current bounds on the number of colors: 0 -- 83

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:20 2012

Optimize a model with 1313 rows, 3433 columns and 7093 nonzeros
Presolve removed 39 rows and 1599 columns
Presolve time: 0.01s
Presolved: 1274 rows, 1834 columns, 5494 nonzeros
Variable types: 0 continuous, 1834 integer (1834 binary)

Root relaxation: objective 0.000000e+00, 70 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 (70 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 -- 41

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:20 2012

Optimize a model with 683 rows, 1690 columns and 3460 nonzeros
Presolve removed 39 rows and 780 columns
Presolve time: 0.00s
Presolved: 644 rows, 910 columns, 2680 nonzeros
Variable types: 0 continuous, 910 integer (910 binary)

Root relaxation: objective 0.000000e+00, 70 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 (70 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 -- 20

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:20 2012

Optimize a model with 383 rows, 860 columns and 1730 nonzeros
Presolve removed 39 rows and 390 columns
Presolve time: 0.00s
Presolved: 344 rows, 470 columns, 1340 nonzeros
Variable types: 0 continuous, 470 integer (470 binary)

Root relaxation: objective 0.000000e+00, 71 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 (71 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 16:14:20 2012

Optimize a model with 233 rows, 445 columns and 865 nonzeros
Presolve removed 39 rows and 195 columns
Presolve time: 0.00s
Presolved: 194 rows, 250 columns, 670 nonzeros
Variable types: 0 continuous, 250 integer (250 binary)

Root relaxation: objective 0.000000e+00, 65 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 (65 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 16:14:20 2012

Optimize a model with 143 rows, 196 columns and 346 nonzeros
Presolve removed 95 rows and 140 columns
Presolve time: 0.00s
Presolved: 48 rows, 56 columns, 144 nonzeros
Variable types: 0 continuous, 56 integer (56 binary)

Root relaxation: objective 0.000000e+00, 21 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 (21 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 16:14:20 2012

Optimize a model with 113 rows, 113 columns and 173 nonzeros
Presolve removed 113 rows and 113 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