current bounds on the number of colors: 0 -- 203 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:58 2012 Optimize a model with 21211 rows, 20711 columns and 83527 nonzeros Presolve removed 21 rows and 2121 columns Presolve time: 0.13s Presolved: 21190 rows, 18590 columns, 81406 nonzeros Variable types: 0 continuous, 18590 integer (18590 binary) Root relaxation: objective 0.000000e+00, 327 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 (327 simplex iterations) in 0.15 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 -- 101 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:58 2012 Optimize a model with 10603 rows, 10358 columns and 41350 nonzeros Presolve removed 21 rows and 1050 columns Presolve time: 0.10s Presolved: 10582 rows, 9308 columns, 40300 nonzeros Variable types: 0 continuous, 9308 integer (9308 binary) Root relaxation: objective 0.000000e+00, 327 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 (327 simplex iterations) in 0.12 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 -- 50 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:59 2012 Optimize a model with 5403 rows, 5283 columns and 20675 nonzeros Presolve removed 21 rows and 525 columns Presolve time: 0.03s Presolved: 5382 rows, 4758 columns, 20150 nonzeros Variable types: 0 continuous, 4758 integer (4758 binary) Root relaxation: objective 0.000000e+00, 329 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 (329 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 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:59 2012 Optimize a model with 2699 rows, 2644 columns and 9924 nonzeros Presolve removed 21 rows and 252 columns Presolve time: 0.01s Presolved: 2678 rows, 2392 columns, 9672 nonzeros Variable types: 0 continuous, 2392 integer (2392 binary) Root relaxation: objective 0.000000e+00, 323 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 (323 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% current bounds on the number of colors: 0 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:59 2012 Optimize a model with 1451 rows, 1426 columns and 4962 nonzeros Presolve removed 21 rows and 126 columns Presolve time: 0.01s Presolved: 1430 rows, 1300 columns, 4836 nonzeros Variable types: 0 continuous, 1300 integer (1300 binary) Root relaxation: objective 0.000000e+00, 323 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 (323 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:59 2012 Optimize a model with 827 rows, 817 columns and 2481 nonzeros Presolve removed 21 rows and 63 columns Presolve time: 0.00s Presolved: 806 rows, 754 columns, 2418 nonzeros Variable types: 0 continuous, 754 integer (754 binary) Root relaxation: objective 0.000000e+00, 317 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 (448 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:59 2012 Optimize a model with 411 rows, 411 columns and 827 nonzeros Presolve removed 411 rows and 411 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 Sat Dec 15 16:30:59 2012 Optimize a model with 619 rows, 614 columns and 1654 nonzeros Presolve removed 211 rows and 236 columns Presolve time: 0.00s Presolved: 408 rows, 378 columns, 1224 nonzeros Variable types: 0 continuous, 378 integer (378 binary) Root relaxation: objective 0.000000e+00, 204 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 0 171 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (668 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 - optimal solution found: number of colors: 3