Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:31 2012 Optimize a model with 1 rows, 59 columns and 59 nonzeros Model has 95 quadratic objective terms Presolve time: 0.00s Presolved: 96 rows, 154 columns, 344 nonzeros Variable types: 0 continuous, 154 integer (154 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 0.000000e+00, 121 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 34 44.00000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s 0 0 0.00000 0 53 34.00000 0.00000 100% - 0s H 0 0 33.0000000 0.00000 100% - 0s 0 0 0.00000 0 28 33.00000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.00000 0 32 24.00000 0.00000 100% - 0s 0 0 0.00000 0 25 24.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s 0 2 0.00000 0 25 22.00000 0.00000 100% - 0s H 126 99 21.0000000 0.00000 100% 6.8 0s H 235 156 18.0000000 0.00000 100% 7.2 0s H 273 161 17.0000000 0.28571 98.3% 8.7 0s * 277 150 17 16.0000000 0.28571 98.2% 8.7 0s * 448 142 12 15.0000000 3.50000 76.7% 15.6 0s Cutting planes: Gomory: 1 Cover: 186 MIR: 8 Zero half: 4 Explored 752 nodes (14634 simplex iterations) in 0.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%