Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:59:53 2012 Optimize a model with 1 rows, 25 columns and 25 nonzeros Model has 148 quadratic objective terms Modified 25 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 25 columns, 25 nonzeros Presolved model has 173 quadratic objective terms Variable types: 0 continuous, 25 integer (25 binary) Found heuristic solution: objective 79.0000000 Root relaxation: objective 0.000000e+00, 26 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 25 79.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 58.0000000 0.00000 100% - 0s 0 2 2.12395 0 25 58.00000 2.12395 96.3% - 0s H 765 479 57.0000000 14.87328 73.9% 2.1 0s 91299 5630 55.49010 27 10 57.00000 50.27755 11.8% 2.0 5s Explored 107808 nodes (221607 simplex iterations) in 5.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.700000000000e+01, best bound 5.700000000000e+01, gap 0.0%