Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:12:56 2013

Optimize a model with 696 rows, 256 columns and 2176 nonzeros
Presolve removed 140 rows and 127 columns
Presolve time: 0.00s
Presolved: 556 rows, 129 columns, 1798 nonzeros
Variable types: 10 continuous, 119 integer (119 binary)
Found heuristic solution: objective 4633.0000000

Root relaxation: objective 3.219895e+03, 27 iterations, 0.00 seconds

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

     0     0 3219.89474    0    9 4633.00000 3219.89474  30.5%     -    0s
     0     0 3222.14263    0   15 4633.00000 3222.14263  30.5%     -    0s
H    0     0                    3229.0000000 3222.14263  0.21%     -    0s
     0     0 3224.19626    0   15 3229.00000 3224.19626  0.15%     -    0s
     0     0 3224.19626    0   11 3229.00000 3224.19626  0.15%     -    0s
     0     0     cutoff    0      3229.00000 3228.00323  0.03%     -    0s

Cutting planes:
  Cover: 1
  Implied bound: 6
  Clique: 1
  MIR: 10

Explored 0 nodes (184 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.229000000000e+03, best bound 3.229000000000e+03, gap 0.0%