current bounds on the number of colors: 0 -- 50
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:52 2012
Optimize a model with 1600 rows, 1312 columns and 5900 nonzeros
Presolve removed 6 rows and 150 columns
Presolve time: 0.01s
Presolved: 1594 rows, 1162 columns, 5750 nonzeros
Variable types: 0 continuous, 1162 integer (1162 binary)
Root relaxation: objective 0.000000e+00, 86 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 (86 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 -- 25
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:52 2012
Optimize a model with 794 rows, 662 columns and 2832 nonzeros
Presolve removed 6 rows and 72 columns
Presolve time: 0.00s
Presolved: 788 rows, 590 columns, 2760 nonzeros
Variable types: 0 continuous, 590 integer (590 binary)
Root relaxation: objective 0.000000e+00, 86 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 (133 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 -- 12
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:52 2012
Optimize a model with 422 rows, 362 columns and 1416 nonzeros
Presolve removed 6 rows and 36 columns
Presolve time: 0.00s
Presolved: 416 rows, 326 columns, 1380 nonzeros
Variable types: 0 continuous, 326 integer (326 binary)
Root relaxation: objective 0.000000e+00, 95 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 (150 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 -- 6
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:52 2012
Optimize a model with 236 rows, 212 columns and 708 nonzeros
Presolve removed 6 rows and 18 columns
Presolve time: 0.00s
Presolved: 230 rows, 194 columns, 690 nonzeros
Variable types: 0 continuous, 194 integer (194 binary)
Root relaxation: objective 0.000000e+00, 91 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 25 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (216 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 -- 3
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:52 2012
Optimize a model with 112 rows, 112 columns and 236 nonzeros
Presolve removed 112 rows and 112 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 -
current bounds on the number of colors: 1 -- 3
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:52 2012
Optimize a model with 174 rows, 162 columns and 472 nonzeros
Presolve removed 52 rows and 59 columns
Presolve time: 0.00s
Presolved: 122 rows, 103 columns, 366 nonzeros
Variable types: 0 continuous, 103 integer (103 binary)
Root relaxation: objective 0.000000e+00, 45 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 42 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (161 simplex iterations) in 0.00 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: 3