Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:04 2012 Optimize a model with 1 rows, 34 columns and 34 nonzeros Model has 66 quadratic objective terms Presolve time: 0.00s Presolved: 67 rows, 100 columns, 232 nonzeros Variable types: 0 continuous, 100 integer (100 binary) Found heuristic solution: objective 33.0000000 Found heuristic solution: objective 31.0000000 Root relaxation: objective 0.000000e+00, 82 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 27 31.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 36 26.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.00000 0 26 21.00000 0.00000 100% - 0s 0 0 0.00000 0 19 21.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 18.00000 0.00000 100% - 0s 0 0 0.00000 0 21 18.00000 0.00000 100% - 0s 0 2 0.00000 0 21 18.00000 0.00000 100% - 0s H 146 85 17.0000000 1.00000 94.1% 6.9 0s * 170 83 11 16.0000000 1.00000 93.8% 7.5 0s H 202 86 15.0000000 1.00000 93.3% 8.4 0s * 285 85 11 14.0000000 2.00000 85.7% 10.7 0s * 371 25 7 12.0000000 8.00000 33.3% 13.7 0s Cutting planes: Cover: 124 MIR: 4 Explored 404 nodes (5671 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%