 rows, 111 columns, 1431 nonzeros
Variable types: 7 continuous, 104 integer (104 binary)
Found heuristic solution: objective 4460.0000000
Found heuristic solution: objective 4223.0000000

Root relaxation: objective 3.139658e+03, 11 iterations, 0.00 seconds

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

     0     0 3139.65789    0    6 4223.00000 3139.65789  25.7%     -    0s
     0     0 3141.00455    0   15 4223.00000 3141.00455  25.6%     -    0s
H    0     0                    3184.0000000 3141.00455  1.35%     -    0s
     0     0 3142.25863    0   20 3184.00000 3142.25863  1.31%     -    0s
H    0     0                    3179.0000000 3142.25863  1.16%     -    0s
H    0     0                    3159.0000000 3142.25863  0.53%     -    0s
H    0     0                    3149.0000000 3142.25863  0.21%     -    0s
     0     0 3142.48921    0   21 3149.00000 3142.48921  0.21%     -    0s
     0     0 3142.48921    0    5 3149.00000 3142.48921  0.21%     -    0s
     0     0 3143.20518    0   12 3149.00000 3143.20518  0.18%     -    0s
     0     0 3143.70011    0    8 3149.00000 3143.70011  0.17%     -    0s
     0     2 3144.75342    0    8 3149.00000 3144.75342  0.13%     -    0s
H    1     2                    3148.0000000 3144.75342  0.10%   3.0    0s

Explored 5 nodes (130 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.148000000000e+03, best bound 3.148000000000e+03, gap 0.0%