Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:23:33 2012 Optimize a model with 262 rows, 750 columns and 750 nonzeros Model has 522 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 3.04s Presolved: 262 rows, 733 columns, 733 nonzeros Variable types: 522 continuous, 211 integer (210 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 0 143.0000000 - - - 3s 0 0 0.00000 0 135 143.00000 0.00000 100% - 3s 0 0 0.06087 0 199 143.00000 0.06087 100% - 3s 0 2 0.06781 0 199 143.00000 0.06781 100% - 3s H 53 53 16.0000000 1.28788 92.0% 32.2 3s * 53 43 28 14.0000000 1.28788 90.8% 32.2 3s 601 188 8.65644 6 199 14.00000 7.83158 44.1% 26.3 5s Explored 1874 nodes (59083 simplex iterations) in 8.88 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%