Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:55:40 2012 Optimize a model with 147 rows, 346 columns and 346 nonzeros Model has 292 quadratic constraints Presolve time: 1.70s Presolved: 147 rows, 346 columns, 346 nonzeros Variable types: 292 continuous, 54 integer (54 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 74.0000000 - - - 1s 0 0 0.00000 0 52 74.00000 0.00000 100% - 1s 0 0 0.48981 0 53 74.00000 0.48981 99.3% - 1s 0 2 0.65333 0 53 74.00000 0.65333 99.1% - 1s * 28 28 17 35.0000000 5.28444 84.9% 45.1 1s * 31 29 19 34.0000000 5.28444 84.5% 41.8 1s H 99 64 33.0000000 10.00000 69.7% 39.1 1s * 2590 419 36 32.0000000 24.22809 24.3% 24.7 4s 2917 397 29.97073 34 203 32.00000 25.50000 20.3% 23.7 5s Explored 3953 nodes (86507 simplex iterations) in 5.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%