Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:27 2012 Optimize a model with 130 rows, 413 columns and 413 nonzeros Model has 258 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 1.50s Presolved: 130 rows, 387 columns, 387 nonzeros Variable types: 258 continuous, 129 integer (128 binary) Root relaxation: objective 0.000000e+00, 47 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 64.0000000 - - - 1s 0 0 0.00000 0 2 64.00000 0.00000 100% - 1s 0 0 0.00000 0 2 64.00000 0.00000 100% - 1s 0 0 0.00000 0 2 64.00000 0.00000 100% - 1s 0 2 0.00000 0 12 64.00000 0.00000 100% - 1s * 40 36 25 6.0000000 0.00000 100% 27.2 1s H 48 36 6.0000000 0.00000 100% 27.4 1s * 51 29 9 5.0000000 0.00000 100% 27.6 1s * 128 26 14 4.0000000 1.53488 61.6% 18.7 1s Cutting planes: Explored 200 nodes (3951 simplex iterations) in 1.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%