Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:03:00 2012 Optimize a model with 1 rows, 26 columns and 26 nonzeros Model has 159 quadratic objective terms Modified 26 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 26 columns, 26 nonzeros Presolved model has 185 quadratic objective terms Variable types: 0 continuous, 26 integer (26 binary) Found heuristic solution: objective 83.0000000 Root relaxation: objective 0.000000e+00, 27 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 26 83.00000 0.00000 100% - 0s H 0 0 82.0000000 0.00000 100% - 0s H 0 0 78.0000000 0.00000 100% - 0s H 0 0 75.0000000 0.00000 100% - 0s 0 2 3.35721 0 26 75.00000 3.35721 95.5% - 0s H 36 36 74.0000000 7.26452 90.2% 1.9 0s H 42 40 73.0000000 7.26452 90.0% 2.0 0s H 58 46 70.0000000 7.28360 89.6% 1.9 0s H 95 72 67.0000000 10.97382 83.6% 2.0 0s H 156 121 65.0000000 11.00235 83.1% 2.0 0s H 874 508 64.0000000 17.11971 73.3% 2.1 0s * 1105 553 30 63.0000000 20.11358 68.1% 2.1 0s H 1304 566 62.0000000 22.83093 63.2% 2.1 0s 87811 16591 58.36247 26 11 62.00000 51.05007 17.7% 2.0 5s 176734 3667 58.30222 29 8 62.00000 58.30222 5.96% 2.0 10s Explored 182375 nodes (368773 simplex iterations) in 10.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.200000000000e+01, best bound 6.200000000000e+01, gap 0.0%