Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:43:46 2013

Optimize a model with 40383 rows, 39753 columns and 158823 nonzeros
Presolve removed 2420 rows and 0 columns
Presolve time: 0.24s
Presolved: 37963 rows, 39753 columns, 153983 nonzeros
Variable types: 39690 continuous, 63 integer (63 binary)

Root relaxation: objective 8.495585e+04, 9669 iterations, 1.39 seconds

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

     0     0 84955.8457    0    6          - 84955.8457     -      -    1s
H    0     0                    86293.000000 84955.8457  1.55%     -    1s
H    0     0                    85019.000000 84955.8457  0.07%     -    2s
     0     0 84959.6101    0    5 85019.0000 84959.6101  0.07%     -    2s
     0     0 84959.6101    0    4 85019.0000 84959.6101  0.07%     -    3s
     0     0 84959.6101    0    7 85019.0000 84959.6101  0.07%     -    3s
     0     0 84959.6104    0    6 85019.0000 84959.6104  0.07%     -    3s
     0     0 84959.8234    0    7 85019.0000 84959.8234  0.07%     -    3s
     0     0 84985.2381    0    1 85019.0000 84985.2381  0.04%     -    3s

Explored 0 nodes (12614 simplex iterations) in 3.64 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.501900000000e+04, best bound 8.501900000000e+04, gap 0.0%