Distributions within solid phase (not physically meaningful) are re-initialized in the ComputeVelocityD3Q19 routine to a negative value

cpu/D3Q19.cpp

@@ -385,6 +385,13 @@ extern "C" void ComputeVelocityD3Q19(char *ID, double *disteven, double *distodd
 			//........................................................................
 
 		}
+		else{
+			for(int q=0; q<9; q++){
+				f_even[q*N+n] = -1.0;
+				f_odd[q*N+n] = -1.0;
+			}
+			f_even[9*N+n] = -1.0;
+		}
 	}
 }