Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:54:34 2012 Optimize a model with 325 rows, 216 columns and 1026 nonzeros Presolve time: 0.00s Presolved: 325 rows, 216 columns, 1026 nonzeros Variable types: 0 continuous, 216 integer (216 binary) Found heuristic solution: objective 82.0000000 Found heuristic solution: objective 78.0000000 Root relaxation: objective 0.000000e+00, 96 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 54 78.00000 0.00000 100% - 0s H 0 0 64.0000000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s 0 0 0.65385 0 56 63.00000 0.65385 99.0% - 0s 0 0 0.81818 0 57 63.00000 0.81818 98.7% - 0s 0 0 0.84496 0 59 63.00000 0.84496 98.7% - 0s 0 0 0.86154 0 61 63.00000 0.86154 98.6% - 0s H 0 0 60.0000000 0.86154 98.6% - 0s 0 0 0.92420 0 73 60.00000 0.92420 98.5% - 0s 0 0 0.97082 0 63 60.00000 0.97082 98.4% - 0s 0 0 0.98077 0 56 60.00000 0.98077 98.4% - 0s 0 0 1.00000 0 56 60.00000 1.00000 98.3% - 0s 0 0 1.00000 0 56 60.00000 1.00000 98.3% - 0s 0 0 1.00000 0 56 60.00000 1.00000 98.3% - 0s 0 2 1.18060 0 56 60.00000 1.18060 98.0% - 0s H 27 27 58.0000000 5.55615 90.4% 29.1 0s * 36 36 22 56.0000000 5.55615 90.1% 25.1 0s * 67 47 18 45.0000000 5.68427 87.4% 25.2 0s * 339 175 17 41.0000000 16.61111 59.5% 22.2 0s * 397 187 19 40.0000000 17.09302 57.3% 21.6 0s * 399 171 18 39.0000000 17.09302 56.2% 21.5 0s * 1441 224 31 38.0000000 21.45833 43.5% 23.1 1s Explored 4956 nodes (99119 simplex iterations) in 3.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%