fix detection of 'timeout' result of Alt-Ergo 0.95

drivers/alt_ergo_bare.drv

@@ -8,6 +8,7 @@ filename "%f-%t-%g.why"
 valid "Valid"
 invalid "Invalid"
 unknown "I don't know" "Unknown"
+timeout "Timeout"
 fail "typing error:\\(.*\\)$" "Failure : File generation error : \\1"
 time "Valid (%s)"
 time "why3cpulimit time : %s s"

drivers/alt_ergo_model.drv

+
 import "alt_ergo_bare.drv"
 
 theory BuiltIn