current bounds on the number of colors: 0 -- 22

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:12:50 2012

Optimize a model with 33 rows, 243 columns and 275 nonzeros
Presolve removed 20 rows and 220 columns
Presolve time: 0.00s
Presolved: 13 rows, 23 columns, 55 nonzeros
Variable types: 0 continuous, 23 integer (23 binary)

Root relaxation: objective 0.000000e+00, 3 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 (3 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 -- 11

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:12:50 2012

Optimize a model with 27 rows, 111 columns and 125 nonzeros
Presolve removed 20 rows and 100 columns
Presolve time: 0.00s
Presolved: 7 rows, 11 columns, 25 nonzeros
Variable types: 0 continuous, 11 integer (11 binary)

Root relaxation: objective 0.000000e+00, 3 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 (3 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 Sat Dec 15 16:12:50 2012

Optimize a model with 24 rows, 45 columns and 50 nonzeros
Presolve removed 24 rows and 45 columns
Presolve time: 0.00s

Explored 0 nodes (0 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 Sat Dec 15 16:12:50 2012

Optimize a model with 23 rows, 23 columns and 25 nonzeros
Presolve removed 23 rows and 23 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