Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:51:43 2013 Optimize a model with 85744 rows, 84824 columns and 338744 nonzeros Presolve removed 92 rows and 0 columns Presolve time: 0.42s Presolved: 85652 rows, 84824 columns, 338652 nonzeros Variable types: 84732 continuous, 92 integer (92 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 9526 8.1096122e+04 2.799262e+05 0.000000e+00 5s 11186 8.2291631e+04 1.080911e+05 0.000000e+00 10s 12846 8.2947524e+04 6.457126e+02 0.000000e+00 15s 13402 8.2990479e+04 0.000000e+00 0.000000e+00 17s Root relaxation: objective 8.299048e+04, 13402 iterations, 16.72 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 82990.4787 0 70 - 82990.4787 - - 17s H 0 0 171253.00000 82990.4787 51.5% - 29s 0 0 112378.468 0 20 171253.000 112378.468 34.4% - 52s H 0 0 143941.00000 112378.468 21.9% - 54s 0 0 122758.117 0 8 143941.000 122758.117 14.7% - 59s H 0 0 134772.00000 122758.117 8.91% - 60s 0 0 123287.445 0 2 134772.000 123287.445 8.52% - 61s H 0 0 127948.86274 123287.445 3.64% - 61s H 0 0 127549.00000 123287.445 3.34% - 61s H 0 0 125467.00000 123287.445 1.74% - 63s 0 2 123289.287 0 2 125467.000 123289.287 1.74% - 63s H 1 1 123937.57198 123289.287 0.52% 0.0 64s H 2 2 123327.11111 123303.839 0.02% 90.0 64s * 3 2 3 123315.00000 123306.162 0.01% 160 64s Cutting planes: Implied bound: 91 Explored 4 nodes (30572 simplex iterations) in 64.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.233150000000e+05, best bound 1.233061621622e+05, gap 0.0072%