Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:24:23 2012 Optimize a model with 213 rows, 248 columns and 778 nonzeros Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 213 rows, 220 columns, 750 nonzeros Variable types: 0 continuous, 220 integer (219 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 141 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 86 32.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 87 12.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 86 9.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 86 5.00000 0.00000 100% - 0s H 28 11 4.0000000 0.55556 86.1% 15.3 0s * 53 13 19 3.0000000 0.88235 70.6% 15.2 0s H 57 3 2.0000000 0.88235 55.9% 14.2 0s Cutting planes: Gomory: 1 Explored 61 nodes (1579 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%