Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:42 2013

Optimize a model with 334 rows, 1234 columns and 59118 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.14s
Presolved: 332 rows, 1232 columns, 59284 nonzeros
Variable types: 0 continuous, 1232 integer (1232 binary)
Found heuristic solution: objective 942.0000000
Found heuristic solution: objective 764.0000000

Root relaxation: objective 6.200000e+02, 113 iterations, 0.00 seconds

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

*    0     0               0     620.0000000  620.00000   0.0%     -    0s

Explored 0 nodes (113 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.200000000000e+02, best bound 6.200000000000e+02, gap 0.0%