Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:35:48 2012 Optimize a model with 345 rows, 250 columns and 1110 nonzeros Presolve time: 0.00s Presolved: 345 rows, 250 columns, 1110 nonzeros Variable types: 0 continuous, 250 integer (250 binary) Found heuristic solution: objective 82.0000000 Root relaxation: objective 0.000000e+00, 114 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 77 82.00000 0.00000 100% - 0s H 0 0 57.0000000 0.00000 100% - 0s 0 0 0.51034 0 79 57.00000 0.51034 99.1% - 0s H 0 0 56.0000000 0.51034 99.1% - 0s 0 0 0.95278 0 80 56.00000 0.95278 98.3% - 0s H 0 0 55.0000000 0.95278 98.3% - 0s 0 0 0.95650 0 81 55.00000 0.95650 98.3% - 0s 0 0 0.95650 0 81 55.00000 0.95650 98.3% - 0s H 0 0 54.0000000 0.95650 98.2% - 0s H 0 0 53.0000000 0.95650 98.2% - 0s 0 2 0.96984 0 81 53.00000 0.96984 98.2% - 0s H 32 32 47.0000000 3.69877 92.1% 40.4 0s * 48 42 28 40.0000000 3.69877 90.8% 31.1 0s * 90 69 25 39.0000000 3.71574 90.5% 28.3 0s * 120 77 19 34.0000000 7.07928 79.2% 27.5 0s * 2118 333 26 33.0000000 22.06452 33.1% 23.8 1s Explored 5206 nodes (108186 simplex iterations) in 4.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%