Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:51:06 2012 Optimize a model with 250 rows, 720 columns and 720 nonzeros Model has 498 quadratic constraints Presolve removed 0 rows and 20 columns Presolve time: 2.91s Presolved: 250 rows, 700 columns, 700 nonzeros Variable types: 498 continuous, 202 integer (201 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 0 132.0000000 - - - 2s 0 0 0.00000 0 6 132.00000 0.00000 100% - 2s 0 0 0.00000 0 128 132.00000 0.00000 100% - 2s 0 0 0.00000 0 97 132.00000 0.00000 100% - 3s 0 2 0.00000 0 97 132.00000 0.00000 100% - 3s H 42 42 30.0000000 1.85714 93.8% 37.3 3s * 51 45 38 26.0000000 1.85714 92.9% 41.0 3s H 84 70 25.0000000 1.92308 92.3% 33.3 3s * 102 77 39 23.0000000 1.92308 91.6% 32.3 3s * 176 112 21 21.0000000 2.84000 86.5% 27.3 3s H 189 58 15.0000000 3.36364 77.6% 26.9 3s 603 150 12.66071 12 438 15.00000 6.53846 56.4% 22.1 5s * 2110 139 50 14.0000000 11.29730 19.3% 32.4 9s Explored 2296 nodes (75509 simplex iterations) in 9.85 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%