Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:13 2013 Optimize a model with 1120 rows, 1020 columns and 4020 nonzeros Presolve removed 10 rows and 0 columns Presolve time: 0.00s Presolved: 1110 rows, 1020 columns, 4010 nonzeros Variable types: 1010 continuous, 10 integer (10 binary) Root relaxation: objective 1.557309e+04, 205 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15573.0898 0 4 - 15573.0898 - - 0s H 0 0 15792.000000 15573.0898 1.39% - 0s H 0 0 15790.000000 15573.0898 1.37% - 0s 0 0 15786.6667 0 1 15790.0000 15786.6667 0.02% - 0s Cutting planes: Implied bound: 4 Explored 0 nodes (261 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.579000000000e+04, best bound 1.579000000000e+04, gap 0.0%