current bounds on the number of colors: 0 -- 66

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:44 2012

Optimize a model with 924 rows, 2204 columns and 4752 nonzeros
Presolve removed 30 rows and 990 columns
Presolve time: 0.01s
Presolved: 894 rows, 1214 columns, 3762 nonzeros
Variable types: 0 continuous, 1214 integer (1214 binary)

Root relaxation: objective 0.000000e+00, 58 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 (58 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 -- 33

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:44 2012

Optimize a model with 482 rows, 1082 columns and 2304 nonzeros
Presolve removed 30 rows and 480 columns
Presolve time: 0.00s
Presolved: 452 rows, 602 columns, 1824 nonzeros
Variable types: 0 continuous, 602 integer (602 binary)

Root relaxation: objective 0.000000e+00, 58 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 (58 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 -- 16

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:44 2012

Optimize a model with 274 rows, 554 columns and 1152 nonzeros
Presolve removed 30 rows and 240 columns
Presolve time: 0.00s
Presolved: 244 rows, 314 columns, 912 nonzeros
Variable types: 0 continuous, 314 integer (314 binary)

Root relaxation: objective 0.000000e+00, 57 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 (57 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 16:13:44 2012

Optimize a model with 170 rows, 290 columns and 576 nonzeros
Presolve removed 30 rows and 120 columns
Presolve time: 0.00s
Presolved: 140 rows, 170 columns, 456 nonzeros
Variable types: 0 continuous, 170 integer (170 binary)

Root relaxation: objective 0.000000e+00, 50 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 (50 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 16:13:44 2012

Optimize a model with 118 rows, 158 columns and 288 nonzeros
Presolve removed 78 rows and 114 columns
Presolve time: 0.00s
Presolved: 40 rows, 44 columns, 120 nonzeros
Variable types: 0 continuous, 44 integer (44 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 16:13:44 2012

Optimize a model with 92 rows, 92 columns and 144 nonzeros
Presolve removed 92 rows and 92 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