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Infeasible instead of 5552530

14

Older versions, e.g. from August last year still compute 5552530, current master results in infeasible. [value_5552530.lp.txt](https://github.com/coin-or/Cbc/files/11419167/value_5552530.lp.txt)

christoph-cullmann

precision in solution file "all"

1

Hi, im testing with cbc solution files and my model. [Model.zip](https://github.com/coin-or/Cbc/files/12803089/Model.zip) ``` CBC.exe "model.mps" -directory "%Temp%" -solve -printingOptions all -solution "all.cbc" -printingOptions allcsv -solution "allcsv.cbc" ``` with model.mps i want...

raller09

Added function to the C API:

1

Hi team, thanks for the wonderful work you're doing. While developing a solver driver using CBC through the C API, I came across a few functionalities that I just could...

mapgccv

Lazy and generated constraint model much slower than complete model

7

While I do understand a certain overhead of lazy constraints, the following example seems overly drastic to me. Maybe there is some issue with lazy constraint handling, or maybe I...

ciderale

Hi, I have a query on differences between solver outputs from Cplex and CBC. My data file that i want to optimize, while solved with CPLEX, gives an optimal solution...

vignesh1987

Wrong optimal solution - Random binpacking problem

2

Hello, I was solving a bin packing problem and encountered a bug-like situation. ## How to reproduce - Python: 3.11 - Python-MIP: 1.15.0 - CBC: may be 2.10 (can't confirm)...

SaitoTsutomu

Help~for run cbc examples

1

Hello, I am a beginner in C++and would like to run relevant examples in CBC locally. My operating environment is as follows: **OS**: Mac OS **Editor**: VScode When I directly...

wozhendeshuai

build error on src/CbcHeuristicDive.cpp / code questions:

3

Hello all, I build on Ubuntu 22.04.2 LTS. I build release CoinMP-1.7.6, but the code in question seems to be the same compared to the latest release. I get for...

leginee

CBC reports a "feasible" problem as "infeasible" despite presolve being turned off

2

Hi everyone, I am currently encountering a weird situation where I have a LP model that **should have** had an optimal solution but it was judged by `CBC Solver` as...

tle4336

CBC MILP Solver returns "Infeasible" status, but lpsolve in R gives "feasible"

17

I am currently encountering a very weird issue with the `PULP_CBC_CMD` solver via `pulp` package in Python (CBC MILP Solver version 2.10.3). Despite playing around with the parameter options `gapAbs`...

tle4336