Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:46:46 2012 Optimize a model with 148 rows, 375 columns and 375 nonzeros Model has 294 quadratic constraints Presolve time: 1.72s Presolved: 148 rows, 375 columns, 375 nonzeros Variable types: 294 continuous, 81 integer (81 binary) Root relaxation: objective 0.000000e+00, 40 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 4 76.00000 0.00000 100% - 1s 0 0 0.00000 0 5 76.00000 0.00000 100% - 1s 0 0 0.00000 0 72 76.00000 0.00000 100% - 1s 0 2 0.00000 0 71 76.00000 0.00000 100% - 1s H 16 16 67.0000000 4.68421 93.0% 67.0 1s * 40 35 24 26.0000000 4.68421 82.0% 43.6 1s H 100 77 25.0000000 4.93333 80.3% 33.2 1s * 185 131 14 24.0000000 7.47619 68.8% 36.1 1s * 187 117 16 23.0000000 7.47619 67.5% 35.8 1s * 759 182 35 22.0000000 13.50000 38.6% 40.4 4s Explored 1309 nodes (43240 simplex iterations) in 4.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%