Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:09 2012 Optimize a model with 95 rows, 249 columns and 249 nonzeros Model has 188 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 1.10s Presolved: 95 rows, 247 columns, 247 nonzeros Variable types: 188 continuous, 59 integer (58 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 47.0000000 - - - 1s 0 0 0.00000 0 30 47.00000 0.00000 100% - 1s 0 0 0.00000 0 48 47.00000 0.00000 100% - 1s 0 0 0.00000 0 36 47.00000 0.00000 100% - 1s 0 2 0.00000 0 36 47.00000 0.00000 100% - 1s * 26 26 16 17.0000000 2.38235 86.0% 28.6 1s H 27 25 16.0000000 2.38235 85.1% 27.5 1s * 46 26 8 13.0000000 2.44681 81.2% 21.3 1s Cutting planes: Gomory: 1 Explored 298 nodes (7230 simplex iterations) in 1.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%