Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:12 2013

Optimize a model with 9982 rows, 9672 columns and 38502 nonzeros
Presolve removed 31 rows and 0 columns
Presolve time: 0.04s
Presolved: 9951 rows, 9672 columns, 38471 nonzeros
Variable types: 9641 continuous, 31 integer (31 binary)

Root relaxation: objective 2.678702e+04, 1211 iterations, 0.13 seconds

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

     0     0 26787.0155    0   25          - 26787.0155     -      -    0s
H    0     0                    29745.000000 26787.0155  9.94%     -    0s
     0     0 28391.1112    0    5 29745.0000 28391.1112  4.55%     -    0s
H    0     0                    28744.000000 28391.1112  1.23%     -    0s
H    0     0                    28532.000000 28391.1112  0.49%     -    0s
     0     0 28403.7842    0    5 28532.0000 28403.7842  0.45%     -    0s
     0     0 28428.7454    0    4 28532.0000 28428.7454  0.36%     -    0s
     0     2 28431.4114    0    4 28532.0000 28431.4114  0.35%     -    0s
*    5     3               5    28524.000000 28472.7719  0.18%  26.6    0s
*   12     0               6    28515.000000 28515.0000   0.0%  19.7    0s

Cutting planes:
  Gomory: 1
  Implied bound: 25

Explored 13 nodes (1971 simplex iterations) in 0.81 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.851500000000e+04, best bound 2.851500000000e+04, gap 0.0%