If the validator of a combined run/compare script exits first with WA, override TLE.

See
Kattis/problemtools#77
for an in-depth discussion.

With this, all test submissions of the example guess problem give the
expected answer, but we need to do some cleanup and UI/import changes
before we can close #465.

Author: meisterT

judge/testcase_run.sh

@@ -311,9 +311,21 @@ resourceinfo="\
 runtime: ${program_cputime}s cpu, ${program_walltime}s wall
 memory used: ${memory_bytes} bytes"
 if grep '^time-result: .*timelimit' program.meta >/dev/null 2>&1 ; then
-	echo "Timelimit exceeded." >>system.out
-	echo "$resourceinfo" >>system.out
-	cleanexit ${E_TIMELIMIT:-1}
+	if [ $COMBINED_RUN_COMPARE -eq 1 ] && grep '^exitcode: 43' compare.meta > /dev/null 2>&1 ; then
+		# For interactive problems with combined run/compare scripts, a
+		# WA may override TLE.
+		# FIXME: For now, we only write to compare.meta if the
+		# validator exited first, but we should always write the meta
+		# file and include information about which exited first and
+		# when.
+		echo "Timelimit exceeded, but validator exited first with WA." >>system.out
+		echo "$resourceinfo" >>system.out
+		cleanexit ${E_WRONG_ANSWER:-1}
+	else
+		echo "Timelimit exceeded." >>system.out
+		echo "$resourceinfo" >>system.out
+		cleanexit ${E_TIMELIMIT:-1}
+	fi
 fi
 if [ "$program_exit" != "0" ]; then
 	echo "Non-zero exitcode $program_exit" >>system.out