Gurobi 5.0.1 (linux64) logging started Fri Nov 16 08:29:22 2012 Optimize a model with 14400 rows, 4160 columns and 47104 nonzeros Presolve time: 0.12s Presolved: 14400 rows, 4160 columns, 47300 nonzeros Variable types: 0 continuous, 4160 integer (4160 binary) Found heuristic solution: objective 40.0000000 Root relaxation: objective 2.000000e+00, 7250 iterations, 1.16 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 128 40.00000 2.00000 95.0% - 3s H 0 0 16.0000000 2.00000 87.5% - 3s H 0 0 5.0000000 2.00000 60.0% - 3s 0 0 2.00000 0 128 5.00000 2.00000 60.0% - 4s 0 0 2.00000 0 128 5.00000 2.00000 60.0% - 9s 0 0 2.00000 0 128 5.00000 2.00000 60.0% - 15s 0 0 2.00000 0 128 5.00000 2.00000 60.0% - 20s 0 0 2.00000 0 128 5.00000 2.00000 60.0% - 27s 0 0 2.00000 0 128 5.00000 2.00000 60.0% - 32s 0 2 2.00000 0 128 5.00000 2.00000 60.0% - 61s 1 3 3.00000 1 1010 5.00000 2.00000 60.0% 38517 76s 2 4 3.00000 1 622 5.00000 3.00000 40.0% 35406 90s 6 6 3.08333 3 482 5.00000 3.00000 40.0% 14565 96s H 27 6 4.0000000 3.00000 25.0% 3476 98s 33 2 infeasible 3 4.00000 3.00000 25.0% 3003 100s 37 2 cutoff 5 4.00000 3.00000 25.0% 3298 107s 39 2 3.00000 2 722 4.00000 3.00000 25.0% 3316 110s Cutting planes: Clique: 141 Explored 46 nodes (212747 simplex iterations) in 113.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%