current bounds on the number of colors: 0 -- 196 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:00 2012 Optimize a model with 19992 rows, 19410 columns and 78596 nonzeros Presolve removed 21 rows and 2058 columns Presolve time: 0.13s Presolved: 19971 rows, 17352 columns, 76538 nonzeros Variable types: 0 continuous, 17352 integer (17352 binary) Root relaxation: objective 0.000000e+00, 322 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 (322 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 -- 98 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:00 2012 Optimize a model with 10094 rows, 9806 columns and 39298 nonzeros Presolve removed 21 rows and 1029 columns Presolve time: 0.09s Presolved: 10073 rows, 8777 columns, 38269 nonzeros Variable types: 0 continuous, 8777 integer (8777 binary) Root relaxation: objective 0.000000e+00, 323 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 (323 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 16:29:01 2012 Optimize a model with 5044 rows, 4906 columns and 19248 nonzeros Presolve removed 21 rows and 504 columns Presolve time: 0.03s Presolved: 5023 rows, 4402 columns, 18744 nonzeros Variable types: 0 continuous, 4402 integer (4402 binary) Root relaxation: objective 0.000000e+00, 322 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 (322 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 16:29:01 2012 Optimize a model with 2620 rows, 2554 columns and 9624 nonzeros Presolve removed 21 rows and 252 columns Presolve time: 0.01s Presolved: 2599 rows, 2302 columns, 9372 nonzeros Variable types: 0 continuous, 2302 integer (2302 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 0.02 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 16:29:01 2012 Optimize a model with 1408 rows, 1378 columns and 4812 nonzeros Presolve removed 21 rows and 126 columns Presolve time: 0.00s Presolved: 1387 rows, 1252 columns, 4686 nonzeros Variable types: 0 continuous, 1252 integer (1252 binary) Root relaxation: objective 0.000000e+00, 314 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 (314 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 16:29:01 2012 Optimize a model with 802 rows, 790 columns and 2406 nonzeros Presolve removed 21 rows and 63 columns Presolve time: 0.00s Presolved: 781 rows, 727 columns, 2343 nonzeros Variable types: 0 continuous, 727 integer (727 binary) Root relaxation: objective 0.000000e+00, 288 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 (391 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 16:29:01 2012 Optimize a model with 398 rows, 398 columns and 802 nonzeros Presolve removed 398 rows and 398 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 16:29:01 2012 Optimize a model with 600 rows, 594 columns and 1604 nonzeros Presolve removed 206 rows and 232 columns Presolve time: 0.00s Presolved: 394 rows, 362 columns, 1182 nonzeros Variable types: 0 continuous, 362 integer (362 binary) Root relaxation: objective 0.000000e+00, 187 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 0 159 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (623 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