current bounds on the number of colors: 0 -- 17

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:17 2012

Optimize a model with 89 rows, 145 columns and 352 nonzeros
Presolve removed 6 rows and 48 columns
Presolve time: 0.00s
Presolved: 83 rows, 97 columns, 304 nonzeros
Variable types: 0 continuous, 97 integer (97 binary)

Root relaxation: objective 0.000000e+00, 18 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 (18 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 -- 8

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:17 2012

Optimize a model with 53 rows, 77 columns and 176 nonzeros
Presolve removed 6 rows and 24 columns
Presolve time: 0.00s
Presolved: 47 rows, 53 columns, 152 nonzeros
Variable types: 0 continuous, 53 integer (53 binary)

Root relaxation: objective 0.000000e+00, 19 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 (19 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 -- 4

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:17 2012

Optimize a model with 35 rows, 43 columns and 88 nonzeros
Presolve removed 17 rows and 23 columns
Presolve time: 0.00s
Presolved: 18 rows, 20 columns, 54 nonzeros
Variable types: 0 continuous, 20 integer (20 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 18:19:17 2012

Optimize a model with 26 rows, 26 columns and 44 nonzeros
Presolve removed 26 rows and 26 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