current bounds on the number of colors: 0 -- 20

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:35 2012

Optimize a model with 200 rows, 218 columns and 740 nonzeros
Presolve removed 3 rows and 30 columns
Presolve time: 0.00s
Presolved: 197 rows, 188 columns, 710 nonzeros
Variable types: 0 continuous, 188 integer (188 binary)

Root relaxation: objective 0.000000e+00, 31 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 (31 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 -- 10

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:35 2012

Optimize a model with 110 rows, 118 columns and 370 nonzeros
Presolve removed 3 rows and 15 columns
Presolve time: 0.00s
Presolved: 107 rows, 103 columns, 355 nonzeros
Variable types: 0 continuous, 103 integer (103 binary)

Root relaxation: objective 0.000000e+00, 29 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 (29 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 Thu Dec 13 19:35:35 2012

Optimize a model with 56 rows, 58 columns and 148 nonzeros
Presolve removed 20 rows and 23 columns
Presolve time: 0.00s
Presolved: 36 rows, 35 columns, 108 nonzeros
Variable types: 0 continuous, 35 integer (35 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 (13 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 Thu Dec 13 19:35:35 2012

Optimize a model with 38 rows, 38 columns and 74 nonzeros
Presolve removed 38 rows and 38 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