current bounds on the number of colors: 0 -- 21

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

Optimize a model with 161 rows, 224 columns and 630 nonzeros
Presolve removed 5 rows and 50 columns
Presolve time: 0.00s
Presolved: 156 rows, 174 columns, 580 nonzeros
Variable types: 0 continuous, 174 integer (174 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 -- 10

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

Optimize a model with 91 rows, 119 columns and 315 nonzeros
Presolve removed 5 rows and 25 columns
Presolve time: 0.00s
Presolved: 86 rows, 94 columns, 290 nonzeros
Variable types: 0 continuous, 94 integer (94 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 18:19:20 2012

Optimize a model with 49 rows, 56 columns and 126 nonzeros
Presolve removed 27 rows and 35 columns
Presolve time: 0.00s
Presolved: 22 rows, 21 columns, 66 nonzeros
Variable types: 0 continuous, 21 integer (21 binary)

Root relaxation: objective 0.000000e+00, 7 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 (7 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 35 rows, 35 columns and 63 nonzeros
Presolve removed 35 rows and 35 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