current bounds on the number of colors: 0 -- 86

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 1720 rows, 3736 columns and 8600 nonzeros
Presolve removed 34 rows and 1462 columns
Presolve time: 0.02s
Presolved: 1686 rows, 2274 columns, 7138 nonzeros
Variable types: 0 continuous, 2274 integer (2274 binary)

Root relaxation: objective 0.000000e+00, 86 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 (86 simplex iterations) in 0.02 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 -- 43

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 884 rows, 1844 columns and 4200 nonzeros
Presolve removed 34 rows and 714 columns
Presolve time: 0.01s
Presolved: 850 rows, 1130 columns, 3486 nonzeros
Variable types: 0 continuous, 1130 integer (1130 binary)

Root relaxation: objective 0.000000e+00, 87 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 (87 simplex iterations) in 0.01 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 -- 21

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 466 rows, 898 columns and 2000 nonzeros
Presolve removed 34 rows and 340 columns
Presolve time: 0.00s
Presolved: 432 rows, 558 columns, 1660 nonzeros
Variable types: 0 continuous, 558 integer (558 binary)

Root relaxation: objective 0.000000e+00, 78 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 (78 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 -- 10

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 276 rows, 468 columns and 1000 nonzeros
Presolve removed 34 rows and 170 columns
Presolve time: 0.00s
Presolved: 242 rows, 298 columns, 830 nonzeros
Variable types: 0 continuous, 298 integer (298 binary)

Root relaxation: objective 0.000000e+00, 74 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 (74 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 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 162 rows, 210 columns and 400 nonzeros
Presolve removed 100 rows and 141 columns
Presolve time: 0.00s
Presolved: 62 rows, 69 columns, 186 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)

Root relaxation: objective 0.000000e+00, 29 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 (29 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 Sat Dec 15 16:14:28 2012

Optimize a model with 124 rows, 124 columns and 200 nonzeros
Presolve removed 124 rows and 124 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