ce-bench: fix ce-bench

This updates values of already failing counterexamples which were changed
by the fix for z3/encoding_twin in 4b79dcf1.

bench/ce/array_records_Z3,4.6.0.oracle

@@ -110,17 +110,17 @@ bench/ce/array_records.mlw Array_records VC var_overwrite: Timeout
 Counter-example model:File array_records.mlw:
 Line 23:
 i, [[@introduced], [@model_trace:i]] = {"type" : "Integer" ,
-"val" : "2" }
+"val" : "-176" }
 Line 31:
 i, [[@introduced], [@model_trace:i]] = {"type" : "Integer" ,
-"val" : "2" }
+"val" : "-176" }
 
 bench/ce/array_records.mlw Array_records VC var_overwrite: Timeout
 Counter-example model:File array_records.mlw:
 Line 23:
 i, [[@introduced], [@model_trace:i]] = {"type" : "Integer" ,
-"val" : "2" }
+"val" : "-176" }
 Line 25:
 i, [[@introduced], [@model_trace:i]] = {"type" : "Integer" ,
-"val" : "2" }
+"val" : "-176" }