Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:36:39 2013 Optimize a model with 52704 rows, 51984 columns and 207504 nonzeros Presolve removed 72 rows and 0 columns Presolve time: 0.24s Presolved: 52632 rows, 51984 columns, 207432 nonzeros Variable types: 51912 continuous, 72 integer (72 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7943 7.0326064e+04 1.559243e+04 0.000000e+00 5s 9148 7.0761685e+04 0.000000e+00 0.000000e+00 7s Root relaxation: objective 7.076169e+04, 9148 iterations, 7.17 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 70761.6850 0 56 - 70761.6850 - - 7s H 0 0 123895.00000 70761.6850 42.9% - 12s 0 0 94690.6759 0 13 123895.000 94690.6759 23.6% - 20s H 0 0 110675.89413 94690.6759 14.4% - 20s H 0 0 104416.00000 94690.6759 9.31% - 20s 0 0 97561.9637 0 7 104416.000 97561.9637 6.56% - 23s H 0 0 103574.93321 97561.9637 5.81% - 23s H 0 0 100208.00000 97561.9637 2.64% - 23s 0 0 97628.5216 0 5 100208.000 97628.5216 2.57% - 23s H 0 0 99475.000000 97628.5216 1.86% - 23s H 0 0 98600.000000 97628.5216 0.99% - 24s 0 2 97644.1132 0 5 98600.0000 97644.1132 0.97% - 25s H 4 4 98172.634783 97699.9432 0.48% 105 25s * 6 3 5 97782.000000 97699.9432 0.08% 242 25s Cutting planes: Implied bound: 68 Explored 11 nodes (21030 simplex iterations) in 26.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.778200000000e+04, best bound 9.777775342466e+04, gap 0.0043%