Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:43 2012 Optimize a model with 1 rows, 22 columns and 22 nonzeros Model has 116 quadratic objective terms Modified 22 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 22 columns, 22 nonzeros Presolved model has 138 quadratic objective terms Variable types: 0 continuous, 22 integer (22 binary) Found heuristic solution: objective 59.0000000 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 0 0 0.00000 0 22 59.00000 0.00000 100% - 0s H 0 0 56.0000000 0.00000 100% - 0s H 0 0 51.0000000 0.00000 100% - 0s 0 2 2.58344 0 22 51.00000 2.58344 94.9% - 0s H 3 3 45.0000000 5.74069 87.2% 1.3 0s H 455 258 43.0000000 14.71641 65.8% 2.0 0s Explored 19659 nodes (40322 simplex iterations) in 0.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%