Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:39 2012 Optimize a model with 103 rows, 273 columns and 273 nonzeros Model has 204 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 1.19s Presolved: 103 rows, 271 columns, 271 nonzeros Variable types: 204 continuous, 67 integer (66 binary) Root relaxation: objective 0.000000e+00, 34 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 49.0000000 - - - 1s 0 0 0.00000 0 14 49.00000 0.00000 100% - 1s 0 0 0.00000 0 15 49.00000 0.00000 100% - 1s 0 0 0.00000 0 57 49.00000 0.00000 100% - 1s 0 2 0.00000 0 57 49.00000 0.00000 100% - 1s * 30 26 17 14.0000000 3.48780 75.1% 28.4 1s H 54 33 13.0000000 3.90275 70.0% 22.1 1s * 126 42 8 12.0000000 4.95869 58.7% 23.8 1s Cutting planes: Explored 279 nodes (7402 simplex iterations) in 1.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%