%Error-UNSUPPORTED: t/t_tri_and_eqcase.v:9:29: Unsupported tristate construct: AND in function getEnExprBasedOnOriginalp 9 | logic b = 1'bz === (clk1 & clk2); | ^ ... For error description see https://verilator.org/warn/UNSUPPORTED?v=latest %Error: Internal Error: t/t_tri_and_eqcase.v:9:19: ../V3Ast.cpp:#: Null item passed to setOp2p 9 | logic b = 1'bz === (clk1 & clk2); | ^~~ ... See the manual at https://verilator.org/verilator_doc.html for more assistance.