Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:48 2013 Optimize a model with 220 rows, 1170 columns and 2760 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 210 rows, 1160 columns, 2650 nonzeros Variable types: 1120 continuous, 40 integer (40 binary) Root relaxation: objective 2.207062e+04, 169 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 22070.6191 0 3 - 22070.6191 - - 0s 0 0 22073.7352 0 4 - 22073.7352 - - 0s 0 0 22076.4570 0 3 - 22076.4570 - - 0s 0 0 22079.4831 0 3 - 22079.4831 - - 0s 0 0 22079.4831 0 3 - 22079.4831 - - 0s 0 0 22079.4831 0 3 - 22079.4831 - - 0s 0 0 22237.3867 0 3 - 22237.3867 - - 0s 0 0 22305.0428 0 2 - 22305.0428 - - 0s 0 0 22305.0428 0 2 - 22305.0428 - - 0s H 0 0 23427.439507 22305.0428 4.79% - 0s 0 2 22305.0428 0 2 23427.4395 22305.0428 4.79% - 0s * 5 4 4 22336.145036 22332.0325 0.02% 13.0 0s * 7 1 3 22332.689075 22332.0325 0.00% 9.4 0s Explored 8 nodes (526 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.233268907504e+04, best bound 2.233203253014e+04, gap 0.0029%