Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:58 2012

Optimize a model with 315 rows, 331 columns and 1116 nonzeros
Presolve removed 0 rows and 22 columns
Presolve time: 0.00s
Presolved: 315 rows, 309 columns, 1094 nonzeros
Variable types: 0 continuous, 309 integer (308 binary)
Found heuristic solution: objective 53.0000000

Root relaxation: objective 0.000000e+00, 224 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  128   53.00000    0.00000   100%     -    0s
H    0     0                      49.0000000    0.00000   100%     -    0s
H    0     0                      35.0000000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
     0     0    0.18663    0  130   32.00000    0.18663  99.4%     -    0s
H    0     0                      19.0000000    0.18663  99.0%     -    0s
H    0     0                      16.0000000    0.18663  98.8%     -    0s
     0     0    0.80683    0  132   16.00000    0.80683  95.0%     -    0s
H    0     0                      14.0000000    0.80683  94.2%     -    0s
     0     0    0.80683    0  132   14.00000    0.80683  94.2%     -    0s
     0     2    0.80683    0  132   14.00000    0.80683  94.2%     -    0s
*   14    14               9       4.0000000    1.00000  75.0%  53.0    0s

Cutting planes:
  Gomory: 3
  Zero half: 1

Explored 85 nodes (4103 simplex iterations) in 0.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%