current bounds on the number of colors: 0 -- 14

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:33 2012

Optimize a model with 70 rows, 106 columns and 266 nonzeros
Presolve removed 2 rows and 14 columns
Presolve time: 0.00s
Presolved: 68 rows, 92 columns, 252 nonzeros
Variable types: 0 continuous, 92 integer (92 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 -- 7

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:33 2012

Optimize a model with 38 rows, 50 columns and 114 nonzeros
Presolve removed 2 rows and 6 columns
Presolve time: 0.00s
Presolved: 36 rows, 44 columns, 108 nonzeros
Variable types: 0 continuous, 44 integer (44 binary)

Root relaxation: objective 0.000000e+00, 20 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 (20 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 -- 3

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:33 2012

Optimize a model with 22 rows, 22 columns and 38 nonzeros
Presolve removed 22 rows and 22 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 -


current bounds on the number of colors: 1 -- 3

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:33 2012

Optimize a model with 30 rows, 36 columns and 76 nonzeros
Presolve removed 18 rows and 22 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, 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%


optimal solution found: number of colors: 2