Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:16:44 2012 Optimize a model with 315 rows, 216 columns and 1001 nonzeros Presolve time: 0.00s Presolved: 315 rows, 216 columns, 1001 nonzeros Variable types: 0 continuous, 216 integer (216 binary) Found heuristic solution: objective 74.0000000 Root relaxation: objective 0.000000e+00, 102 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 59 74.00000 0.00000 100% - 0s H 0 0 73.0000000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s 0 0 0.73308 0 64 62.00000 0.73308 98.8% - 0s H 0 0 53.0000000 0.73308 98.6% - 0s H 0 0 52.0000000 0.73308 98.6% - 0s 0 0 0.74163 0 80 52.00000 0.74163 98.6% - 0s 0 0 0.74518 0 61 52.00000 0.74518 98.6% - 0s 0 0 0.75395 0 61 52.00000 0.75395 98.6% - 0s 0 0 0.75395 0 61 52.00000 0.75395 98.6% - 0s 0 0 0.75395 0 61 52.00000 0.75395 98.6% - 0s 0 2 0.77990 0 61 52.00000 0.77990 98.5% - 0s H 11 11 44.0000000 5.13793 88.3% 42.2 0s * 125 82 16 40.0000000 9.60571 76.0% 26.2 0s * 175 119 19 39.0000000 12.31527 68.4% 25.8 0s * 297 146 21 38.0000000 12.44918 67.2% 23.5 0s * 334 139 12 37.0000000 13.52085 63.5% 23.1 0s * 564 197 19 36.0000000 18.37500 49.0% 22.0 0s H 603 196 35.0000000 19.03532 45.6% 21.7 0s H 886 229 34.0000000 20.51351 39.7% 22.3 0s Explored 2391 nodes (48429 simplex iterations) in 1.56 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%