Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:50:36 2013

Optimize a model with 622 rows, 546 columns and 2142 nonzeros
Presolve removed 7 rows and 0 columns
Presolve time: 0.00s
Presolved: 615 rows, 546 columns, 2135 nonzeros
Variable types: 539 continuous, 7 integer (7 binary)

Root relaxation: objective 1.204362e+04, 85 iterations, 0.00 seconds

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

     0     0 12043.6222    0    2          - 12043.6222     -      -    0s
H    0     0                    12130.000000 12043.6222  0.71%     -    0s
     0     0     cutoff    0      12130.0000 12130.0000   0.0%     -    0s

Cutting planes:
  Gomory: 2
  Implied bound: 2

Explored 0 nodes (92 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.213000000000e+04, best bound 1.213000000000e+04, gap 0.0%