ID0001263: **This issue was created automatically from Mantis Issue 1263. Further discussion may take place here.** --- | **Id** | **Project** | **Category** | **View** | **Due Date** | **Updated** | | --- | --- | --- | --- | --- | --- | | ID0001263 | Frama-C | Kernel | public | 2012-08-08 | 2012-09-19 | | | | | | | | | --- | --- | --- | --- | --- | --- | | **Reporter** | boris | **Assigned To** | virgile | **Resolution** | fixed | | **Priority** | low | **Severity** | feature | **Reproducibility** | always | | **Platform** | - | **OS** | - | **OS Version** | - | | **Product Version** | Frama-C Nitrogen-20111001 | **Target Version** | - | **Fixed in Version** | Frama-C Oxygen-20120901 | ### Description : The code below contains an lval this->gear at positions 1,2. If this->gear is hashed at position 1 using Cil_datatype.Lval.Hashtbl, a find for this->gear fails at position 2. if(inp == up) { if(this->gear < MAX_GEARS && motor_rpm(this, this->gear + 1) >= RPM_MIN) this->gear++; // 1 } else if(inp == down) { if(this->gear > 1 && motor_rpm(this, this->gear + 1) <= RPM_MAX) this->gear--; // 2 } The problem disappears if the lvals are converted to terms with let xtl = Logic_utils.lval_to_term_lval false x in Logic_const.term (TLval xtl) (Cil.typeOfTermLval xtl) and hashed with module TermHT = Hashtbl.Make(struct type t = Cil_types.term let equal = Logic_utils.is_same_term let hash = Logic_utils.hash_term end)