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

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:20 2012

Optimize a model with 209 rows, 259 columns and 803 nonzeros
Presolve removed 3 rows and 33 columns
Presolve time: 0.00s
Presolved: 206 rows, 226 columns, 770 nonzeros
Variable types: 0 continuous, 226 integer (226 binary)

Root relaxation: objective 0.000000e+00, 33 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 (33 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 18:19:20 2012

Optimize a model with 107 rows, 127 columns and 365 nonzeros
Presolve removed 3 rows and 15 columns
Presolve time: 0.00s
Presolved: 104 rows, 112 columns, 350 nonzeros
Variable types: 0 continuous, 112 integer (112 binary)

Root relaxation: objective 0.000000e+00, 33 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 (33 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 18:19:20 2012

Optimize a model with 56 rows, 61 columns and 146 nonzeros
Presolve removed 22 rows and 25 columns
Presolve time: 0.00s
Presolved: 34 rows, 36 columns, 102 nonzeros
Variable types: 0 continuous, 36 integer (36 binary)

Root relaxation: objective 0.000000e+00, 16 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 (16 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 18:19:20 2012

Optimize a model with 39 rows, 39 columns and 73 nonzeros
Presolve removed 39 rows and 39 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