Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:45:26 2013 Optimize a model with 1000 rows, 26050 columns and 53350 nonzeros Presolve removed 50 rows and 350 columns Presolve time: 0.21s Presolved: 950 rows, 25700 columns, 52850 nonzeros Variable types: 25550 continuous, 150 integer (150 binary) Root relaxation: objective 2.208160e+05, 1907 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 220815.985 0 4 - 220815.985 - - 0s H 0 0 243352.68555 220815.985 9.26% - 0s 0 0 220898.913 0 2 243352.686 220898.913 9.23% - 0s 0 0 220942.997 0 3 243352.686 220942.997 9.21% - 0s 0 0 220946.662 0 3 243352.686 220946.662 9.21% - 0s 0 0 220948.511 0 3 243352.686 220948.511 9.21% - 0s 0 0 220950.514 0 3 243352.686 220950.514 9.21% - 1s 0 0 220955.740 0 3 243352.686 220955.740 9.20% - 1s 0 0 220955.740 0 3 243352.686 220955.740 9.20% - 1s 0 0 220956.175 0 3 243352.686 220956.175 9.20% - 1s 0 0 220958.197 0 3 243352.686 220958.197 9.20% - 1s 0 0 220958.849 0 3 243352.686 220958.849 9.20% - 1s 0 0 220960.807 0 3 243352.686 220960.807 9.20% - 1s 0 0 220962.070 0 3 243352.686 220962.070 9.20% - 1s 0 0 220963.288 0 3 243352.686 220963.288 9.20% - 1s 0 0 220964.103 0 3 243352.686 220964.103 9.20% - 1s 0 0 220964.190 0 3 243352.686 220964.190 9.20% - 1s 0 0 220965.831 0 3 243352.686 220965.831 9.20% - 2s 0 0 220967.369 0 3 243352.686 220967.369 9.20% - 2s 0 0 220970.681 0 3 243352.686 220970.681 9.20% - 2s 0 0 220971.432 0 3 243352.686 220971.432 9.20% - 2s 0 0 220971.680 0 3 243352.686 220971.680 9.20% - 2s 0 0 220971.680 0 3 243352.686 220971.680 9.20% - 2s 0 0 220971.680 0 3 243352.686 220971.680 9.20% - 2s 0 0 220971.680 0 3 243352.686 220971.680 9.20% - 2s 0 2 220973.022 0 3 243352.686 220973.022 9.20% - 2s * 15 7 14 221466.25414 221156.485 0.14% 32.5 3s Cutting planes: Flow cover: 17 Explored 25 nodes (3771 simplex iterations) in 3.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.214662541417e+05, best bound 2.214662541417e+05, gap 0.0%