Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:01:02 2013

Optimize a model with 18144 rows, 17724 columns and 70644 nonzeros
Presolve removed 42 rows and 0 columns
Presolve time: 0.08s
Presolved: 18102 rows, 17724 columns, 70602 nonzeros
Variable types: 17682 continuous, 42 integer (42 binary)

Root relaxation: objective 4.099013e+04, 2570 iterations, 0.64 seconds

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

     0     0 40990.1311    0   33          - 40990.1311     -      -    0s
H    0     0                    50448.000000 40990.1311  18.7%     -    1s
     0     0 45733.0942    0    5 50448.0000 45733.0942  9.35%     -    1s
H    0     0                    47673.164929 45733.0942  4.07%     -    1s
H    0     0                    46570.000000 45733.0942  1.80%     -    1s
     0     0 45987.0690    0    2 46570.0000 45987.0690  1.25%     -    1s
H    0     0                    46563.000000 45987.0690  1.24%     -    1s
H    0     0                    46057.000000 45987.0690  0.15%     -    2s
     0     0 46007.1111    0    2 46057.0000 46007.1111  0.11%     -    2s
     0     0 46007.1111    0    2 46057.0000 46007.1111  0.11%     -    2s
     0     2 46015.2414    0    2 46057.0000 46015.2414  0.09%     -    2s

Cutting planes:
  Implied bound: 31

Explored 3 nodes (4251 simplex iterations) in 2.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.605700000000e+04, best bound 4.605700000000e+04, gap 0.0%