$timescale
     1 ps
$end

$scope module SystemC $end
$var wire    1  aaaaa  clk       $end
$scope module mod $end
$var wire   37  aaaab  a [36:0]  $end
$var wire    1  aaaac  port_1       $end
$upscope $end
$upscope $end
$enddefinitions  $end

$comment
All initial values are dumped below at time 0 sec = 0 timescale units.
$end

$dumpvars
1aaaaa
b0 aaaab
0aaaac
$end

#25000
0aaaaa

#50000
1aaaaa
b1100 aaaab
1aaaac

#75000
0aaaaa