Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:11:34 2013 Optimize a model with 25600 rows, 25100 columns and 100100 nonzeros Presolve removed 50 rows and 0 columns Presolve time: 0.11s Presolved: 25550 rows, 25100 columns, 100050 nonzeros Variable types: 25050 continuous, 50 integer (50 binary) Root relaxation: objective 4.556724e+04, 3642 iterations, 1.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 45567.2403 0 42 - 45567.2403 - - 1s H 0 0 62304.000000 45567.2403 26.9% - 1s 0 0 53656.2379 0 11 62304.0000 53656.2379 13.9% - 3s H 0 0 61874.204157 53656.2379 13.3% - 3s H 0 0 58391.000000 53656.2379 8.11% - 3s 0 0 54426.6358 0 5 58391.0000 54426.6358 6.79% - 4s H 0 0 57464.000000 54426.6358 5.29% - 4s 0 0 54454.2531 0 5 57464.0000 54454.2531 5.24% - 4s H 0 0 57185.000000 54454.2531 4.78% - 4s H 0 0 54953.000000 54454.2531 0.91% - 4s 0 2 54471.8436 0 4 54953.0000 54471.8436 0.88% - 4s 3 4 54625.8407 3 3 54953.0000 54517.4937 0.79% 180 5s H 5 4 54816.571429 54517.4937 0.55% 145 5s H 6 4 54742.000000 54517.4937 0.41% 138 5s H 9 4 54733.964286 54517.4937 0.40% 108 5s H 15 1 54668.444444 54624.1595 0.08% 93.6 5s * 17 1 5 54659.000000 54624.1595 0.06% 89.4 5s Cutting planes: Implied bound: 48 MIR: 1 Explored 19 nodes (8155 simplex iterations) in 5.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.465900000000e+04, best bound 5.465900000000e+04, gap 0.0%