1 \begin{tabular
}{|l|l|l|l|c|c|
}
2 \hline \multicolumn{2}{|c|
}{Proof obligations
} &
\provername{Alt-Ergo
0.99.1} &
\provername{Coq
8.7.1} \\
4 \explanation{G1
} & &
\valid{0.00} &
\noresult\\
6 \explanation{G2
} & &
\unknown{0.00} &
\noresult\\
8 &
\explanation{G2.0
} &
\unknown{0.00} &
\unknown{0.29} \\
10 &
\explanation{G2.1
} &
\valid{0.00} &
\noresult\\
12 \explanation{G3
} & &
\valid{0.00} &
\noresult\\