Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:59 2012 Optimize a model with 211 rows, 175 columns and 700 nonzeros Presolve removed 0 rows and 5 columns Presolve time: 0.00s Presolved: 211 rows, 170 columns, 695 nonzeros Variable types: 0 continuous, 170 integer (169 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 0.000000e+00, 92 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 64 44.00000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s 0 0 0.38141 0 66 32.00000 0.38141 98.8% - 0s H 0 0 29.0000000 0.38141 98.7% - 0s 0 0 0.84552 0 68 29.00000 0.84552 97.1% - 0s 0 0 0.84552 0 68 29.00000 0.84552 97.1% - 0s H 0 0 27.0000000 0.84552 96.9% - 0s H 0 0 24.0000000 0.84552 96.5% - 0s 0 2 0.85890 0 68 24.00000 0.85890 96.4% - 0s * 20 18 12 14.0000000 2.63284 81.2% 34.0 0s * 71 24 13 13.0000000 5.00180 61.5% 19.9 0s H 81 24 12.0000000 6.10653 49.1% 19.9 0s Cutting planes: Gomory: 4 Explored 183 nodes (3291 simplex iterations) in 0.17 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%