current bounds on the number of colors: 0 -- 71

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:54 2012

Optimize a model with 1086 rows, 2514 columns and 5530 nonzeros
Presolve removed 30 rows and 1050 columns
Presolve time: 0.01s
Presolved: 1056 rows, 1464 columns, 4480 nonzeros
Variable types: 0 continuous, 1464 integer (1464 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 0.01 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 -- 35

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:54 2012

Optimize a model with 564 rows, 1236 columns and 2686 nonzeros
Presolve removed 30 rows and 510 columns
Presolve time: 0.00s
Presolved: 534 rows, 726 columns, 2176 nonzeros
Variable types: 0 continuous, 726 integer (726 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 -- 17

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:54 2012

Optimize a model with 303 rows, 597 columns and 1264 nonzeros
Presolve removed 30 rows and 240 columns
Presolve time: 0.00s
Presolved: 273 rows, 357 columns, 1024 nonzeros
Variable types: 0 continuous, 357 integer (357 binary)

Root relaxation: objective 0.000000e+00, 66 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 (66 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 -- 8

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:54 2012

Optimize a model with 187 rows, 313 columns and 632 nonzeros
Presolve removed 30 rows and 120 columns
Presolve time: 0.00s
Presolved: 157 rows, 193 columns, 512 nonzeros
Variable types: 0 continuous, 193 integer (193 binary)

Root relaxation: objective 0.000000e+00, 56 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 (56 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 16:13:54 2012

Optimize a model with 129 rows, 171 columns and 316 nonzeros
Presolve removed 83 rows and 119 columns
Presolve time: 0.00s
Presolved: 46 rows, 52 columns, 138 nonzeros
Variable types: 0 continuous, 52 integer (52 binary)

Root relaxation: objective 0.000000e+00, 17 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 (17 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 16:13:54 2012

Optimize a model with 100 rows, 100 columns and 158 nonzeros
Presolve removed 100 rows and 100 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