Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:56:39 2012 Optimize a model with 126 rows, 298 columns and 298 nonzeros Model has 250 quadratic constraints Presolve time: 1.46s Presolved: 126 rows, 298 columns, 298 nonzeros Variable types: 250 continuous, 48 integer (48 binary) Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 59.0000000 - - - 1s 0 0 0.00000 0 2 59.00000 0.00000 100% - 1s 0 0 0.00000 0 47 59.00000 0.00000 100% - 1s 0 0 0.00000 0 47 59.00000 0.00000 100% - 1s 0 2 0.00000 0 47 59.00000 0.00000 100% - 1s H 42 42 34.0000000 3.68000 89.2% 28.6 1s * 42 40 23 33.0000000 3.68000 88.8% 28.7 1s H 136 99 31.0000000 4.70000 84.8% 27.9 1s H 352 171 30.0000000 10.61538 64.6% 29.2 1s * 1873 418 47 29.0000000 18.47619 36.3% 26.0 3s 3848 147 26.00000 42 158 29.00000 25.50000 12.1% 21.4 5s Explored 4059 nodes (85247 simplex iterations) in 5.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%