Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:01:34 2012 Optimize a model with 264 rows, 759 columns and 759 nonzeros Model has 526 quadratic constraints Presolve removed 0 rows and 15 columns Presolve time: 3.07s Presolved: 264 rows, 744 columns, 744 nonzeros Variable types: 526 continuous, 218 integer (217 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 132.0000000 - - - 3s 0 0 0.00000 0 15 132.00000 0.00000 100% - 3s 0 0 0.00000 0 29 132.00000 0.00000 100% - 3s 0 0 0.00000 0 27 132.00000 0.00000 100% - 3s 0 2 0.00000 0 8 132.00000 0.00000 100% - 3s H 54 54 37.0000000 1.26513 96.6% 56.9 3s * 61 59 47 28.0000000 1.26513 95.5% 57.3 3s H 114 82 24.0000000 2.00000 91.7% 36.6 3s * 158 110 32 23.0000000 2.56075 88.9% 34.6 3s * 203 104 23 19.0000000 2.72667 85.6% 32.2 3s * 313 135 20 18.0000000 3.21053 82.2% 30.2 3s 607 268 5.00000 16 715 18.00000 5.00000 72.2% 30.0 5s * 643 272 34 15.0000000 5.00000 66.7% 31.4 5s H 832 299 14.0000000 6.84536 51.1% 41.6 6s Explored 1408 nodes (56458 simplex iterations) in 7.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%