current bounds on the number of colors: 0 -- 78

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:07 2012

Optimize a model with 1482 rows, 3078 columns and 7254 nonzeros
Presolve removed 30 rows and 1170 columns
Presolve time: 0.01s
Presolved: 1452 rows, 1908 columns, 6084 nonzeros
Variable types: 0 continuous, 1908 integer (1908 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 0.02 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 -- 39

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:07 2012

Optimize a model with 762 rows, 1518 columns and 3534 nonzeros
Presolve removed 30 rows and 570 columns
Presolve time: 0.01s
Presolved: 732 rows, 948 columns, 2964 nonzeros
Variable types: 0 continuous, 948 integer (948 binary)

Root relaxation: objective 0.000000e+00, 76 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 (76 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 -- 19

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:07 2012

Optimize a model with 402 rows, 738 columns and 1674 nonzeros
Presolve removed 30 rows and 270 columns
Presolve time: 0.00s
Presolved: 372 rows, 468 columns, 1404 nonzeros
Variable types: 0 continuous, 468 integer (468 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 -- 9

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:07 2012

Optimize a model with 222 rows, 348 columns and 744 nonzeros
Presolve removed 30 rows and 120 columns
Presolve time: 0.00s
Presolved: 192 rows, 228 columns, 624 nonzeros
Variable types: 0 continuous, 228 integer (228 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 0.00 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 Sat Dec 15 16:14:07 2012

Optimize a model with 150 rows, 192 columns and 372 nonzeros
Presolve removed 90 rows and 126 columns
Presolve time: 0.00s
Presolved: 60 rows, 66 columns, 180 nonzeros
Variable types: 0 continuous, 66 integer (66 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 16:14:07 2012

Optimize a model with 114 rows, 114 columns and 186 nonzeros
Presolve removed 114 rows and 114 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