Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:34 2012 Optimize a model with 91 rows, 235 columns and 235 nonzeros Model has 180 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.05s Presolved: 91 rows, 234 columns, 234 nonzeros Variable types: 180 continuous, 54 integer (53 binary) Root relaxation: objective 0.000000e+00, 27 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 46.0000000 - - - 1s 0 0 0.00000 0 21 46.00000 0.00000 100% - 1s 0 0 0.00000 0 49 46.00000 0.00000 100% - 1s 0 0 0.00000 0 49 46.00000 0.00000 100% - 1s 0 2 0.00000 0 49 46.00000 0.00000 100% - 1s * 34 33 21 16.0000000 2.54545 84.1% 22.1 1s * 71 48 10 15.0000000 3.93878 73.7% 22.8 1s * 112 59 12 14.0000000 5.44444 61.1% 20.4 1s * 117 46 15 13.0000000 5.44444 58.1% 19.9 1s * 126 39 9 12.0000000 5.48571 54.3% 20.1 1s Cutting planes: Gomory: 1 Explored 297 nodes (5628 simplex iterations) in 1.18 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%