current bounds on the number of colors: 0 -- 11

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:13 2012

Optimize a model with 21 rows, 57 columns and 85 nonzeros
Presolve removed 8 rows and 40 columns
Presolve time: 0.00s
Presolved: 13 rows, 17 columns, 45 nonzeros
Variable types: 0 continuous, 17 integer (17 binary)

Root relaxation: objective 0.000000e+00, 5 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 (5 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 -- 5

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:13 2012

Optimize a model with 15 rows, 24 columns and 34 nonzeros
Presolve removed 11 rows and 19 columns
Presolve time: 0.00s
Presolved: 4 rows, 5 columns, 12 nonzeros
Variable types: 0 continuous, 5 integer (5 binary)

Root relaxation: objective 0.000000e+00, 2 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 (2 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 -- 2

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:13 2012

Optimize a model with 13 rows, 13 columns and 17 nonzeros
Presolve removed 13 rows and 13 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 -


optimal solution found: number of colors: 2