Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:26:30 2012 Optimize a model with 255 rows, 201 columns and 836 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 255 rows, 200 columns, 835 nonzeros Variable types: 0 continuous, 200 integer (199 binary) Found heuristic solution: objective 48.0000000 Root relaxation: objective 0.000000e+00, 109 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 72 48.00000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s 0 0 0.50041 0 73 38.00000 0.50041 98.7% - 0s 0 0 1.00000 0 79 38.00000 1.00000 97.4% - 0s H 0 0 35.0000000 1.00000 97.1% - 0s H 0 0 30.0000000 1.00000 96.7% - 0s 0 0 1.00000 0 78 30.00000 1.00000 96.7% - 0s H 0 0 29.0000000 1.00000 96.6% - 0s 0 0 1.00000 0 77 29.00000 1.00000 96.6% - 0s 0 0 1.00000 0 78 29.00000 1.00000 96.6% - 0s 0 0 1.00000 0 74 29.00000 1.00000 96.6% - 0s 0 2 1.00000 0 72 29.00000 1.00000 96.6% - 0s * 30 29 18 24.0000000 2.87127 88.0% 29.1 0s * 61 39 19 21.0000000 3.82246 81.8% 26.9 0s H 81 42 17.0000000 5.22925 69.2% 26.6 0s Cutting planes: Gomory: 3 Explored 613 nodes (15442 simplex iterations) in 0.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%