Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:33:22 2012 Optimize a model with 126 rows, 327 columns and 327 nonzeros Model has 250 quadratic constraints Presolve time: 1.46s Presolved: 126 rows, 327 columns, 327 nonzeros Variable types: 250 continuous, 77 integer (77 binary) Root relaxation: objective 0.000000e+00, 38 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 61.0000000 - - - 1s 0 0 0.00000 0 3 61.00000 0.00000 100% - 1s 0 0 0.00000 0 64 61.00000 0.00000 100% - 1s 0 0 0.00000 0 62 61.00000 0.00000 100% - 1s 0 2 0.00000 0 62 61.00000 0.00000 100% - 1s H 27 27 27.0000000 3.50000 87.0% 32.4 1s * 32 29 20 21.0000000 3.50000 83.3% 31.5 1s H 54 38 18.0000000 4.34146 75.9% 26.9 1s * 54 36 14 17.0000000 4.34146 74.5% 27.2 1s H 144 76 16.0000000 6.00000 62.5% 25.7 1s * 755 4 10 15.0000000 14.89655 0.69% 21.7 1s Cutting planes: Explored 760 nodes (17037 simplex iterations) in 1.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%