current bounds on the number of colors: 0 -- 215 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:32 2012 Optimize a model with 25253 rows, 23239 columns and 98119 nonzeros Presolve removed 19 rows and 2033 columns Presolve time: 0.13s Presolved: 25234 rows, 21206 columns, 96086 nonzeros Variable types: 0 continuous, 21206 integer (21206 binary) Root relaxation: objective 0.000000e+00, 351 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 (351 simplex iterations) in 0.16 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 -- 107 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:32 2012 Optimize a model with 12617 rows, 11629 columns and 48601 nonzeros Presolve removed 19 rows and 1007 columns Presolve time: 0.12s Presolved: 12598 rows, 10622 columns, 47594 nonzeros Variable types: 0 continuous, 10622 integer (10622 binary) Root relaxation: objective 0.000000e+00, 350 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 (350 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 -- 53 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:32 2012 Optimize a model with 6299 rows, 5824 columns and 23842 nonzeros Presolve removed 19 rows and 494 columns Presolve time: 0.04s Presolved: 6280 rows, 5330 columns, 23348 nonzeros Variable types: 0 continuous, 5330 integer (5330 binary) Root relaxation: objective 0.000000e+00, 353 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 (353 simplex iterations) in 0.05 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:33 2012 Optimize a model with 3257 rows, 3029 columns and 11921 nonzeros Presolve removed 19 rows and 247 columns Presolve time: 0.01s Presolved: 3238 rows, 2782 columns, 11674 nonzeros Variable types: 0 continuous, 2782 integer (2782 binary) Root relaxation: objective 0.000000e+00, 352 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 (352 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:33 2012 Optimize a model with 1619 rows, 1524 columns and 5502 nonzeros Presolve removed 19 rows and 114 columns Presolve time: 0.01s Presolved: 1600 rows, 1410 columns, 5388 nonzeros Variable types: 0 continuous, 1410 integer (1410 binary) Root relaxation: objective 0.000000e+00, 349 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 (500 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 16:34:33 2012 Optimize a model with 917 rows, 879 columns and 2751 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 898 rows, 822 columns, 2694 nonzeros Variable types: 0 continuous, 822 integer (822 binary) Root relaxation: objective 0.000000e+00, 349 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 (473 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 16:34:33 2012 Optimize a model with 449 rows, 449 columns and 917 nonzeros Presolve removed 449 rows and 449 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 16:34:33 2012 Optimize a model with 683 rows, 664 columns and 1834 nonzeros Presolve removed 219 rows and 240 columns Presolve time: 0.00s Presolved: 464 rows, 424 columns, 1392 nonzeros Variable types: 0 continuous, 424 integer (424 binary) Root relaxation: objective 0.000000e+00, 218 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 0 187 - 0.00000 - - 0s Explored 0 nodes (658 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