current bounds on the number of colors: 0 -- 14

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:55:54 2012

Optimize a model with 357 rows, 147 columns and 1127 nonzeros
Presolve time: 0.00s
Presolved: 357 rows, 147 columns, 1127 nonzeros
Variable types: 0 continuous, 147 integer (147 binary)

Root relaxation: objective 0.000000e+00, 36 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 (77 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 -- 7

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:55:54 2012

Optimize a model with 161 rows, 91 columns and 483 nonzeros
Presolve time: 0.00s
Presolved: 161 rows, 91 columns, 483 nonzeros
Variable types: 0 continuous, 91 integer (91 binary)

Root relaxation: objective 0.000000e+00, 28 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   24          -    0.00000     -      -    0s
     0     0    0.00000    0   28          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (220 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: 3 -- 7

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:55:54 2012

Optimize a model with 259 rows, 119 columns and 805 nonzeros
Presolve time: 0.00s
Presolved: 259 rows, 119 columns, 805 nonzeros
Variable types: 0 continuous, 119 integer (119 binary)

Root relaxation: objective 0.000000e+00, 33 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 0.00 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: 3 -- 5

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:55:54 2012

Optimize a model with 210 rows, 105 columns and 644 nonzeros
Presolve time: 0.00s
Presolved: 210 rows, 105 columns, 644 nonzeros
Variable types: 0 continuous, 105 integer (105 binary)

Root relaxation: objective 0.000000e+00, 28 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   27          -    0.00000     -      -    0s
     0     0    0.00000    0   24          -    0.00000     -      -    0s
     0     0    0.00000    0   17          -    0.00000     -      -    0s
     0     0    0.00000    0   25          -    0.00000     -      -    0s
     0     0    0.00000    0   32          -    0.00000     -      -    0s
     0     0    0.00000    0   28          -    0.00000     -      -    0s
     0     0    0.00000    0   27          -    0.00000     -      -    0s
     0     0    0.00000    0   26          -    0.00000     -      -    0s
     0     0    0.00000    0   14          -    0.00000     -      -    0s
     0     0    0.00000    0   23          -    0.00000     -      -    0s
     0     0    0.00000    0   16          -    0.00000     -      -    0s
     0     0    0.00000    0   32          -    0.00000     -      -    0s
     0     0    0.00000    0   14          -    0.00000     -      -    0s
     0     2    0.00000    0   14          -    0.00000     -      -    0s

Cutting planes:
  Clique: 1
  Zero half: 1

Explored 6 nodes (1216 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound -, gap -


optimal solution found: number of colors: 5