Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:29 2013

Optimize a model with 11968 rows, 11628 columns and 46308 nonzeros
Presolve removed 34 rows and 0 columns
Presolve time: 0.05s
Presolved: 11934 rows, 11628 columns, 46274 nonzeros
Variable types: 11594 continuous, 34 integer (34 binary)

Root relaxation: objective 2.828762e+04, 1178 iterations, 0.11 seconds

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

     0     0 28287.6213    0   23          - 28287.6213     -      -    0s
H    0     0                    30998.000000 28287.6213  8.74%     -    0s
     0     0 30157.3953    0    1 30998.0000 30157.3953  2.71%     -    0s
H    0     0                    30722.604651 30157.3953  1.84%     -    0s
H    0     0                    30564.000000 30157.3953  1.33%     -    0s
H    0     0                    30220.000000 30157.3953  0.21%     -    0s
     0     2 30171.5714    0    1 30220.0000 30171.5714  0.16%     -    0s

Cutting planes:
  Implied bound: 21

Explored 2 nodes (1726 simplex iterations) in 0.69 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.022000000000e+04, best bound 3.021720633028e+04, gap 0.0092%