current bounds on the number of colors: 0 -- 249 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:06 2012 Optimize a model with 41789 rows, 31211 columns and 155496 nonzeros Presolve removed 17 rows and 2108 columns Presolve time: 0.21s Presolved: 41772 rows, 29103 columns, 153388 nonzeros Variable types: 0 continuous, 29103 integer (29103 binary) Root relaxation: objective 0.000000e+00, 470 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 (470 simplex iterations) in 0.24 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 -- 124 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:07 2012 Optimize a model with 21019 rows, 15773 columns and 77748 nonzeros Presolve removed 17 rows and 1054 columns Presolve time: 0.13s Presolved: 21002 rows, 14719 columns, 76694 nonzeros Variable types: 0 continuous, 14719 integer (14719 binary) Root relaxation: objective 0.000000e+00, 470 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 (470 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 -- 62 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:07 2012 Optimize a model with 10634 rows, 8054 columns and 38874 nonzeros Presolve removed 17 rows and 527 columns Presolve time: 0.07s Presolved: 10617 rows, 7527 columns, 38347 nonzeros Variable types: 0 continuous, 7527 integer (7527 binary) Root relaxation: objective 0.000000e+00, 461 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 (461 simplex iterations) in 0.08 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 -- 31 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:08 2012 Optimize a model with 5274 rows, 4070 columns and 18810 nonzeros Presolve removed 17 rows and 255 columns Presolve time: 0.02s Presolved: 5257 rows, 3815 columns, 18555 nonzeros Variable types: 0 continuous, 3815 integer (3815 binary) Root relaxation: objective 0.000000e+00, 485 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 (800 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:08 2012 Optimize a model with 2594 rows, 2078 columns and 8778 nonzeros Presolve removed 17 rows and 119 columns Presolve time: 0.01s Presolved: 2577 rows, 1959 columns, 8659 nonzeros Variable types: 0 continuous, 1959 integer (1959 binary) Root relaxation: objective 0.000000e+00, 453 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 (453 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 Sat Dec 15 16:48:08 2012 Optimize a model with 1254 rows, 1082 columns and 3762 nonzeros Presolve removed 17 rows and 51 columns Presolve time: 0.00s Presolved: 1237 rows, 1031 columns, 3711 nonzeros Variable types: 0 continuous, 1031 integer (1031 binary) Root relaxation: objective 0.000000e+00, 494 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 (790 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 16:48:08 2012 Optimize a model with 584 rows, 584 columns and 1254 nonzeros Presolve removed 584 rows and 584 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 16:48:08 2012 Optimize a model with 919 rows, 833 columns and 2508 nonzeros Presolve removed 251 rows and 269 columns Presolve time: 0.00s Presolved: 668 rows, 564 columns, 2004 nonzeros Variable types: 0 continuous, 564 integer (564 binary) Root relaxation: objective 0.000000e+00, 264 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 0 230 - 0.00000 - - 0s Explored 0 nodes (901 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