Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:22:35 2012 Optimize a model with 246 rows, 704 columns and 704 nonzeros Model has 490 quadratic constraints Presolve removed 0 rows and 18 columns Presolve time: 2.86s Presolved: 246 rows, 686 columns, 686 nonzeros Variable types: 490 continuous, 196 integer (195 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 0 104 117.00000 0.00000 100% - 2s 0 0 0.00000 0 175 117.00000 0.00000 100% - 2s 0 0 0.00000 0 152 117.00000 0.00000 100% - 2s 0 2 0.00000 0 152 117.00000 0.00000 100% - 2s H 54 54 24.0000000 3.14815 86.9% 35.2 3s * 57 55 35 21.0000000 3.14815 85.0% 39.0 3s * 58 53 36 20.0000000 3.14815 84.3% 39.5 3s H 130 88 19.0000000 5.04935 73.4% 29.3 3s * 130 68 20 18.0000000 5.04935 71.9% 29.4 3s H 296 126 17.0000000 7.00000 58.8% 27.4 3s H 355 119 16.0000000 7.69286 51.9% 28.2 3s * 486 109 15 15.0000000 8.76176 41.6% 27.8 3s * 808 14 10 14.0000000 13.51375 3.47% 27.8 3s Cutting planes: Gomory: 2 Explored 824 nodes (25438 simplex iterations) in 3.89 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%