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 1051 rows, 2513 columns and 5425 nonzeros
Presolve removed 33 rows and 1155 columns
Presolve time: 0.01s
Presolved: 1018 rows, 1358 columns, 4270 nonzeros
Variable types: 0 continuous, 1358 integer (1358 binary)

Root relaxation: objective 0.000000e+00, 61 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 (61 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 547 rows, 1235 columns and 2635 nonzeros
Presolve removed 33 rows and 561 columns
Presolve time: 0.00s
Presolved: 514 rows, 674 columns, 2074 nonzeros
Variable types: 0 continuous, 674 integer (674 binary)

Root relaxation: objective 0.000000e+00, 62 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 (62 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 295 rows, 596 columns and 1240 nonzeros
Presolve removed 33 rows and 264 columns
Presolve time: 0.00s
Presolved: 262 rows, 332 columns, 976 nonzeros
Variable types: 0 continuous, 332 integer (332 binary)

Root relaxation: objective 0.000000e+00, 60 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 (60 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 183 rows, 312 columns and 620 nonzeros
Presolve removed 33 rows and 132 columns
Presolve time: 0.00s
Presolved: 150 rows, 180 columns, 488 nonzeros
Variable types: 0 continuous, 180 integer (180 binary)

Root relaxation: objective 0.000000e+00, 52 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 (52 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 127 rows, 170 columns and 310 nonzeros
Presolve removed 85 rows and 125 columns
Presolve time: 0.00s
Presolved: 42 rows, 45 columns, 126 nonzeros
Variable types: 0 continuous, 45 integer (45 binary)

Root relaxation: objective 0.000000e+00, 16 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 (16 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 99 rows, 99 columns and 155 nonzeros
Presolve removed 99 rows and 99 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