Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:41 2012 Optimize a model with 102 rows, 264 columns and 264 nonzeros Model has 202 quadratic constraints Presolve time: 1.18s Presolved: 102 rows, 264 columns, 264 nonzeros Variable types: 202 continuous, 62 integer (62 binary) Root relaxation: objective 0.000000e+00, 31 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 38 57.00000 0.00000 100% - 1s 0 0 0.12500 0 56 57.00000 0.12500 100% - 1s 0 2 0.12900 0 56 57.00000 0.12900 100% - 1s H 27 27 19.0000000 2.13473 88.8% 24.3 1s * 28 24 20 16.0000000 2.13473 86.7% 23.7 1s * 68 35 11 14.0000000 3.10526 77.8% 21.6 1s * 123 56 15 13.0000000 5.68421 56.3% 22.9 1s * 126 53 18 12.0000000 5.68421 52.6% 22.5 1s Cutting planes: Gomory: 1 Explored 335 nodes (6583 simplex iterations) in 1.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%