Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:10:14 2012 Optimize a model with 481 rows, 447 columns and 1647 nonzeros Presolve removed 0 rows and 14 columns Presolve time: 0.00s Presolved: 481 rows, 433 columns, 1633 nonzeros Variable types: 0 continuous, 433 integer (432 binary) Found heuristic solution: objective 94.0000000 Root relaxation: objective 0.000000e+00, 261 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 0 188 94.00000 0.00000 100% - 0s H 0 0 83.0000000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s 0 0 0.30329 0 190 65.00000 0.30329 100% - 0s H 0 0 55.0000000 0.30329 99.4% - 0s 0 0 0.75988 0 192 55.00000 0.75988 98.6% - 0s H 0 0 39.0000000 0.75988 98.1% - 0s 0 0 0.75988 0 192 39.00000 0.75988 98.1% - 0s H 0 0 35.0000000 0.75988 97.8% - 0s 0 2 0.76105 0 192 35.00000 0.76105 97.8% - 0s * 46 38 30 20.0000000 1.00000 95.0% 31.2 0s * 92 66 34 18.0000000 1.00000 94.4% 30.4 0s * 96 40 36 17.0000000 1.00000 94.1% 29.4 0s H 121 57 16.0000000 1.00000 93.8% 30.8 0s H 132 50 15.0000000 1.00000 93.3% 28.8 0s * 177 71 16 14.0000000 1.00000 92.9% 35.3 0s * 480 87 14 13.0000000 6.43750 50.5% 32.0 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 743 nodes (25484 simplex iterations) in 0.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%