Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:56:39 2013

Optimize a model with 29316 rows, 3136 columns and 89376 nonzeros
Presolve removed 3616 rows and 1616 columns
Presolve time: 0.22s
Presolved: 25700 rows, 1520 columns, 78106 nonzeros
Variable types: 19 continuous, 1501 integer (1501 binary)
Found heuristic solution: objective 77300.000000

Root relaxation: objective 6.079038e+04, 6767 iterations, 0.39 seconds

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

     0     0 60790.3750    0   11 77300.0000 60790.3750  21.4%     -    0s
H    0     0                    60798.000000 60790.3750  0.01%     -    0s
     0     0 60791.0000    0   12 60798.0000 60791.0000  0.01%     -    0s
     0     0 60791.0000    0   12 60798.0000 60791.0000  0.01%     -    1s
     0     0 60791.0000    0   15 60798.0000 60791.0000  0.01%     -    1s
     0     2 60791.0000    0   15 60798.0000 60791.0000  0.01%     -    1s
H    1     2                    60795.000000 60791.0000  0.01%  44.0    1s

Explored 2 nodes (7320 simplex iterations) in 1.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.079500000000e+04, best bound 6.079100000000e+04, gap 0.0066%