Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:30:22 2012 Optimize a model with 177 rows, 428 columns and 428 nonzeros Model has 352 quadratic constraints Presolve time: 2.05s Presolved: 177 rows, 428 columns, 428 nonzeros Variable types: 352 continuous, 76 integer (76 binary) Root relaxation: objective 0.000000e+00, 38 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 92.0000000 - - - 2s 0 0 0.00000 0 3 92.00000 0.00000 100% - 2s 0 0 0.00000 0 68 92.00000 0.00000 100% - 2s 0 0 0.00000 0 63 92.00000 0.00000 100% - 2s 0 2 0.00000 0 62 92.00000 0.00000 100% - 2s * 40 40 23 35.0000000 4.00000 88.6% 47.4 2s * 102 76 18 33.0000000 5.00000 84.8% 40.7 2s 836 370 30.24153 36 250 33.00000 12.66667 61.6% 43.6 5s 5514 1068 31.90476 40 250 33.00000 24.94340 24.4% 22.9 10s 10794 8 cutoff 48 33.00000 32.87195 0.39% 20.2 15s Explored 10803 nodes (219268 simplex iterations) in 15.00 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%