Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:44:27 2013 Optimize a model with 693 rows, 39753 columns and 79443 nonzeros Presolve time: 0.06s Presolved: 693 rows, 39753 columns, 79443 nonzeros Variable types: 39690 continuous, 63 integer (63 binary) Root relaxation: objective 8.449577e+04, 1703 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 84495.7671 0 10 - 84495.7671 - - 0s H 0 0 88083.000000 84495.7671 4.07% - 0s H 0 0 85090.000000 84495.7671 0.70% - 0s 0 0 84862.6309 0 8 85090.0000 84862.6309 0.27% - 0s 0 0 84895.2006 0 9 85090.0000 84895.2006 0.23% - 0s 0 0 84952.8511 0 6 85090.0000 84952.8511 0.16% - 0s 0 0 84955.2389 0 4 85090.0000 84955.2389 0.16% - 0s 0 0 84955.2389 0 10 85090.0000 84955.2389 0.16% - 0s 0 0 84955.2389 0 8 85090.0000 84955.2389 0.16% - 0s 0 0 84955.2389 0 9 85090.0000 84955.2389 0.16% - 0s 0 0 84955.2389 0 6 85090.0000 84955.2389 0.16% - 0s 0 0 84955.2389 0 4 85090.0000 84955.2389 0.16% - 0s 0 0 84955.2389 0 4 85090.0000 84955.2389 0.16% - 0s 0 0 84955.5416 0 4 85090.0000 84955.5416 0.16% - 0s 0 0 84955.5463 0 4 85090.0000 84955.5463 0.16% - 1s 0 0 84955.8995 0 3 85090.0000 84955.8995 0.16% - 1s 0 2 84965.4961 0 3 85090.0000 84965.4961 0.15% - 1s * 3 3 3 85019.000000 84975.0183 0.05% 57.7 1s Cutting planes: Implied bound: 89 Flow cover: 4 Explored 5 nodes (3854 simplex iterations) in 1.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.501900000000e+04, best bound 8.501900000000e+04, gap 0.0%