current bounds on the number of colors: 0 -- 6
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:55:52 2012
Optimize a model with 39 rows, 29 columns and 117 nonzeros
Presolve time: 0.00s
Presolved: 39 rows, 29 columns, 117 nonzeros
Variable types: 0 continuous, 29 integer (29 binary)
Root relaxation: objective 0.000000e+00, 13 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (21 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 3
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:55:52 2012
Optimize a model with 17 rows, 17 columns and 39 nonzeros
Presolve removed 17 rows and 17 columns
Presolve time: 0.00s
Explored 0 nodes (0 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound -, gap -
current bounds on the number of colors: 1 -- 3
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:55:52 2012
Optimize a model with 28 rows, 23 columns and 78 nonzeros
Presolve removed 6 rows and 6 columns
Presolve time: 0.00s
Presolved: 22 rows, 17 columns, 66 nonzeros
Variable types: 0 continuous, 17 integer (17 binary)
Root relaxation: objective 0.000000e+00, 7 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 6 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (16 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -
optimal solution found: number of colors: 3