Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:28:59 2012 Optimize a model with 156 rows, 361 columns and 361 nonzeros Model has 310 quadratic constraints Presolve time: 1.81s Presolved: 156 rows, 361 columns, 361 nonzeros Variable types: 310 continuous, 51 integer (51 binary) Root relaxation: objective 0.000000e+00, 25 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 81.0000000 - - - 1s 0 0 0.00000 0 30 81.00000 0.00000 100% - 1s 0 0 0.10515 0 48 81.00000 0.10515 100% - 1s 0 2 0.12987 0 48 81.00000 0.12987 100% - 1s * 42 42 22 42.0000000 5.87500 86.0% 29.2 1s H 107 80 38.0000000 6.76496 82.2% 28.2 1s * 109 76 18 37.0000000 6.76496 81.7% 28.2 1s 2386 470 31.59462 31 231 37.00000 25.80495 30.3% 27.4 5s Explored 5336 nodes (114352 simplex iterations) in 7.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%