Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:55:22 2012 Optimize a model with 417 rows, 397 columns and 1437 nonzeros Presolve removed 0 rows and 21 columns Presolve time: 0.00s Presolved: 417 rows, 376 columns, 1416 nonzeros Variable types: 0 continuous, 376 integer (375 binary) Found heuristic solution: objective 75.0000000 Root relaxation: objective 0.000000e+00, 233 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 0 154 75.00000 0.00000 100% - 0s H 0 0 56.0000000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s 0 0 0.33310 0 156 54.00000 0.33310 99.4% - 0s H 0 0 53.0000000 0.33310 99.4% - 0s 0 0 0.82355 0 162 53.00000 0.82355 98.4% - 0s H 0 0 50.0000000 0.82355 98.4% - 0s 0 0 0.82355 0 164 50.00000 0.82355 98.4% - 0s 0 0 0.82355 0 161 50.00000 0.82355 98.4% - 0s H 0 0 43.0000000 0.82355 98.1% - 0s 0 2 0.84092 0 161 43.00000 0.84092 98.0% - 0s H 27 27 34.0000000 1.00000 97.1% 39.0 0s * 39 37 21 17.0000000 1.00000 94.1% 36.8 0s * 74 49 21 16.0000000 1.00000 93.8% 33.6 0s * 211 114 24 15.0000000 3.40000 77.3% 30.6 0s * 1273 40 16 14.0000000 11.88312 15.1% 26.8 1s Cutting planes: Gomory: 3 Zero half: 1 Mod-K: 1 Explored 1321 nodes (35661 simplex iterations) in 1.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%