Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:23:59 2012 Optimize a model with 141 rows, 351 columns and 351 nonzeros Model has 280 quadratic constraints Presolve time: 1.63s Presolved: 141 rows, 351 columns, 351 nonzeros Variable types: 280 continuous, 71 integer (71 binary) Root relaxation: objective 0.000000e+00, 35 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 76.0000000 - - - 1s 0 0 0.00000 0 3 76.00000 0.00000 100% - 1s 0 0 0.00000 0 66 76.00000 0.00000 100% - 1s 0 0 0.00000 0 50 76.00000 0.00000 100% - 1s 0 2 0.00000 0 48 76.00000 0.00000 100% - 1s H 46 46 36.0000000 3.60294 90.0% 25.4 1s * 47 47 26 28.0000000 3.60294 87.1% 26.0 1s H 155 113 24.0000000 4.80952 80.0% 29.0 1s 3139 367 22.88136 35 211 24.00000 18.36364 23.5% 22.0 5s * 4368 191 37 23.0000000 20.00000 13.0% 20.3 5s Explored 4603 nodes (92077 simplex iterations) in 6.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%