Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:46:58 2012 Optimize a model with 118 rows, 286 columns and 286 nonzeros Model has 234 quadratic constraints Presolve time: 1.36s Presolved: 118 rows, 286 columns, 286 nonzeros Variable types: 234 continuous, 52 integer (52 binary) Root relaxation: objective 0.000000e+00, 26 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 48 57.00000 0.00000 100% - 1s 0 0 0.46718 0 51 57.00000 0.46718 99.2% - 1s 0 2 0.47826 0 51 57.00000 0.47826 99.2% - 1s * 42 42 25 33.0000000 2.51020 92.4% 29.7 1s H 61 50 31.0000000 2.54087 91.8% 27.1 1s * 81 54 14 26.0000000 4.60526 82.3% 25.6 1s H 139 81 25.0000000 5.20359 79.2% 27.6 1s * 786 114 12 24.0000000 15.36730 36.0% 25.0 1s Cutting planes: Gomory: 1 Explored 1364 nodes (31735 simplex iterations) in 2.12 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%