current bounds on the number of colors: 0 -- 20
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:56:00 2012
Optimize a model with 1000 rows, 298 columns and 3140 nonzeros
Presolve time: 0.00s
Presolved: 1000 rows, 298 columns, 3140 nonzeros
Variable types: 0 continuous, 298 integer (298 binary)
Root relaxation: objective 0.000000e+00, 49 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 (95 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 -- 10
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:56:00 2012
Optimize a model with 510 rows, 198 columns and 1570 nonzeros
Presolve time: 0.00s
Presolved: 510 rows, 198 columns, 1570 nonzeros
Variable types: 0 continuous, 198 integer (198 binary)
Root relaxation: objective 0.000000e+00, 40 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 26 - 0.00000 - - 0s
0 0 0.00000 0 24 - 0.00000 - - 0s
0 0 0.00000 0 59 - 0.00000 - - 0s
0 0 0.00000 0 64 - 0.00000 - - 0s
0 0 0.00000 0 52 - 0.00000 - - 0s
0 0 0.00000 0 36 - 0.00000 - - 0s
0 0 0.00000 0 55 - 0.00000 - - 0s
0 0 0.00000 0 52 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Cutting planes:
Clique: 4
Zero half: 31
Explored 0 nodes (1857 simplex iterations) in 0.08 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: 5 -- 10
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:56:00 2012
Optimize a model with 706 rows, 238 columns and 2198 nonzeros
Presolve time: 0.00s
Presolved: 706 rows, 238 columns, 2198 nonzeros
Variable types: 0 continuous, 238 integer (238 binary)
Root relaxation: objective 0.000000e+00, 44 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 (183 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: 5 -- 7
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:56:00 2012
Optimize a model with 608 rows, 218 columns and 1884 nonzeros
Presolve time: 0.00s
Presolved: 608 rows, 218 columns, 1884 nonzeros
Variable types: 0 continuous, 218 integer (218 binary)
Root relaxation: objective 0.000000e+00, 40 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 23 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (189 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%
optimal solution found: number of colors: 6