current bounds on the number of colors: 0 -- 57
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:50 2012
Optimize a model with 5209 rows, 1780 columns and 17052 nonzeros
Presolve time: 0.02s
Presolved: 5209 rows, 1780 columns, 17052 nonzeros
Variable types: 0 continuous, 1780 integer (1780 binary)
Root relaxation: objective 0.000000e+00, 141 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 (244 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 -- 28
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:50 2012
Optimize a model with 2633 rows, 982 columns and 8526 nonzeros
Presolve time: 0.01s
Presolved: 2633 rows, 982 columns, 8526 nonzeros
Variable types: 0 continuous, 982 integer (982 binary)
Root relaxation: objective 0.000000e+00, 121 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 (209 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 -- 14
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:50 2012
Optimize a model with 1345 rows, 583 columns and 4263 nonzeros
Presolve time: 0.00s
Presolved: 1345 rows, 583 columns, 4263 nonzeros
Variable types: 0 continuous, 583 integer (583 binary)
Root relaxation: objective 0.000000e+00, 130 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 (233 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 -- 7
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:50 2012
Optimize a model with 609 rows, 355 columns and 1827 nonzeros
Presolve time: 0.00s
Presolved: 609 rows, 355 columns, 1827 nonzeros
Variable types: 0 continuous, 355 integer (355 binary)
Root relaxation: objective 0.000000e+00, 127 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 0 112 - 0.00000 - - 0s
0 0 0.00000 0 110 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (1116 simplex iterations) in 0.05 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 19:36:50 2012
Optimize a model with 977 rows, 469 columns and 3045 nonzeros
Presolve time: 0.00s
Presolved: 977 rows, 469 columns, 3045 nonzeros
Variable types: 0 continuous, 469 integer (469 binary)
Root relaxation: objective 0.000000e+00, 125 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 (232 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: 3 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:50 2012
Optimize a model with 793 rows, 412 columns and 2436 nonzeros
Presolve time: 0.00s
Presolved: 793 rows, 412 columns, 2436 nonzeros
Variable types: 0 continuous, 412 integer (412 binary)
Root relaxation: objective 0.000000e+00, 132 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 38 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (720 simplex iterations) in 0.02 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%
optimal solution found: number of colors: 4