Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:43:56 2012 Optimize a model with 123 rows, 288 columns and 288 nonzeros Model has 244 quadratic constraints Presolve time: 1.42s Presolved: 123 rows, 288 columns, 288 nonzeros Variable types: 244 continuous, 44 integer (44 binary) Root relaxation: objective 0.000000e+00, 22 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 57.0000000 - - - 1s 0 0 0.00000 0 23 57.00000 0.00000 100% - 1s 0 0 0.00000 0 36 57.00000 0.00000 100% - 1s 0 0 0.00000 0 36 57.00000 0.00000 100% - 1s 0 2 0.00000 0 36 57.00000 0.00000 100% - 1s H 51 51 34.0000000 2.11253 93.8% 23.8 1s H 83 67 33.0000000 2.14989 93.5% 25.5 1s * 108 82 15 32.0000000 4.56630 85.7% 26.7 1s * 807 356 55 31.0000000 13.52273 56.4% 33.4 2s * 1860 322 39 29.0000000 19.44444 33.0% 24.8 3s Explored 3160 nodes (68074 simplex iterations) in 4.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%