Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:37:39 2013

Optimize a model with 64880 rows, 64080 columns and 256080 nonzeros
Presolve removed 3891 rows and 0 columns
Presolve time: 0.42s
Presolved: 60989 rows, 64080 columns, 248298 nonzeros
Variable types: 64000 continuous, 80 integer (80 binary)

Root relaxation: objective 9.127121e+04, 15149 iterations, 3.51 seconds

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

     0     0 91271.2086    0    2          - 91271.2086     -      -    4s
H    0     0                    92081.000000 91271.2086  0.88%     -    4s
H    0     0                    91279.000000 91271.2086  0.01%     -    4s

Explored 0 nodes (15149 simplex iterations) in 4.59 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.127900000000e+04, best bound 9.127120857143e+04, gap 0.0085%