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 1.277568e+04, 170 iterations, 0.00 seconds

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

     0     0 12775.6801    0    4          - 12775.6801     -      -    0s
H    0     0                    12956.000000 12775.6801  1.39%     -    0s
     0     0     cutoff    0      12956.0000 12956.0000   0.0%     -    0s

Cutting planes:
  Gomory: 3
  Implied bound: 4

Explored 0 nodes (193 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.295600000000e+04, best bound 1.295600000000e+04, gap 0.0%