current bounds on the number of colors: 0 -- 198 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:23 2012 Optimize a model with 19899 rows, 19801 columns and 78705 nonzeros Presolve removed 22 rows and 2178 columns Presolve time: 0.13s Presolved: 19877 rows, 17623 columns, 76527 nonzeros Variable types: 0 continuous, 17623 integer (17623 binary) Root relaxation: objective 0.000000e+00, 324 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 (324 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 -- 99 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:23 2012 Optimize a model with 9949 rows, 9901 columns and 38955 nonzeros Presolve removed 22 rows and 1078 columns Presolve time: 0.09s Presolved: 9927 rows, 8823 columns, 37877 nonzeros Variable types: 0 continuous, 8823 integer (8823 binary) Root relaxation: objective 0.000000e+00, 331 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 (331 simplex iterations) in 0.10 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 -- 49 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:23 2012 Optimize a model with 4974 rows, 4951 columns and 19080 nonzeros Presolve removed 22 rows and 528 columns Presolve time: 0.03s Presolved: 4952 rows, 4423 columns, 18552 nonzeros Variable types: 0 continuous, 4423 integer (4423 binary) Root relaxation: objective 0.000000e+00, 325 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 (325 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 -- 24 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:23 2012 Optimize a model with 2586 rows, 2575 columns and 9540 nonzeros Presolve removed 22 rows and 264 columns Presolve time: 0.01s Presolved: 2564 rows, 2311 columns, 9276 nonzeros Variable types: 0 continuous, 2311 integer (2311 binary) Root relaxation: objective 0.000000e+00, 323 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 (323 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:23 2012 Optimize a model with 1392 rows, 1387 columns and 4770 nonzeros Presolve removed 22 rows and 132 columns Presolve time: 0.00s Presolved: 1370 rows, 1255 columns, 4638 nonzeros Variable types: 0 continuous, 1255 integer (1255 binary) Root relaxation: objective 0.000000e+00, 310 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 (434 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 16:29:23 2012 Optimize a model with 795 rows, 793 columns and 2385 nonzeros Presolve removed 22 rows and 66 columns Presolve time: 0.00s Presolved: 773 rows, 727 columns, 2319 nonzeros Variable types: 0 continuous, 727 integer (727 binary) Root relaxation: objective 0.000000e+00, 320 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 (320 simplex iterations) in 0.00 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 16:29:23 2012 Optimize a model with 397 rows, 397 columns and 795 nonzeros Presolve removed 397 rows and 397 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 16:29:24 2012 Optimize a model with 596 rows, 595 columns and 1590 nonzeros Presolve removed 206 rows and 232 columns Presolve time: 0.00s Presolved: 390 rows, 363 columns, 1170 nonzeros Variable types: 0 continuous, 363 integer (363 binary) Root relaxation: objective 0.000000e+00, 190 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 0 162 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (625 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