double check bad solve in fathommany

coin-or · Jan 6, 2025 · 989cc14 · 989cc14
1 parent ede8a52
commit 989cc14
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/CbcNode.cpp b/src/CbcNode.cpp
@@ -6735,6 +6735,14 @@ int CbcNode::chooseClpBranch(CbcModel *model,
     int saveLogLevel = simplex->logLevel();
     simplex->setLogLevel(0);
     simplex->dual();
+    if (simplex->status()) {
+#ifdef CBC_MORE_PRINTING
+      model->messageHandler()->message(CBC_FPUMP1, *model->messagesPointer())
+	<< "fathomMany solution -trying again from allslack" << CoinMessageEol;
+#endif
+      simplex->allSlackBasis(true);
+      simplex->dual();
+    }
     simplex->setLogLevel(saveLogLevel);
     double cutoff = model->getCutoff();
     bool goodSolution = true;