current bounds on the number of colors: 0 -- 16

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:16 2012

Optimize a model with 48 rows, 132 columns and 224 nonzeros
Presolve removed 11 rows and 88 columns
Presolve time: 0.00s
Presolved: 37 rows, 44 columns, 136 nonzeros
Variable types: 0 continuous, 44 integer (44 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 -- 8

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:16 2012

Optimize a model with 32 rows, 68 columns and 112 nonzeros
Presolve removed 11 rows and 44 columns
Presolve time: 0.00s
Presolved: 21 rows, 24 columns, 68 nonzeros
Variable types: 0 continuous, 24 integer (24 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 -- 4

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:16 2012

Optimize a model with 24 rows, 36 columns and 56 nonzeros
Presolve removed 16 rows and 27 columns
Presolve time: 0.00s
Presolved: 8 rows, 9 columns, 24 nonzeros
Variable types: 0 continuous, 9 integer (9 binary)

Root relaxation: objective 0.000000e+00, 4 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 (4 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 18:19:16 2012

Optimize a model with 20 rows, 20 columns and 28 nonzeros
Presolve removed 20 rows and 20 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