Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:31:25 2013 Optimize a model with 35518 rows, 34928 columns and 139358 nonzeros Presolve removed 59 rows and 0 columns Presolve time: 0.15s Presolved: 35459 rows, 34928 columns, 139299 nonzeros Variable types: 34869 continuous, 59 integer (59 binary) Root relaxation: objective 4.948525e+04, 4547 iterations, 2.19 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 49485.2464 0 48 - 49485.2464 - - 2s H 0 0 67414.000000 49485.2464 26.6% - 3s 0 0 59326.8294 0 12 67414.0000 59326.8294 12.0% - 5s H 0 0 63405.843843 59326.8294 6.43% - 5s H 0 0 60891.000000 59326.8294 2.57% - 5s H 0 0 59784.000000 59326.8294 0.76% - 6s 0 0 59765.0014 0 4 59784.0000 59765.0014 0.03% - 6s 0 0 cutoff 0 59784.0000 59784.0000 0.0% - 6s Cutting planes: Implied bound: 52 Explored 0 nodes (7576 simplex iterations) in 6.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.978400000000e+04, best bound 5.978400000000e+04, gap 0.0%