Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:58:25 2012 Optimize a model with 146 rows, 314 columns and 314 nonzeros Model has 290 quadratic constraints Presolve time: 1.68s Presolved: 146 rows, 314 columns, 314 nonzeros Variable types: 290 continuous, 24 integer (24 binary) Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 83.0000000 - - - 1s 0 0 0.00000 0 24 83.00000 0.00000 100% - 1s 0 0 0.54545 0 24 83.00000 0.54545 99.3% - 1s 0 2 0.87273 0 24 83.00000 0.87273 98.9% - 1s H 8 8 82.0000000 5.74242 93.0% 52.1 1s * 34 34 19 70.0000000 5.74242 91.8% 37.7 1s * 35 33 20 69.0000000 5.74242 91.7% 36.7 1s * 64 52 18 63.0000000 5.86364 90.7% 33.9 1s * 68 50 17 62.0000000 5.86364 90.5% 32.0 1s * 134 85 16 60.0000000 11.13636 81.4% 33.8 1s H 199 130 58.0000000 16.05455 72.3% 33.4 1s * 2144 553 45 57.0000000 36.50000 36.0% 26.8 4s * 2744 645 36 56.0000000 39.00000 30.4% 24.5 4s * 3213 646 30 55.0000000 40.71429 26.0% 23.6 4s H 3256 603 54.0000000 41.00000 24.1% 23.5 4s 3476 579 50.00000 28 187 54.00000 42.15385 21.9% 23.3 5s Explored 4986 nodes (104432 simplex iterations) in 7.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.400000000000e+01, best bound 5.400000000000e+01, gap 0.0%