Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:59:55 2012 Optimize a model with 329 rows, 248 columns and 1068 nonzeros Presolve time: 0.00s Presolved: 329 rows, 248 columns, 1068 nonzeros Variable types: 0 continuous, 248 integer (248 binary) Found heuristic solution: objective 80.0000000 Found heuristic solution: objective 75.0000000 Root relaxation: objective 0.000000e+00, 125 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 83 75.00000 0.00000 100% - 0s H 0 0 59.0000000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s 0 0 0.56258 0 84 55.00000 0.56258 99.0% - 0s H 0 0 53.0000000 0.56258 98.9% - 0s 0 0 1.00000 0 86 53.00000 1.00000 98.1% - 0s H 0 0 52.0000000 1.00000 98.1% - 0s 0 0 1.00000 0 89 52.00000 1.00000 98.1% - 0s H 0 0 48.0000000 1.00000 97.9% - 0s H 0 0 46.0000000 1.00000 97.8% - 0s 0 0 1.00000 0 87 46.00000 1.00000 97.8% - 0s H 0 0 43.0000000 1.00000 97.7% - 0s 0 0 1.00000 0 85 43.00000 1.00000 97.7% - 0s 0 0 1.00000 0 84 43.00000 1.00000 97.7% - 0s 0 0 1.00000 0 85 43.00000 1.00000 97.7% - 0s 0 0 1.00000 0 85 43.00000 1.00000 97.7% - 0s H 0 0 37.0000000 1.00000 97.3% - 0s 0 2 1.00000 0 83 37.00000 1.00000 97.3% - 0s H 44 32 26.0000000 2.53970 90.2% 25.9 0s * 1048 268 30 25.0000000 11.52055 53.9% 26.6 1s H 1053 249 24.0000000 11.52055 52.0% 26.6 1s Cutting planes: Gomory: 1 Explored 3390 nodes (82438 simplex iterations) in 3.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%