Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:52 2013

Optimize a model with 63 rows, 49 columns and 196 nonzeros
Presolve removed 23 rows and 23 columns
Presolve time: 0.00s
Presolved: 40 rows, 26 columns, 140 nonzeros
Variable types: 5 continuous, 21 integer (21 binary)
Found heuristic solution: objective 514.0000000
Found heuristic solution: objective 403.0000000

Root relaxation: objective 3.068000e+02, 10 iterations, 0.00 seconds

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

     0     0  306.80000    0    4  403.00000  306.80000  23.9%     -    0s
     0     0  311.04451    0    9  403.00000  311.04451  22.8%     -    0s
H    0     0                     324.0000000  311.04451  4.00%     -    0s
     0     0  311.51731    0    8  324.00000  311.51731  3.85%     -    0s
     0     0  311.69231    0    6  324.00000  311.69231  3.80%     -    0s
H    0     0                     321.0000000  311.69231  2.90%     -    0s
     0     2  311.69231    0    6  321.00000  311.69231  2.90%     -    0s

Cutting planes:
  Gomory: 1
  Cover: 1
  Implied bound: 2
  MIR: 7

Explored 17 nodes (79 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.210000000000e+02, best bound 3.210000000000e+02, gap 0.0%