Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:14:56 2012 Optimize a model with 135 rows, 318 columns and 318 nonzeros Model has 268 quadratic constraints Presolve time: 1.56s Presolved: 135 rows, 318 columns, 318 nonzeros Variable types: 268 continuous, 50 integer (50 binary) Root relaxation: objective 0.000000e+00, 25 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 75.0000000 - - - 1s 0 0 0.00000 0 33 75.00000 0.00000 100% - 1s 0 0 0.25170 0 49 75.00000 0.25170 100% - 1s 0 2 0.28571 0 49 75.00000 0.28571 100% - 1s * 28 28 16 39.0000000 2.25614 94.2% 43.2 1s * 35 27 16 37.0000000 2.25614 93.9% 37.0 1s H 62 43 32.0000000 4.16336 87.0% 34.2 1s * 94 67 21 31.0000000 4.59453 85.2% 32.0 1s * 2474 330 38 30.0000000 23.56342 21.5% 23.3 3s Explored 3266 nodes (69449 simplex iterations) in 4.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%