Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:15 2012 Optimize a model with 103 rows, 268 columns and 268 nonzeros Model has 204 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.23s Presolved: 103 rows, 267 columns, 267 nonzeros Variable types: 204 continuous, 63 integer (62 binary) Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 56.0000000 - - - 1s 0 0 0.00000 0 49 56.00000 0.00000 100% - 1s 0 0 0.24740 0 61 56.00000 0.24740 100% - 1s H 0 0 49.0000000 0.24740 99.5% - 1s 0 2 0.30318 0 61 49.00000 0.30318 99.4% - 1s * 23 23 15 20.0000000 3.41176 82.9% 26.3 1s H 42 29 15.0000000 3.55556 76.3% 23.6 1s * 42 23 12 14.0000000 3.55556 74.6% 23.7 1s Cutting planes: Gomory: 1 Explored 216 nodes (5642 simplex iterations) in 1.38 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%