current bounds on the number of colors: 0 -- 23

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:21 2012

Optimize a model with 188 rows, 268 columns and 748 nonzeros
Presolve removed 7 rows and 77 columns
Presolve time: 0.00s
Presolved: 181 rows, 191 columns, 671 nonzeros
Variable types: 0 continuous, 191 integer (191 binary)

Root relaxation: objective 0.000000e+00, 26 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 (26 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 Fri Dec 14 18:19:21 2012

Optimize a model with 98 rows, 130 columns and 340 nonzeros
Presolve removed 7 rows and 35 columns
Presolve time: 0.00s
Presolved: 91 rows, 95 columns, 305 nonzeros
Variable types: 0 continuous, 95 integer (95 binary)

Root relaxation: objective 0.000000e+00, 28 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 (28 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 18:19:21 2012

Optimize a model with 53 rows, 61 columns and 136 nonzeros
Presolve removed 25 rows and 33 columns
Presolve time: 0.00s
Presolved: 28 rows, 28 columns, 84 nonzeros
Variable types: 0 continuous, 28 integer (28 binary)

Root relaxation: objective 0.000000e+00, 8 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 (8 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 18:19:21 2012

Optimize a model with 38 rows, 38 columns and 68 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