Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:47:08 2012 Optimize a model with 258 rows, 735 columns and 735 nonzeros Model has 514 quadratic constraints Presolve removed 0 rows and 18 columns Presolve time: 3.00s Presolved: 258 rows, 717 columns, 717 nonzeros Variable types: 514 continuous, 203 integer (202 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 0 121.0000000 - - - 3s 0 0 0.00000 0 22 121.00000 0.00000 100% - 3s 0 0 0.00000 0 118 121.00000 0.00000 100% - 3s 0 0 0.00000 0 110 121.00000 0.00000 100% - 3s 0 2 0.00000 0 110 121.00000 0.00000 100% - 3s H 45 45 28.0000000 1.52516 94.6% 40.7 3s * 46 46 36 24.0000000 1.52516 93.6% 40.7 3s H 108 89 23.0000000 1.72917 92.5% 27.2 3s * 148 73 24 20.0000000 2.64817 86.8% 24.1 3s * 435 201 17 19.0000000 5.68117 70.1% 22.5 3s 631 282 13.84076 24 364 19.00000 7.31723 61.5% 30.2 5s * 761 321 40 18.0000000 7.31723 59.3% 40.4 5s * 1277 254 40 17.0000000 9.50000 44.1% 39.8 6s Explored 2358 nodes (89009 simplex iterations) in 9.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%