current bounds on the number of colors: 0 -- 141

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:40:29 2012

Optimize a model with 37381 rows, 10402 columns and 121590 nonzeros
Presolve time: 0.15s
Presolved: 37381 rows, 10402 columns, 121590 nonzeros
Variable types: 0 continuous, 10402 integer (10402 binary)

Root relaxation: objective 0.000000e+00, 522 iterations, 0.03 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 (831 simplex iterations) in 0.23 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 -- 70

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:40:29 2012

Optimize a model with 18761 rows, 5467 columns and 60795 nonzeros
Presolve time: 0.09s
Presolved: 18761 rows, 5467 columns, 60795 nonzeros
Variable types: 0 continuous, 5467 integer (5467 binary)

Root relaxation: objective 0.000000e+00, 359 iterations, 0.01 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 (625 simplex iterations) in 0.13 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 Fri Dec 14 18:40:30 2012

Optimize a model with 9185 rows, 2929 columns and 29529 nonzeros
Presolve time: 0.03s
Presolved: 9185 rows, 2929 columns, 29529 nonzeros
Variable types: 0 continuous, 2929 integer (2929 binary)

Root relaxation: objective 0.000000e+00, 296 iterations, 0.01 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 (543 simplex iterations) in 0.05 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 Fri Dec 14 18:40:30 2012

Optimize a model with 4397 rows, 1660 columns and 13896 nonzeros
Presolve time: 0.01s
Presolved: 4397 rows, 1660 columns, 13896 nonzeros
Variable types: 0 continuous, 1660 integer (1660 binary)

Root relaxation: objective 0.000000e+00, 304 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 (565 simplex iterations) in 0.03 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 Fri Dec 14 18:40:30 2012

Optimize a model with 2269 rows, 1096 columns and 6948 nonzeros
Presolve time: 0.01s
Presolved: 2269 rows, 1096 columns, 6948 nonzeros
Variable types: 0 continuous, 1096 integer (1096 binary)

Root relaxation: objective 0.000000e+00, 329 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0  260          -    0.00000     -      -    0s
H    0     0                       0.0000000    0.00000   0.0%     -    0s

Explored 0 nodes (1358 simplex iterations) in 0.05 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 Fri Dec 14 18:40:30 2012

Optimize a model with 1205 rows, 814 columns and 3474 nonzeros
Presolve removed 141 rows and 141 columns
Presolve time: 0.00s
Presolved: 1064 rows, 673 columns, 3192 nonzeros
Variable types: 0 continuous, 673 integer (673 binary)

Root relaxation: objective 0.000000e+00, 152 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0  141          -    0.00000     -      -    0s

Explored 0 nodes (591 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -


current bounds on the number of colors: 2 -- 4

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:40:30 2012

Optimize a model with 1737 rows, 955 columns and 5211 nonzeros
Presolve time: 0.00s
Presolved: 1737 rows, 955 columns, 5211 nonzeros
Variable types: 0 continuous, 955 integer (955 binary)

Root relaxation: objective 0.000000e+00, 333 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0  280          -    0.00000     -      -    0s
     0     0    0.00000    0  276          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (2958 simplex iterations) in 0.22 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -


optimal solution found: number of colors: 4