diff options
author | Andrew Reynolds <andrew.j.reynolds@gmail.com> | 2018-08-17 15:09:05 -0500 |
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committer | GitHub <noreply@github.com> | 2018-08-17 15:09:05 -0500 |
commit | ee4004505fa7f086872880d2d693c0608af29050 (patch) | |
tree | 3c1f155debe7367c3ece51e8a6c5af87c75cbcac /src/theory/output_channel.h | |
parent | 6d65aa41a7e218469e99f476259cccb08c4c46c1 (diff) |
Remove support for flipDecision (#2319)
Diffstat (limited to 'src/theory/output_channel.h')
-rw-r--r-- | src/theory/output_channel.h | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/src/theory/output_channel.h b/src/theory/output_channel.h index fb0a92cc2..bb8103891 100644 --- a/src/theory/output_channel.h +++ b/src/theory/output_channel.h @@ -156,48 +156,6 @@ class OutputChannel { virtual void requirePhase(TNode n, bool phase) = 0; /** - * Flips the most recent unflipped decision to the other phase and - * returns true. If all decisions have been flipped, the root - * decision is re-flipped and flipDecision() returns false. If no - * decisions (flipped nor unflipped) are on the decision stack, the - * state is not affected and flipDecision() returns false. - * - * For example, if l1, l2, and l3 are all decision literals, and - * have been decided in positive phase, a series of flipDecision() - * calls has the following effects: - * - * l1 l2 l3 <br/> - * l1 l2 ~l3 <br/> - * l1 ~l2 <br/> - * ~l1 <br/> - * l1 (and flipDecision() returns false) - * - * Naturally, flipDecision() might be interleaved with search. For example: - * - * l1 l2 l3 <br/> - * flipDecision() <br/> - * l1 l2 ~l3 <br/> - * flipDecision() <br/> - * l1 ~l2 <br/> - * SAT decides l3 <br/> - * l1 ~l2 l3 <br/> - * flipDecision() <br/> - * l1 ~l2 ~l3 <br/> - * flipDecision() <br/> - * ~l1 <br/> - * SAT decides l2 <br/> - * ~l1 l2 <br/> - * flipDecision() <br/> - * ~l1 ~l2 <br/> - * flipDecision() returns FALSE<br/> - * l1 - * - * @return true if a decision was flipped; false if no decision - * could be flipped, or if the root decision was re-flipped - */ - virtual bool flipDecision() = 0; - - /** * Notification from a theory that it realizes it is incomplete at * this context level. If SAT is later determined by the * TheoryEngine, it should actually return an UNKNOWN result. |