Yices: Use "MCSat+dpllt" for interpolation - #705
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daniel-raffler wants to merge 3 commits into
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Hello,
this PR contains two improvements for interpolation on Yices. First, it adds shutdown hooks during interpolation, so that the solver can be interrupted by the user. Secondly, it switches the "second" solver used for interpolation to
dplltYices uses two solver stacks during interpolation, one for the formulas in
A, and the other for theBformulas. Both stacks have their own solver, and only theAsolver needs to beMCSat. We've so far usedMCSatfor both stacks, however, switching todplltfor theBsolver seems to help performance significantly as that solver is currently still better optimizedHere are the IMC results for 60s runtime:
The scatter plot is a bit sparse as "MCSat+MCSat" will time-out on many of the tasks:
