Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:44:58 2012

Optimize a model with 357 rows, 259 columns and 1149 nonzeros
Presolve time: 0.00s
Presolved: 357 rows, 259 columns, 1149 nonzeros
Variable types: 0 continuous, 259 integer (259 binary)
Found heuristic solution: objective 91.0000000

Root relaxation: objective 0.000000e+00, 118 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   80   91.00000    0.00000   100%     -    0s
H    0     0                      62.0000000    0.00000   100%     -    0s
     0     0    0.51316    0   81   62.00000    0.51316  99.2%     -    0s
     0     0    0.55263    0   83   62.00000    0.55263  99.1%     -    0s
H    0     0                      61.0000000    0.55263  99.1%     -    0s
     0     0    0.55263    0   83   61.00000    0.55263  99.1%     -    0s
     0     2    0.55263    0   83   61.00000    0.55263  99.1%     -    0s
H   27    27                      57.0000000    3.40961  94.0%  43.7    0s
*   35    35              20      45.0000000    3.40961  92.4%  37.8    0s
*   65    53              16      41.0000000    3.46053  91.6%  35.4    0s
*   71    51              19      39.0000000    3.46053  91.1%  32.6    0s
*  103    66              17      38.0000000    6.50619  82.9%  32.6    0s
*  316   159              14      37.0000000   12.06125  67.4%  30.8    0s
*  559   251              15      36.0000000   15.62500  56.6%  29.4    0s
*  621   248              25      34.0000000   17.93567  47.2%  28.2    0s
* 1144   262              25      33.0000000   18.68421  43.4%  28.3    1s

Cutting planes:
  Gomory: 1
  Zero half: 1
  Mod-K: 1

Explored 2806 nodes (76508 simplex iterations) in 3.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%