current bounds on the number of colors: 0 -- 167
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 20:25:59 2012
Optimize a model with 57603 rows, 14553 columns and 186169 nonzeros
Presolve time: 0.18s
Presolved: 57603 rows, 14553 columns, 186169 nonzeros
Variable types: 0 continuous, 14553 integer (14553 binary)
Root relaxation: objective 0.000000e+00, 661 iterations, 0.06 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 (1043 simplex iterations) in 0.32 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 -- 83
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 20:26:00 2012
Optimize a model with 28539 rows, 7539 columns and 91963 nonzeros
Presolve time: 0.14s
Presolved: 28539 rows, 7539 columns, 91963 nonzeros
Variable types: 0 continuous, 7539 integer (7539 binary)
Root relaxation: objective 0.000000e+00, 529 iterations, 0.02 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 (879 simplex iterations) in 0.20 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 -- 41
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 20:26:01 2012
Optimize a model with 14007 rows, 4032 columns and 44860 nonzeros
Presolve time: 0.05s
Presolved: 14007 rows, 4032 columns, 44860 nonzeros
Variable types: 0 continuous, 4032 integer (4032 binary)
Root relaxation: objective 0.000000e+00, 340 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 (737 simplex iterations) in 0.09 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 -- 20
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 20:26:01 2012
Optimize a model with 7087 rows, 2362 columns and 22430 nonzeros
Presolve time: 0.02s
Presolved: 7087 rows, 2362 columns, 22430 nonzeros
Variable types: 0 continuous, 2362 integer (2362 binary)
Root relaxation: objective 0.000000e+00, 360 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 (655 simplex iterations) in 0.04 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 Fri Dec 14 20:26:01 2012
Optimize a model with 3627 rows, 1527 columns and 11215 nonzeros
Presolve time: 0.01s
Presolved: 3627 rows, 1527 columns, 11215 nonzeros
Variable types: 0 continuous, 1527 integer (1527 binary)
Root relaxation: objective 0.000000e+00, 374 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 (1428 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 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 20:26:01 2012
Optimize a model with 1551 rows, 1026 columns and 4486 nonzeros
Presolve removed 167 rows and 167 columns
Presolve time: 0.00s
Presolved: 1384 rows, 859 columns, 4152 nonzeros
Variable types: 0 continuous, 859 integer (859 binary)
Root relaxation: objective 0.000000e+00, 177 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 0 167 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (731 simplex iterations) in 0.02 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 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 20:26:02 2012
Optimize a model with 2243 rows, 1193 columns and 6729 nonzeros
Presolve time: 0.01s
Presolved: 2243 rows, 1193 columns, 6729 nonzeros
Variable types: 0 continuous, 1193 integer (1193 binary)
Root relaxation: objective 0.000000e+00, 382 iterations, 0.01 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 320 - 0.00000 - - 0s
0 0 0.00000 0 324 - 0.00000 - - 0s
0 0 0.00000 0 353 - 0.00000 - - 0s
0 0 0.00000 0 466 - 0.00000 - - 0s
0 0 0.00000 0 439 - 0.00000 - - 1s
0 0 0.00000 0 439 - 0.00000 - - 1s
0 0 0.00000 0 427 - 0.00000 - - 2s
0 0 0.00000 0 447 - 0.00000 - - 2s
0 0 0.00000 0 447 - 0.00000 - - 3s
0 0 0.00000 0 346 - 0.00000 - - 3s
0 2 0.00000 0 346 - 0.00000 - - 3s
Cutting planes:
Zero half: 21
Explored 3 nodes (24645 simplex iterations) in 3.57 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: 3 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 20:26:05 2012
Optimize a model with 2935 rows, 1360 columns and 8972 nonzeros
Presolve time: 0.01s
Presolved: 2935 rows, 1360 columns, 8972 nonzeros
Variable types: 0 continuous, 1360 integer (1360 binary)
Root relaxation: objective 0.000000e+00, 377 iterations, 0.01 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 324 - 0.00000 - - 0s
0 0 0.00000 0 314 - 0.00000 - - 0s
0 0 0.00000 0 316 - 0.00000 - - 0s
0 0 0.00000 0 337 - 0.00000 - - 0s
0 0 0.00000 0 314 - 0.00000 - - 0s
0 0 0.00000 0 308 - 0.00000 - - 0s
0 0 0.00000 0 294 - 0.00000 - - 1s
0 0 0.00000 0 296 - 0.00000 - - 1s
0 0 0.00000 0 284 - 0.00000 - - 1s
0 0 0.00000 0 280 - 0.00000 - - 1s
0 0 0.00000 0 262 - 0.00000 - - 2s
0 0 0.00000 0 256 - 0.00000 - - 2s
0 0 0.00000 0 246 - 0.00000 - - 2s
0 0 0.00000 0 232 - 0.00000 - - 2s
0 0 0.00000 0 230 - 0.00000 - - 2s
0 0 0.00000 0 226 - 0.00000 - - 3s
0 0 0.00000 0 223 - 0.00000 - - 3s
0 0 0.00000 0 218 - 0.00000 - - 3s
0 0 0.00000 0 248 - 0.00000 - - 3s
0 0 0.00000 0 247 - 0.00000 - - 3s
0 0 0.00000 0 328 - 0.00000 - - 4s
0 0 0.00000 0 316 - 0.00000 - - 4s
0 2 0.00000 0 316 - 0.00000 - - 4s
16 16 0.00000 10 320 - 0.00000 - 220 5s
609 167 0.00000 11 272 - 0.00000 - 64.8 10s
888 153 0.00000 20 268 - 0.00000 - 117 15s
1553 207 0.00000 30 288 - 0.00000 - 128 20s
2270 352 infeasible 35 - 0.00000 - 130 25s
2942 428 infeasible 26 - 0.00000 - 134 30s
3576 464 0.00000 33 240 - 0.00000 - 138 35s
4280 520 infeasible 28 - 0.00000 - 138 40s
4951 539 0.00000 30 270 - 0.00000 - 139 45s
* 5554 0 27 0.0000000 0.00000 0.0% 140 49s
Cutting planes:
Gomory: 1
Clique: 1
Zero half: 11
Explored 5555 nodes (829142 simplex iterations) in 49.54 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