Gurobi 5.0.1 (linux64) logging started Fri Jan 18 06:10:12 2013

Optimize a model with 700 rows, 50150 columns and 125200 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.14s
Presolved: 650 rows, 50100 columns, 100150 nonzeros
Variable types: 50100 continuous, 0 integer (0 binary)

Root relaxation: objective 2.198499e+05, 3099 iterations, 0.17 seconds

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

     0     0 219849.939    0    2          - 219849.939     -      -    0s
     0     2 219849.939    0    2          - 219849.939     -      -    1s
*   73    25              37    222622.35999 220950.526  0.75%  37.7    2s
*  105    19              18    221990.67135 221014.973  0.44%  35.1    3s
*  152     6              21    221988.58808 221923.775  0.03%  31.2    3s

Explored 162 nodes (7914 simplex iterations) in 3.90 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.219885880773e+05, best bound 2.219802889396e+05, gap 0.0037%