Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:31 2012 Optimize a model with 1 rows, 12 columns and 12 nonzeros Model has 8 quadratic objective terms Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 9 rows, 19 columns, 35 nonzeros Variable types: 0 continuous, 19 integer (18 binary) Found heuristic solution: objective 3.0000000 Root relaxation: objective 0.000000e+00, 10 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 2 3.00000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 0 0.00000 0 1 2.00000 0.00000 100% - 0s H 0 0 1.0000000 0.00000 100% - 0s 0 0 0.00000 0 1 1.00000 0.00000 100% - 0s 0 0 infeasible 0 1.00000 0.00000 100% - 0s Cutting planes: Cover: 2 Explored 0 nodes (20 simplex iterations) in 0.00 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%