Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:04:17 2012 Optimize a model with 305 rows, 209 columns and 969 nonzeros Presolve time: 0.00s Presolved: 305 rows, 209 columns, 969 nonzeros Variable types: 0 continuous, 209 integer (209 binary) Found heuristic solution: objective 78.0000000 Found heuristic solution: objective 67.0000000 Root relaxation: objective 0.000000e+00, 95 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 56 67.00000 0.00000 100% - 0s H 0 0 64.0000000 0.00000 100% - 0s 0 0 0.56250 0 57 64.00000 0.56250 99.1% - 0s H 0 0 62.0000000 0.56250 99.1% - 0s 0 0 1.25357 0 58 62.00000 1.25357 98.0% - 0s H 0 0 61.0000000 1.25357 97.9% - 0s 0 0 1.48730 0 59 61.00000 1.48730 97.6% - 0s H 0 0 60.0000000 1.48730 97.5% - 0s 0 0 1.53257 0 65 60.00000 1.53257 97.4% - 0s H 0 0 56.0000000 1.53257 97.3% - 0s 0 0 1.53257 0 65 56.00000 1.53257 97.3% - 0s H 0 0 51.0000000 1.53257 97.0% - 0s 0 2 1.56922 0 65 51.00000 1.56922 96.9% - 0s * 43 43 24 47.0000000 3.89546 91.7% 27.7 0s * 51 42 25 46.0000000 3.89546 91.5% 24.3 0s H 54 32 42.0000000 3.89546 90.7% 23.0 0s H 81 53 38.0000000 4.00100 89.5% 26.1 0s * 191 124 18 37.0000000 10.60677 71.3% 27.5 0s * 224 153 15 36.0000000 10.64708 70.4% 27.7 0s * 247 154 16 35.0000000 10.64898 69.6% 26.7 0s * 862 251 22 34.0000000 17.70588 47.9% 25.2 0s Explored 1985 nodes (47254 simplex iterations) in 1.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%