Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:22:18 2012 Optimize a model with 238 rows, 688 columns and 688 nonzeros Model has 474 quadratic constraints Presolve removed 0 rows and 22 columns Presolve time: 2.76s Presolved: 238 rows, 666 columns, 666 nonzeros Variable types: 474 continuous, 192 integer (191 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 0 117.0000000 - - - 2s 0 0 0.00000 0 93 117.00000 0.00000 100% - 2s 0 0 0.00000 0 109 117.00000 0.00000 100% - 2s 0 0 0.00000 0 158 117.00000 0.00000 100% - 2s 0 2 0.00000 0 153 117.00000 0.00000 100% - 2s * 40 39 23 18.0000000 2.51007 86.1% 41.3 3s H 155 92 17.0000000 4.37662 74.3% 28.3 3s * 246 97 19 15.0000000 5.44937 63.7% 24.4 3s * 396 107 16 14.0000000 7.94366 43.3% 24.5 3s 805 167 11.35616 19 412 14.00000 11.35616 18.9% 29.8 5s Explored 2424 nodes (67224 simplex iterations) in 7.52 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%