Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:12:43 2013

Optimize a model with 26622 rows, 26112 columns and 104142 nonzeros
Presolve removed 51 rows and 0 columns
Presolve time: 0.12s
Presolved: 26571 rows, 26112 columns, 104091 nonzeros
Variable types: 26061 continuous, 51 integer (51 binary)

Root relaxation: objective 4.436236e+04, 3169 iterations, 0.72 seconds

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

     0     0 44362.3610    0   45          - 44362.3610     -      -    0s
H    0     0                    60070.000000 44362.3610  26.1%     -    1s
     0     0 50881.6177    0    7 60070.0000 50881.6177  15.3%     -    3s
H    0     0                    54794.627662 50881.6177  7.14%     -    3s
H    0     0                    53083.000000 50881.6177  4.15%     -    3s
     0     0 51368.0090    0    4 53083.0000 51368.0090  3.23%     -    3s
H    0     0                    53057.000000 51368.0090  3.18%     -    3s
H    0     0                    51604.000000 51368.0090  0.46%     -    3s
     0     0 51444.8045    0    4 51604.0000 51444.8045  0.31%     -    3s
     0     0 51520.4715    0    3 51604.0000 51520.4715  0.16%     -    3s
     0     0 51572.7083    0    1 51604.0000 51572.7083  0.06%     -    4s

Cutting planes:
  Implied bound: 47

Explored 0 nodes (5845 simplex iterations) in 4.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.160400000000e+04, best bound 5.160400000000e+04, gap 0.0%