Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:04:33 2012 Optimize a model with 375 rows, 250 columns and 1185 nonzeros Presolve time: 0.00s Presolved: 375 rows, 250 columns, 1185 nonzeros Variable types: 0 continuous, 250 integer (250 binary) Found heuristic solution: objective 85.0000000 Root relaxation: objective 0.000000e+00, 100 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 62 85.00000 0.00000 100% - 0s H 0 0 75.0000000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s 0 0 0.53571 0 63 70.00000 0.53571 99.2% - 0s 0 0 1.00000 0 65 70.00000 1.00000 98.6% - 0s H 0 0 65.0000000 1.00000 98.5% - 0s 0 0 1.00000 0 65 65.00000 1.00000 98.5% - 0s H 0 0 64.0000000 1.00000 98.4% - 0s 0 0 1.00000 0 64 64.00000 1.00000 98.4% - 0s 0 0 1.00000 0 64 64.00000 1.00000 98.4% - 0s 0 0 1.00000 0 64 64.00000 1.00000 98.4% - 0s 0 2 1.00000 0 62 64.00000 1.00000 98.4% - 0s * 30 30 15 47.0000000 4.59259 90.2% 42.1 0s * 2068 465 33 46.0000000 26.60000 42.2% 28.8 2s H 2522 510 45.0000000 28.83333 35.9% 28.2 2s 5045 499 cutoff 25 45.00000 34.16667 24.1% 26.5 5s Cutting planes: Gomory: 1 Explored 7589 nodes (192124 simplex iterations) in 7.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%