Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:59:36 2012 Optimize a model with 257 rows, 736 columns and 736 nonzeros Model has 512 quadratic constraints Presolve removed 0 rows and 12 columns Presolve time: 2.99s Presolved: 257 rows, 724 columns, 724 nonzeros Variable types: 512 continuous, 212 integer (211 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 127.0000000 - - - 2s 0 0 0.00000 0 105 127.00000 0.00000 100% - 3s 0 0 0.00000 0 133 127.00000 0.00000 100% - 3s 0 0 0.00000 0 125 127.00000 0.00000 100% - 3s 0 2 0.00000 0 125 127.00000 0.00000 100% - 3s H 36 34 14.0000000 2.59459 81.5% 43.4 3s * 39 34 22 13.0000000 2.59459 80.0% 42.7 3s H 112 66 13.0000000 2.60870 79.9% 24.4 3s Cutting planes: Gomory: 1 Explored 526 nodes (15203 simplex iterations) in 3.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.299999999857e+01, best bound 1.299999999857e+01, gap 0.0%