Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:55:27 2012 Optimize a model with 123 rows, 266 columns and 266 nonzeros Model has 244 quadratic constraints Presolve time: 1.41s Presolved: 123 rows, 266 columns, 266 nonzeros Variable types: 244 continuous, 22 integer (22 binary) Root relaxation: objective 0.000000e+00, 11 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 68.0000000 - - - 1s 0 0 0.00000 0 20 68.00000 0.00000 100% - 1s 0 0 0.56250 0 22 68.00000 0.56250 99.2% - 1s 0 0 0.56250 0 22 68.00000 0.56250 99.2% - 1s 0 2 0.56250 0 22 68.00000 0.56250 99.2% - 1s H 8 8 51.0000000 5.37500 89.5% 44.6 1s H 56 45 49.0000000 5.41667 88.9% 32.1 1s * 423 201 17 48.0000000 20.95000 56.4% 28.9 1s Explored 4526 nodes (94957 simplex iterations) in 4.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.800000000000e+01, best bound 4.800000000000e+01, gap 0.0%