Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:55:09 2012 Optimize a model with 114 rows, 248 columns and 248 nonzeros Model has 226 quadratic constraints Presolve time: 1.31s Presolved: 114 rows, 248 columns, 248 nonzeros Variable types: 226 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 59.0000000 - - - 1s 0 0 0.00000 0 20 59.00000 0.00000 100% - 1s 0 0 0.50000 0 22 59.00000 0.50000 99.2% - 1s 0 0 0.50000 0 22 59.00000 0.50000 99.2% - 1s 0 2 0.50000 0 22 59.00000 0.50000 99.2% - 1s * 32 32 17 49.0000000 7.25926 85.2% 29.1 1s * 33 31 18 48.0000000 7.25926 84.9% 28.4 1s * 121 90 17 46.0000000 10.77778 76.6% 28.6 1s * 176 127 12 45.0000000 15.14286 66.3% 31.4 1s Explored 3521 nodes (77304 simplex iterations) in 4.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%