current bounds on the number of colors: 0 -- 237 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:42:46 2012 Optimize a model with 36463 rows, 28273 columns and 136644 nonzeros Presolve removed 13 rows and 1534 columns Presolve time: 0.18s Presolved: 36450 rows, 26739 columns, 135110 nonzeros Variable types: 0 continuous, 26739 integer (26739 binary) Root relaxation: objective 0.000000e+00, 449 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 (449 simplex iterations) in 0.21 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 -- 118 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:42:47 2012 Optimize a model with 18350 rows, 14290 columns and 68322 nonzeros Presolve removed 13 rows and 767 columns Presolve time: 0.13s Presolved: 18337 rows, 13523 columns, 67555 nonzeros Variable types: 0 continuous, 13523 integer (13523 binary) Root relaxation: objective 0.000000e+00, 451 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 (451 simplex iterations) in 0.14 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 -- 59 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:42:47 2012 Optimize a model with 9140 rows, 7180 columns and 33582 nonzeros Presolve removed 13 rows and 377 columns Presolve time: 0.06s Presolved: 9127 rows, 6803 columns, 33205 nonzeros Variable types: 0 continuous, 6803 integer (6803 binary) Root relaxation: objective 0.000000e+00, 454 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 (454 simplex iterations) in 0.07 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 -- 29 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:42:48 2012 Optimize a model with 4535 rows, 3625 columns and 16212 nonzeros Presolve removed 13 rows and 182 columns Presolve time: 0.02s Presolved: 4522 rows, 3443 columns, 16030 nonzeros Variable types: 0 continuous, 3443 integer (3443 binary) Root relaxation: objective 0.000000e+00, 464 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 (720 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 16:42:48 2012 Optimize a model with 2386 rows, 1966 columns and 8106 nonzeros Presolve removed 13 rows and 91 columns Presolve time: 0.01s Presolved: 2373 rows, 1875 columns, 8015 nonzeros Variable types: 0 continuous, 1875 integer (1875 binary) Root relaxation: objective 0.000000e+00, 437 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 (437 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 16:42:48 2012 Optimize a model with 1158 rows, 1018 columns and 3474 nonzeros Presolve removed 13 rows and 39 columns Presolve time: 0.00s Presolved: 1145 rows, 979 columns, 3435 nonzeros Variable types: 0 continuous, 979 integer (979 binary) Root relaxation: objective 0.000000e+00, 486 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 (696 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 16:42:48 2012 Optimize a model with 544 rows, 544 columns and 1158 nonzeros Presolve removed 544 rows and 544 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 16:42:48 2012 Optimize a model with 851 rows, 781 columns and 2316 nonzeros Presolve removed 245 rows and 262 columns Presolve time: 0.00s Presolved: 606 rows, 519 columns, 1818 nonzeros Variable types: 0 continuous, 519 integer (519 binary) Root relaxation: objective 0.000000e+00, 250 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 0 210 - 0.00000 - - 0s Explored 0 nodes (860 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