current bounds on the number of colors: 0 -- 228 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:39:13 2012 Optimize a model with 30780 rows, 26260 columns and 117648 nonzeros Presolve removed 19 rows and 2166 columns Presolve time: 0.15s Presolved: 30761 rows, 24094 columns, 115482 nonzeros Variable types: 0 continuous, 24094 integer (24094 binary) Root relaxation: objective 0.000000e+00, 389 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 (389 simplex iterations) in 0.18 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 -- 114 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:39:14 2012 Optimize a model with 15504 rows, 13264 columns and 58824 nonzeros Presolve removed 19 rows and 1083 columns Presolve time: 0.12s Presolved: 15485 rows, 12181 columns, 57741 nonzeros Variable types: 0 continuous, 12181 integer (12181 binary) Root relaxation: objective 0.000000e+00, 390 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 (390 simplex iterations) in 0.13 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 -- 57 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:39:14 2012 Optimize a model with 7732 rows, 6652 columns and 28896 nonzeros Presolve removed 19 rows and 532 columns Presolve time: 0.05s Presolved: 7713 rows, 6120 columns, 28364 nonzeros Variable types: 0 continuous, 6120 integer (6120 binary) Root relaxation: objective 0.000000e+00, 390 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 (390 simplex iterations) in 0.06 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 Sat Dec 15 16:39:15 2012 Optimize a model with 3980 rows, 3460 columns and 14448 nonzeros Presolve removed 19 rows and 266 columns Presolve time: 0.02s Presolved: 3961 rows, 3194 columns, 14182 nonzeros Variable types: 0 continuous, 3194 integer (3194 binary) Root relaxation: objective 0.000000e+00, 416 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 (646 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 -- 14 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:39:15 2012 Optimize a model with 2104 rows, 1864 columns and 7224 nonzeros Presolve removed 19 rows and 133 columns Presolve time: 0.01s Presolved: 2085 rows, 1731 columns, 7091 nonzeros Variable types: 0 continuous, 1731 integer (1731 binary) Root relaxation: objective 0.000000e+00, 414 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 (619 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 16:39:15 2012 Optimize a model with 1032 rows, 952 columns and 3096 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 1013 rows, 895 columns, 3039 nonzeros Variable types: 0 continuous, 895 integer (895 binary) Root relaxation: objective 0.000000e+00, 368 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 (509 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 16:39:15 2012 Optimize a model with 496 rows, 496 columns and 1032 nonzeros Presolve removed 496 rows and 496 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 16:39:15 2012 Optimize a model with 764 rows, 724 columns and 2064 nonzeros Presolve removed 234 rows and 256 columns Presolve time: 0.00s Presolved: 530 rows, 468 columns, 1590 nonzeros Variable types: 0 continuous, 468 integer (468 binary) Root relaxation: objective 0.000000e+00, 232 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 0 196 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (750 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