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 72 rows, 135 columns and 296 nonzeros
Presolve removed 6 rows and 48 columns
Presolve time: 0.00s
Presolved: 66 rows, 87 columns, 248 nonzeros
Variable types: 0 continuous, 87 integer (87 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 -- 8

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

Optimize a model with 44 rows, 71 columns and 148 nonzeros
Presolve removed 6 rows and 24 columns
Presolve time: 0.00s
Presolved: 38 rows, 47 columns, 124 nonzeros
Variable types: 0 continuous, 47 integer (47 binary)

Root relaxation: objective 0.000000e+00, 15 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 (15 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 30 rows, 39 columns and 74 nonzeros
Presolve removed 18 rows and 25 columns
Presolve time: 0.00s
Presolved: 12 rows, 14 columns, 36 nonzeros
Variable types: 0 continuous, 14 integer (14 binary)

Root relaxation: objective 0.000000e+00, 5 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 (5 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 23 rows, 23 columns and 37 nonzeros
Presolve removed 23 rows and 23 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