Fix error handling in `initialize_state`

[fmoletta]

initialize_state now returns the correct errors when either program_base or execution_base are None Also closes #1638

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.70%. Comparing base (105ca3a) to head (880ba3c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1657 +/- ## ========================================== - Coverage 96.70% 96.70% -0.01% ========================================== Files 95 95 Lines 38154 38151 -3 ========================================== - Hits 36897 36894 -3 Misses 1257 1257 ```

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Benchmark Results for unmodified programs :rocket:

Command	Mean [s]	Min [s]	Max [s]	Relative
base big_factorial	2.261 ± 0.024	2.239	2.307	1.00
head big_factorial	2.263 ± 0.022	2.235	2.294	1.00 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base big_fibonacci	2.266 ± 0.022	2.245	2.313	1.00
head big_fibonacci	2.282 ± 0.050	2.249	2.386	1.01 ± 0.02

Command	Mean [s]	Min [s]	Max [s]	Relative
base blake2s_integration_benchmark	8.485 ± 0.124	8.265	8.665	1.01 ± 0.02
head blake2s_integration_benchmark	8.399 ± 0.131	8.248	8.575	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base compare_arrays_200000	2.308 ± 0.010	2.298	2.322	1.00
head compare_arrays_200000	2.310 ± 0.006	2.299	2.320	1.00 ± 0.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base dict_integration_benchmark	1.444 ± 0.010	1.431	1.460	1.01 ± 0.01
head dict_integration_benchmark	1.435 ± 0.013	1.420	1.454	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base field_arithmetic_get_square_benchmark	1.294 ± 0.010	1.283	1.311	1.00
head field_arithmetic_get_square_benchmark	1.309 ± 0.023	1.288	1.367	1.01 ± 0.02

Command	Mean [s]	Min [s]	Max [s]	Relative
base integration_builtins	8.533 ± 0.326	8.287	9.384	1.02 ± 0.04
head integration_builtins	8.392 ± 0.146	8.257	8.575	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base keccak_integration_benchmark	8.641 ± 0.140	8.512	8.827	1.00
head keccak_integration_benchmark	8.714 ± 0.148	8.496	8.840	1.01 ± 0.02

Command	Mean [s]	Min [s]	Max [s]	Relative
base linear_search	2.311 ± 0.011	2.300	2.336	1.00
head linear_search	2.330 ± 0.019	2.314	2.378	1.01 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base math_cmp_and_pow_integration_benchmark	1.552 ± 0.010	1.542	1.570	1.00 ± 0.01
head math_cmp_and_pow_integration_benchmark	1.549 ± 0.010	1.537	1.565	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base math_integration_benchmark	1.431 ± 0.032	1.406	1.500	1.00
head math_integration_benchmark	1.442 ± 0.035	1.413	1.508	1.01 ± 0.03

Command	Mean [s]	Min [s]	Max [s]	Relative
base memory_integration_benchmark	1.252 ± 0.012	1.231	1.270	1.00 ± 0.01
head memory_integration_benchmark	1.249 ± 0.012	1.230	1.267	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base operations_with_data_structures_benchmarks	1.600 ± 0.006	1.590	1.609	1.00
head operations_with_data_structures_benchmarks	1.600 ± 0.006	1.592	1.608	1.00 ± 0.01

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
base pedersen	593.0 ± 3.1	588.2	600.0	1.00
head pedersen	593.2 ± 6.3	589.9	610.9	1.00 ± 0.01

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
base poseidon_integration_benchmark	979.3 ± 10.5	960.2	998.8	1.00
head poseidon_integration_benchmark	984.5 ± 7.2	975.4	994.6	1.01 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base secp_integration_benchmark	1.878 ± 0.013	1.864	1.911	1.01 ± 0.01
head secp_integration_benchmark	1.861 ± 0.008	1.850	1.880	1.00

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
base set_integration_benchmark	724.1 ± 3.0	720.5	729.3	1.00 ± 0.01
head set_integration_benchmark	723.6 ± 3.8	719.0	731.9	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base uint256_integration_benchmark	4.643 ± 0.054	4.560	4.753	1.00 ± 0.04
head uint256_integration_benchmark	4.637 ± 0.164	4.552	5.098	1.00