Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:04:22 2012 Optimize a model with 125 rows, 297 columns and 297 nonzeros Model has 248 quadratic constraints Presolve time: 1.44s Presolved: 125 rows, 297 columns, 297 nonzeros Variable types: 248 continuous, 49 integer (49 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 14 59.00000 0.00000 100% - 1s 0 0 0.00000 0 16 59.00000 0.00000 100% - 1s 0 0 0.00000 0 44 59.00000 0.00000 100% - 1s 0 2 0.00000 0 44 59.00000 0.00000 100% - 1s H 42 42 35.0000000 4.74074 86.5% 32.5 1s * 44 43 24 34.0000000 4.74074 86.1% 32.3 1s * 97 78 16 31.0000000 4.92638 84.1% 30.4 1s * 116 67 11 27.0000000 5.38636 80.1% 31.0 1s * 172 80 12 25.0000000 9.50000 62.0% 32.1 1s Cutting planes: Explored 684 nodes (19436 simplex iterations) in 1.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%