Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:06 2013

Optimize a model with 978 rows, 882 columns and 3474 nonzeros
Presolve removed 9 rows and 0 columns
Presolve time: 0.00s
Presolved: 969 rows, 882 columns, 3465 nonzeros
Variable types: 873 continuous, 9 integer (9 binary)

Root relaxation: objective 1.856527e+04, 331 iterations, 0.01 seconds

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

     0     0 18565.2700    0    7          - 18565.2700     -      -    0s
H    0     0                    18978.000000 18565.2700  2.17%     -    0s
*    0     0               0    18902.000000 18902.0000   0.0%     -    0s

Cutting planes:
  Gomory: 5
  Implied bound: 7

Explored 0 nodes (384 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.890200000000e+04, best bound 1.890200000000e+04, gap 0.0%