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 124 rows and 112 columns
Presolve time: 0.00s
Presolved: 451 rows, 113 columns, 1461 nonzeros
Variable types: 9 continuous, 104 integer (104 binary)
Found heuristic solution: objective 4092.0000000

Root relaxation: objective 3.217509e+03, 25 iterations, 0.00 seconds

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

     0     0 3217.50936    0    6 4092.00000 3217.50936  21.4%     -    0s
     0     0 3222.34077    0   16 4092.00000 3222.34077  21.3%     -    0s
H    0     0                    3265.0000000 3222.34077  1.31%     -    0s
     0     0 3224.00962    0   12 3265.00000 3224.00962  1.26%     -    0s
H    0     0                    3239.0000000 3224.00962  0.46%     -    0s
H    0     0                    3232.0000000 3224.00962  0.25%     -    0s
     0     0 3225.00605    0   14 3232.00000 3225.00605  0.22%     -    0s
     0     0 3225.00605    0    6 3232.00000 3225.00605  0.22%     -    0s
H    0     0                    3230.0000000 3225.00605  0.15%     -    0s
     0     0 3225.00605    0   15 3230.00000 3225.00605  0.15%     -    0s
     0     0 3225.41034    0   10 3230.00000 3225.41034  0.14%     -    0s
     0     0 3225.50000    0    7 3230.00000 3225.50000  0.14%     -    0s
     0     0 3227.15830    0   13 3230.00000 3227.15830  0.09%     -    0s
     0     0 3228.25940    0    5 3230.00000 3228.25940  0.05%     -    0s

Cutting planes:
  MIR: 5

Explored 0 nodes (181 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.230000000000e+03, best bound 3.230000000000e+03, gap 0.0%