Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:47:09 2012 Optimize a model with 132 rows, 308 columns and 308 nonzeros Model has 262 quadratic constraints Presolve time: 1.53s Presolved: 132 rows, 308 columns, 308 nonzeros Variable types: 262 continuous, 46 integer (46 binary) Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 67.0000000 - - - 1s 0 0 0.00000 0 14 67.00000 0.00000 100% - 1s 0 0 0.00000 0 17 67.00000 0.00000 100% - 1s 0 0 0.00000 0 46 67.00000 0.00000 100% - 1s 0 2 0.00000 0 46 67.00000 0.00000 100% - 1s * 43 39 24 38.0000000 6.17647 83.7% 36.4 1s * 69 52 15 34.0000000 6.27273 81.6% 34.5 1s H 82 43 33.0000000 6.27273 81.0% 29.7 1s * 373 120 8 32.0000000 16.29167 49.1% 31.7 1s * 528 113 17 31.0000000 21.09091 32.0% 31.7 1s * 538 90 12 30.0000000 21.09091 29.7% 31.3 1s Cutting planes: Explored 781 nodes (23257 simplex iterations) in 2.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%