Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:11:12 2012

Optimize a model with 439 rows, 427 columns and 1522 nonzeros
Presolve removed 0 rows and 26 columns
Presolve time: 0.00s
Presolved: 439 rows, 401 columns, 1496 nonzeros
Variable types: 0 continuous, 401 integer (400 binary)
Found heuristic solution: objective 76.0000000

Root relaxation: objective 0.000000e+00, 223 iterations, 0.00 seconds

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

     0     0    0.00000    0  167   76.00000    0.00000   100%     -    0s
H    0     0                      56.0000000    0.00000   100%     -    0s
H    0     0                      52.0000000    0.00000   100%     -    0s
     0     0    0.28122    0  170   52.00000    0.28122  99.5%     -    0s
H    0     0                      36.0000000    0.28122  99.2%     -    0s
     0     0    0.81653    0  172   36.00000    0.81653  97.7%     -    0s
H    0     0                      29.0000000    0.81653  97.2%     -    0s
     0     0    0.81653    0  172   29.00000    0.81653  97.2%     -    0s
     0     2    0.81754    0  172   29.00000    0.81754  97.2%     -    0s
H   27    27                      19.0000000    1.70710  91.0%  39.6    0s
*   49    27              32      12.0000000    1.70710  85.8%  29.0    0s

Cutting planes:
  Gomory: 3

Explored 451 nodes (14751 simplex iterations) in 0.57 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%