Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:12:03 2013

Optimize a model with 26571 rows, 26061 columns and 104091 nonzeros
Presolve removed 1803 rows and 0 columns
Presolve time: 0.15s
Presolved: 24768 rows, 26061 columns, 100485 nonzeros
Variable types: 26010 continuous, 51 integer (51 binary)

Root relaxation: objective 5.151169e+04, 4337 iterations, 0.49 seconds

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

     0     0 51511.6919    0    4          - 51511.6919     -      -    0s
H    0     0                    52074.000000 51511.6919  1.08%     -    0s
H    0     0                    51626.000000 51511.6919  0.22%     -    0s
     0     0 51511.7971    0    5 51626.0000 51511.7971  0.22%     -    0s
     0     0 51511.7971    0    5 51626.0000 51511.7971  0.22%     -    1s
     0     0 51538.4561    0    3 51626.0000 51538.4561  0.17%     -    1s
     0     0 51539.0739    0    2 51626.0000 51539.0739  0.17%     -    1s
     0     0 51539.0739    0    1 51626.0000 51539.0739  0.17%     -    1s
     0     0 51539.0739    0    2 51626.0000 51539.0739  0.17%     -    1s
     0     2 51551.0000    0    2 51626.0000 51551.0000  0.15%     -    2s

Cutting planes:
  Gomory: 1

Explored 3 nodes (5473 simplex iterations) in 2.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.162600000000e+04, best bound 5.162600000000e+04, gap 0.0%