Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:54:52 2012 Optimize a model with 383 rows, 379 columns and 1334 nonzeros Presolve removed 0 rows and 27 columns Presolve time: 0.00s Presolved: 383 rows, 352 columns, 1307 nonzeros Variable types: 0 continuous, 352 integer (351 binary) Found heuristic solution: objective 56.0000000 Root relaxation: objective 0.000000e+00, 219 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 0 151 56.00000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s H 0 0 50.0000000 0.00000 100% - 0s 0 0 0.37748 0 152 50.00000 0.37748 99.2% - 0s H 0 0 48.0000000 0.37748 99.2% - 0s 0 0 1.00000 0 155 48.00000 1.00000 97.9% - 0s H 0 0 43.0000000 1.00000 97.7% - 0s H 0 0 35.0000000 1.00000 97.1% - 0s 0 0 1.00000 0 155 35.00000 1.00000 97.1% - 0s 0 0 1.00000 0 151 35.00000 1.00000 97.1% - 0s H 0 0 34.0000000 1.00000 97.1% - 0s H 0 0 30.0000000 1.00000 96.7% - 0s H 0 0 28.0000000 1.00000 96.4% - 0s 0 2 1.00000 0 151 28.00000 1.00000 96.4% - 0s H 54 25 12.0000000 2.71429 77.4% 24.3 0s * 77 13 4 9.0000000 5.64486 37.3% 23.9 0s Cutting planes: Gomory: 1 Zero half: 1 Explored 99 nodes (3922 simplex iterations) in 0.22 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%