Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:30 2012 Optimize a model with 1 rows, 33 columns and 33 nonzeros Model has 25 quadratic objective terms Presolve removed 0 rows and 7 columns Presolve time: 0.00s Presolved: 26 rows, 51 columns, 101 nonzeros Variable types: 0 continuous, 51 integer (50 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 0.000000e+00, 33 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 5 7.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 9 4.00000 0.00000 100% - 0s 0 0 0.00000 0 4 4.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.00000 0 3 3.00000 0.00000 100% - 0s 0 0 0.00000 0 4 3.00000 0.00000 100% - 0s 0 0 0.00000 0 4 3.00000 0.00000 100% - 0s 0 2 0.00000 0 4 3.00000 0.00000 100% - 0s * 11 6 7 2.0000000 0.00000 100% 3.2 0s * 57 3 7 1.0000000 0.00000 100% 4.4 0s Cutting planes: Cover: 32 MIR: 1 Explored 58 nodes (356 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%