Index: /issm/trunk-jpl/src/c/modules/Solverx/Solverx.cpp
===================================================================
--- /issm/trunk-jpl/src/c/modules/Solverx/Solverx.cpp	(revision 11714)
+++ /issm/trunk-jpl/src/c/modules/Solverx/Solverx.cpp	(revision 11715)
@@ -36,7 +36,10 @@
 
 	SolverxPetsc(&uf->vector,Kff->matrix,pf->vector,uf0_vector,df_vector,parameters);
-	_assert_(uf);
-	_assert_(uf->vector);
-	VecGetSize(uf->vector,&uf->M);
+	if(uf->vector == NULL){
+		uf->M;
+	}
+	else{
+		VecGetSize(uf->vector,&uf->M);
+	}
 	#else
 	_error_("not supported yet!");