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

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:12:51 2012

Optimize a model with 44 rows, 244 columns and 308 nonzeros
Presolve removed 18 rows and 198 columns
Presolve time: 0.00s
Presolved: 26 rows, 46 columns, 110 nonzeros
Variable types: 0 continuous, 46 integer (46 binary)

Root relaxation: objective 0.000000e+00, 6 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 (6 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 16:12:51 2012

Optimize a model with 32 rows, 112 columns and 140 nonzeros
Presolve removed 18 rows and 90 columns
Presolve time: 0.00s
Presolved: 14 rows, 22 columns, 50 nonzeros
Variable types: 0 continuous, 22 integer (22 binary)

Root relaxation: objective 0.000000e+00, 6 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 (6 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 16:12:51 2012

Optimize a model with 26 rows, 46 columns and 56 nonzeros
Presolve removed 26 rows and 46 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 16:12:51 2012

Optimize a model with 24 rows, 24 columns and 28 nonzeros
Presolve removed 24 rows and 24 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