Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:36 2013

Optimize a model with 15678 rows, 15288 columns and 60918 nonzeros
Presolve removed 39 rows and 0 columns
Presolve time: 0.07s
Presolved: 15639 rows, 15288 columns, 60879 nonzeros
Variable types: 15249 continuous, 39 integer (39 binary)

Root relaxation: objective 3.563807e+04, 1846 iterations, 0.30 seconds

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

     0     0 35638.0730    0   32          - 35638.0730     -      -    0s
H    0     0                    44282.000000 35638.0730  19.5%     -    0s
     0     0 39303.4250    0    8 44282.0000 39303.4250  11.2%     -    1s
H    0     0                    41893.119492 39303.4250  6.18%     -    1s
H    0     0                    41071.000000 39303.4250  4.30%     -    1s
     0     0 39524.8727    0    3 41071.0000 39524.8727  3.76%     -    1s
H    0     0                    40814.515267 39524.8727  3.16%     -    1s
H    0     0                    40330.000000 39524.8727  2.00%     -    1s
H    0     0                    39546.000000 39524.8727  0.05%     -    1s
     0     0 39545.9286    0    1 39546.0000 39545.9286  0.00%     -    1s

Cutting planes:
  Gomory: 1
  Implied bound: 34

Explored 0 nodes (3154 simplex iterations) in 1.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.954600000000e+04, best bound 3.954592857143e+04, gap 0.0002%