current bounds on the number of colors: 0 -- 19

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:35 2012

Optimize a model with 163 rows, 187 columns and 603 nonzeros
Presolve removed 1 rows and 9 columns
Presolve time: 0.00s
Presolved: 162 rows, 178 columns, 594 nonzeros
Variable types: 0 continuous, 178 integer (178 binary)

Root relaxation: objective 0.000000e+00, 32 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 (32 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 -- 9

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:35 2012

Optimize a model with 83 rows, 92 columns and 268 nonzeros
Presolve removed 1 rows and 4 columns
Presolve time: 0.00s
Presolved: 82 rows, 88 columns, 264 nonzeros
Variable types: 0 continuous, 88 integer (88 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 -- 4

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:35 2012

Optimize a model with 51 rows, 54 columns and 134 nonzeros
Presolve removed 19 rows and 20 columns
Presolve time: 0.00s
Presolved: 32 rows, 34 columns, 96 nonzeros
Variable types: 0 continuous, 34 integer (34 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 Thu Dec 13 19:35:35 2012

Optimize a model with 35 rows, 35 columns and 67 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