Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:45:38 2012 Optimize a model with 260 rows, 749 columns and 749 nonzeros Model has 518 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 3.02s Presolved: 260 rows, 725 columns, 725 nonzeros Variable types: 518 continuous, 207 integer (206 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 0 131.0000000 - - - 3s 0 0 0.00000 0 5 131.00000 0.00000 100% - 3s 0 0 0.00000 0 3 131.00000 0.00000 100% - 3s 0 0 0.00000 0 2 131.00000 0.00000 100% - 3s 0 2 0.00000 0 75 131.00000 0.00000 100% - 3s * 41 39 36 19.0000000 3.08108 83.8% 43.0 3s 620 364 8.86857 23 398 19.00000 7.62584 59.9% 27.4 5s * 790 397 53 18.0000000 7.62584 57.6% 31.8 5s H 875 407 17.0000000 7.62584 55.1% 32.2 5s * 881 355 66 16.0000000 7.62584 52.3% 32.1 5s * 1104 299 46 15.0000000 7.62584 49.2% 35.6 6s Explored 1824 nodes (68664 simplex iterations) in 8.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%