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

Optimize a model with 431 rows, 424 columns and 1499 nonzeros
Presolve removed 0 rows and 24 columns
Presolve time: 0.00s
Presolved: 431 rows, 400 columns, 1475 nonzeros
Variable types: 0 continuous, 400 integer (399 binary)
Found heuristic solution: objective 84.0000000

Root relaxation: objective 0.000000e+00, 244 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  171   84.00000    0.00000   100%     -    0s
H    0     0                      54.0000000    0.00000   100%     -    0s
H    0     0                      53.0000000    0.00000   100%     -    0s
H    0     0                      49.0000000    0.00000   100%     -    0s
     0     0    0.21757    0  173   49.00000    0.21757   100%     -    0s
H    0     0                      46.0000000    0.21757   100%     -    0s
     0     0    0.78166    0  178   46.00000    0.78166  98.3%     -    0s
H    0     0                      42.0000000    0.78166  98.1%     -    0s
     0     0    0.78234    0  179   42.00000    0.78234  98.1%     -    0s
     0     0    0.78234    0  179   42.00000    0.78234  98.1%     -    0s
     0     2    0.78352    0  179   42.00000    0.78352  98.1%     -    0s
H   27    27                      18.0000000    1.00000  94.4%  40.1    0s
H   54    19                      10.0000000    1.00000  90.0%  23.8    0s
*  254    39              10       9.0000000    4.64865  48.3%  34.1    0s

Cutting planes:
  Gomory: 4
  Zero half: 7
  Mod-K: 2

Explored 312 nodes (10994 simplex iterations) in 0.50 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%