Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:14:00 2012 Optimize a model with 473 rows, 446 columns and 1626 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 473 rows, 428 columns, 1608 nonzeros Variable types: 0 continuous, 428 integer (427 binary) Found heuristic solution: objective 94.0000000 Root relaxation: objective 0.000000e+00, 250 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 0 184 94.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s 0 0 0.62932 0 188 62.00000 0.62932 99.0% - 0s H 0 0 52.0000000 0.62932 98.8% - 0s 0 0 0.89339 0 192 52.00000 0.89339 98.3% - 0s H 0 0 47.0000000 0.89339 98.1% - 0s 0 0 0.89388 0 192 47.00000 0.89388 98.1% - 0s 0 0 0.89388 0 192 47.00000 0.89388 98.1% - 0s H 0 0 46.0000000 0.89388 98.1% - 0s H 0 0 44.0000000 0.89388 98.0% - 0s H 0 0 31.0000000 0.89388 97.1% - 0s 0 2 0.89415 0 192 31.00000 0.89415 97.1% - 0s * 44 44 24 16.0000000 1.00000 93.8% 30.1 0s * 216 125 16 15.0000000 2.38693 84.1% 35.5 0s * 1287 72 14 14.0000000 10.28846 26.5% 32.3 1s Cutting planes: Gomory: 3 Zero half: 4 Explored 1426 nodes (44770 simplex iterations) in 1.81 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%