Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:31:35 2012 Optimize a model with 300 rows, 835 columns and 835 nonzeros Model has 598 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 3.49s Presolved: 300 rows, 812 columns, 812 nonzeros Variable types: 598 continuous, 214 integer (213 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 0 150.0000000 - - - 3s 0 0 0.00000 0 4 150.00000 0.00000 100% - 3s 0 0 0.00000 0 48 150.00000 0.00000 100% - 3s 0 0 0.00000 0 47 150.00000 0.00000 100% - 3s 0 2 0.00000 0 188 150.00000 0.00000 100% - 3s H 54 54 59.0000000 2.66341 95.5% 42.4 3s * 66 59 40 31.0000000 2.66341 91.4% 38.7 3s H 139 79 24.0000000 3.25000 86.5% 33.5 3s * 212 94 65 23.0000000 3.25000 85.9% 31.5 4s 607 267 8.52625 16 806 23.00000 8.52625 62.9% 38.1 5s * 1573 274 49 22.0000000 13.86207 37.0% 37.6 8s 2298 250 20.98592 38 387 22.00000 15.91071 27.7% 36.5 10s Explored 3377 nodes (120206 simplex iterations) in 12.79 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%