Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:04:41 2012 Optimize a model with 269 rows, 184 columns and 854 nonzeros Presolve time: 0.00s Presolved: 269 rows, 184 columns, 854 nonzeros Variable types: 0 continuous, 184 integer (184 binary) Found heuristic solution: objective 69.0000000 Root relaxation: objective 0.000000e+00, 90 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 50 69.00000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s H 0 0 48.0000000 0.00000 100% - 0s 0 0 0.93182 0 52 48.00000 0.93182 98.1% - 0s H 0 0 43.0000000 0.93182 97.8% - 0s 0 0 1.00000 0 52 43.00000 1.00000 97.7% - 0s 0 0 1.00000 0 53 43.00000 1.00000 97.7% - 0s 0 0 1.00505 0 55 43.00000 1.00505 97.7% - 0s 0 0 1.00505 0 55 43.00000 1.00505 97.7% - 0s 0 2 1.00505 0 55 43.00000 1.00505 97.7% - 0s * 33 33 20 41.0000000 3.81633 90.7% 23.5 0s * 38 28 21 40.0000000 3.81633 90.5% 20.8 0s * 69 51 19 38.0000000 3.83784 89.9% 21.5 0s * 130 86 18 37.0000000 6.25000 83.1% 21.7 0s * 150 76 12 32.0000000 8.12500 74.6% 21.9 0s * 234 83 14 31.0000000 11.13793 64.1% 20.8 0s * 592 95 12 30.0000000 19.28571 35.7% 19.4 0s Cutting planes: Gomory: 1 Zero half: 4 Explored 1008 nodes (18748 simplex iterations) in 0.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%