Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:08:12 2013

Optimize a model with 23616 rows, 23136 columns and 92256 nonzeros
Presolve removed 48 rows and 0 columns
Presolve time: 0.10s
Presolved: 23568 rows, 23136 columns, 92208 nonzeros
Variable types: 23088 continuous, 48 integer (48 binary)

Root relaxation: objective 4.084611e+04, 2941 iterations, 0.78 seconds

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

     0     0 40846.1096    0   33          - 40846.1096     -      -    0s
H    0     0                    51536.000000 40846.1096  20.7%     -    1s
     0     0 46532.9252    0    8 51536.0000 46532.9252  9.71%     -    2s
H    0     0                    51217.226318 46532.9252  9.15%     -    2s
H    0     0                    49049.000000 46532.9252  5.13%     -    2s
     0     0 47028.4308    0    4 49049.0000 47028.4308  4.12%     -    2s
H    0     0                    47891.000000 47028.4308  1.80%     -    2s
H    0     0                    47096.000000 47028.4308  0.14%     -    2s
     0     0 47050.2237    0    2 47096.0000 47050.2237  0.10%     -    2s
     0     0 47093.0000    0    1 47096.0000 47093.0000  0.01%     -    3s

Cutting planes:
  Gomory: 1
  Implied bound: 36

Explored 0 nodes (5268 simplex iterations) in 3.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.709600000000e+04, best bound 4.709300000000e+04, gap 0.0064%