HiGHS OTHER_ERROR

Specific Domains Optimization (Mathematical)
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1

What does this mean? Is it infeasible, is it solved? Thx

Running HiGHS 1.12.0 (git hash: 755a8e027a): Copyright (c) 2025 HiGHS under MIT licence terms
LP has 4246 rows; 3330 cols; 15361 nonzeros
Coefficient ranges:
  Matrix  [1e-01, 2e+03]
  Cost    [9e-04, 4e+07]
  Bound   [1e-01, 4e+02]
  RHS     [1e+00, 1e+01]
WARNING: Problem has some excessively large costs
WARNING:    Consider scaling the objective by 1e-2, or setting the user_objective_scale option to -6
Solving LP with useful basis so presolve not used
Using EKK dual simplex solver - serial
  Iteration        Objective     Infeasibilities num(sum)
          0    -8.5248019006e+03 Ph1: 333(469037); Du: 74(8.5267) 0s
       2914     2.1700895546e+14 Pr: 751(3.00469e+17) 5s
Model status        : Not Set
HiGHS run time      :          5.05
2

Maybe it gave up because of the reason explained in the warnings ?

WARNING: Problem has some excessively large costs
WARNING:    Consider scaling the objective by 1e-2, or setting the user_objective_scale option to -6
3

Applied the option it suggested. Now it complains that the cost is very small, but it solves it.

4

Can you share a reproducible example or the MPS file?

1 Like
5

Sure

6

What’s the output of solution_summary? Something weird happened with the status not set. Looks like a bug we can fix