我正在尝试使用CBC解决mps文件。它经常挂起很长时间，并且会退出而没有任何消息。
即使找到最佳解决方案，它也会挂起。我不知道为什么它不返回提示。
我已经重新安装了最新版本2.10，并在多台Windows 10计算机上进行了尝试。
在下面提示输入和输出。
C:\my_directory>cbc
Welcome to the CBC MILP Solver
Version: Trunk (unstable)
Build Date: May 3 2019
CoinSolver takes input from arguments ( - switches to stdin)
Enter ? for list of commands or help
Coin:verbose 15
verbose was changed from 0 to 15
Coin:import SF_STD.mps
At line 8 NAME swolf_co
At line 9 ROWS
At line 179948 COLUMNS
At line 539250 RHS
At line 539271 BOUNDS
At line 539402 ENDATA
Problem swolf_co has 179937 rows, 191943 columns and 619924 elements
Coin0008I swolf_co read with 0 errors
Coin:stat
Presolve 18316 (-161621) rows, 19174 (-172769) columns and 138258 (-481666) elements
Statistics for presolved model
Original problem has 24 integers (24 of which binary)
Problem has 18316 rows, 19174 columns (2 with objective) and 138258 elements
There are 1 singletons with objective
Column breakdown:
19165 of type 0.0->inf, 6 of type 0.0->up, 0 of type lo->inf,
0 of type lo->up, 1 of type free, 0 of type fixed,
0 of type -inf->0.0, 2 of type -inf->up, 0 of type 0.0->1.0
Row breakdown:
9660 of type E 0.0, 0 of type E 1.0, 0 of type E -1.0,
1 of type E other, 6 of type G 0.0, 0 of type G 1.0,
1 of type G other, 8646 of type L 0.0, 0 of type L 1.0,
2 of type L other, 0 of type Range 0.0->1.0, 0 of type Range other,
0 of type Free
Coin:solv
Continuous objective value is 1.25864e+08 - 1.81 seconds
Cgl0002I 6 variables fixed
Cgl0004I processed model has 18298 rows, 19156 columns (0 integer (0 of which binary)) and 137182 elements
Cbc3007W No integer variables - nothing to do
Cuts at root node changed objective from 1.25864e+08 to -1.79769e+308
Probing was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
Gomory was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
Knapsack was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
Clique was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
MixedIntegerRounding2 was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
FlowCover was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
TwoMirCuts was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
ZeroHalf was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
Result - Optimal solution found
Objective value: 125864301.49648696
Enumerated nodes: 0
Total iterations: 0
Time (CPU seconds): 905.83
Time (Wallclock seconds): 905.85
Result - Optimal solution found之前的所有内容都快速运行，但是随后打印Cuts at root node changed objective from 1.25864e+08 to -1.79769e+308，并且运行了很长时间。截止切断并没有改变任何东西。该特定线不再出现，但目标仍然从1.25864e + 08变为-1.06e15。然后，该模型大约需要一个小时才能返回到实际目标值1.25864e + 08，这是整数最优解以及LP松弛的解。
它会在几秒钟内解决clp问题。 mps文件是由glpk编写的，并且在CPLEX中可以在几秒钟内解决。
我们将不胜感激。
我已经尝试了多个版本的cbc，但由于相对简单的问题，我仍然有这么长的等待时间。我已经尝试过.lp和.mps格式（clp似乎可以更快地解决.lp），但没有任何变化。