Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:47 2012 Optimize a model with 113 rows, 88 columns and 368 nonzeros Presolve time: 0.00s Presolved: 113 rows, 88 columns, 368 nonzeros Variable types: 0 continuous, 88 integer (88 binary) Found heuristic solution: objective 26.0000000 Root relaxation: objective 0.000000e+00, 47 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 31 26.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.51843 0 32 19.00000 0.51843 97.3% - 0s H 0 0 18.0000000 0.51843 97.1% - 0s 0 0 1.00000 0 32 18.00000 1.00000 94.4% - 0s 0 0 1.00000 0 32 18.00000 1.00000 94.4% - 0s H 0 0 15.0000000 1.00000 93.3% - 0s H 0 0 14.0000000 1.00000 92.9% - 0s 0 2 1.00000 0 32 14.00000 1.00000 92.9% - 0s * 18 13 10 12.0000000 2.96333 75.3% 22.4 0s Cutting planes: Gomory: 3 Zero half: 10 Explored 144 nodes (2054 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%