Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:26 2013

Optimize a model with 1016 rows, 2013 columns and 7025 nonzeros
Presolve removed 13 rows and 50 columns
Presolve time: 0.06s
Presolved: 1003 rows, 1963 columns, 5888 nonzeros
Variable types: 1000 continuous, 963 integer (963 binary)
Found heuristic solution: objective 3439.5352553

Root relaxation: objective 3.435455e+03, 6 iterations, 0.00 seconds

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

     0     0 3435.45471    0    2 3439.53526 3435.45471  0.12%     -    0s
     0     0 3435.75013    0    2 3439.53526 3435.75013  0.11%     -    0s
     0     0 3436.04262    0    2 3439.53526 3436.04262  0.10%     -    0s
     0     0 3436.33228    0    2 3439.53526 3436.33228  0.09%     -    0s
     0     0 3436.61918    0    2 3439.53526 3436.61918  0.08%     -    0s
     0     0 3436.90340    0    2 3439.53526 3436.90340  0.08%     -    0s
     0     0 3437.18500    0    2 3439.53526 3437.18500  0.07%     -    0s
     0     0 3437.46406    0    2 3439.53526 3437.46406  0.06%     -    0s
     0     0 3437.74063    0    2 3439.53526 3437.74063  0.05%     -    0s
     0     0 3438.01478    0    2 3439.53526 3438.01478  0.04%     -    0s
     0     0 3438.28655    0    2 3439.53526 3438.28655  0.04%     -    0s
     0     0 3438.55602    0    2 3439.53526 3438.55602  0.03%     -    0s
     0     0 3438.82322    0    2 3439.53526 3438.82322  0.02%     -    0s
     0     0 3439.08821    0    2 3439.53526 3439.08821  0.01%     -    0s
     0     0 3439.35085    0    2 3439.53526 3439.35085  0.01%     -    0s

Explored 0 nodes (78 simplex iterations) in 0.31 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.439535255311e+03, best bound 3.439350845127e+03, gap 0.0054%