Intermittent CI failure running catalytic_combustion.py example #1999
Description
Problem description
CI jobs are occasionally indicating integration failures in the catalytic_combustion.py example.
Steps to reproduce
- Trigger CI jobs on the main branch.
- Rerunning the job after a failure can result in a successful run.
Behavior
Output from failing cases:
Traceback (most recent call last):
File "/home/runner/work/cantera/cantera/samples/python/onedim/catalytic_combustion.py", line 68, in <module>
surf_phase.advance_coverages(1.0)
File "build/python/cantera/kinetics.pyx", line 943, in cantera.kinetics.InterfaceKinetics.advance_coverages
cantera._utils.CanteraError:
*******************************************************************************
CanteraError thrown by CVodesIntegrator::integrate:
CVodes error encountered. Error code: -3
At t = 0.0583727 and h = 4.24999e-08, the error test failed repeatedly or with |h| = hmin.
Components with largest weighted error estimates:
4: -392.219827383851
9: 20.872449014364545
5: -0.0024577841850999837
1: -0.0002620613619660072
0: -0.00011714129027371423
2: -0.00011122842455574104
10: 9.99021834700569e-05
3: -5.6773903789372044e-05
7: -3.898277339646901e-157
8: -9.688141290158232e-158
*******************************************************************************
System information
- Cantera version:
mainat d7f7a0a - OS: Ubuntu 24.04
- Python 3.10
Attachments
- Full log from one failing run: python310_ubuntu2404.txt
Additional context