Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:06 2012 Optimize a model with 57 rows, 53 columns and 193 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 57 rows, 52 columns, 192 nonzeros Variable types: 0 continuous, 52 integer (51 binary) Found heuristic solution: objective 11.0000000 Root relaxation: objective 0.000000e+00, 31 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 23 11.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.68323 0 24 3.00000 0.68323 77.2% - 0s 0 0 1.08553 0 27 3.00000 1.08553 63.8% - 0s 0 0 cutoff 0 3.00000 2.00000 33.3% - 0s Cutting planes: Gomory: 3 Explored 0 nodes (134 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%