TRACE_GRAPH_INDENT
for (i = 0; i < call->depth * TRACE_GRAPH_INDENT; i++)
for (i = 0; i < trace->depth * TRACE_GRAPH_INDENT; i++)
for (i = 0; i < (depth + 1) * TRACE_GRAPH_INDENT; i++)
for (i = 0; i < call->depth * TRACE_GRAPH_INDENT; i++)