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

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

Optimize a model with 150 rows, 213 columns and 590 nonzeros
Presolve removed 5 rows and 50 columns
Presolve time: 0.00s
Presolved: 145 rows, 163 columns, 540 nonzeros
Variable types: 0 continuous, 163 integer (163 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 -- 10

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

Optimize a model with 85 rows, 113 columns and 295 nonzeros
Presolve removed 5 rows and 25 columns
Presolve time: 0.00s
Presolved: 80 rows, 88 columns, 270 nonzeros
Variable types: 0 continuous, 88 integer (88 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 -- 5

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

Optimize a model with 46 rows, 53 columns and 118 nonzeros
Presolve removed 20 rows and 25 columns
Presolve time: 0.00s
Presolved: 26 rows, 28 columns, 78 nonzeros
Variable types: 0 continuous, 28 integer (28 binary)

Root relaxation: objective 0.000000e+00, 9 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 (9 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 18:19:19 2012

Optimize a model with 33 rows, 33 columns and 59 nonzeros
Presolve removed 33 rows and 33 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