current bounds on the number of colors: 0 -- 248 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:47:52 2012 Optimize a model with 40672 rows, 31078 columns and 152024 nonzeros Presolve removed 11 rows and 1364 columns Presolve time: 0.21s Presolved: 40661 rows, 29714 columns, 150660 nonzeros Variable types: 0 continuous, 29714 integer (29714 binary) Root relaxation: objective 0.000000e+00, 461 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 (688 simplex iterations) in 0.28 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 16:47:53 2012 Optimize a model with 20460 rows, 15702 columns and 76012 nonzeros Presolve removed 11 rows and 682 columns Presolve time: 0.13s Presolved: 20449 rows, 15020 columns, 75330 nonzeros Variable types: 0 continuous, 15020 integer (15020 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 (681 simplex iterations) in 0.17 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 16:47:53 2012 Optimize a model with 10354 rows, 8014 columns and 38006 nonzeros Presolve removed 11 rows and 341 columns Presolve time: 0.07s Presolved: 10343 rows, 7673 columns, 37665 nonzeros Variable types: 0 continuous, 7673 integer (7673 binary) Root relaxation: objective 0.000000e+00, 471 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 (471 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 16:47:53 2012 Optimize a model with 5138 rows, 4046 columns and 18390 nonzeros Presolve removed 11 rows and 165 columns Presolve time: 0.02s Presolved: 5127 rows, 3881 columns, 18225 nonzeros Variable types: 0 continuous, 3881 integer (3881 binary) Root relaxation: objective 0.000000e+00, 465 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 (465 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:47:53 2012 Optimize a model with 2530 rows, 2062 columns and 8582 nonzeros Presolve removed 11 rows and 77 columns Presolve time: 0.01s Presolved: 2519 rows, 1985 columns, 8505 nonzeros Variable types: 0 continuous, 1985 integer (1985 binary) Root relaxation: objective 0.000000e+00, 476 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 (710 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:47:53 2012 Optimize a model with 1226 rows, 1070 columns and 3678 nonzeros Presolve removed 11 rows and 33 columns Presolve time: 0.00s Presolved: 1215 rows, 1037 columns, 3645 nonzeros Variable types: 0 continuous, 1037 integer (1037 binary) Root relaxation: objective 0.000000e+00, 495 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 (917 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 16:47:53 2012 Optimize a model with 574 rows, 574 columns and 1226 nonzeros Presolve removed 574 rows and 574 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 16:47:53 2012 Optimize a model with 900 rows, 822 columns and 2452 nonzeros Presolve removed 252 rows and 265 columns Presolve time: 0.00s Presolved: 648 rows, 557 columns, 1944 nonzeros Variable types: 0 continuous, 557 integer (557 binary) Root relaxation: objective 0.000000e+00, 261 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 0 233 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (894 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