[20:55:01] ╭──────────────────────────────────────────────────────────────────────────────────────────── 🤖 Prompt: ────────────────────────────────────────────────────────────────────────────────────────────╮ utils.py:24
           │ Write Python code that extends the `Module` class below to complete the following task.                                                                                                            │
           │                                                                                                                                                                                                    │
           │ > The following program is a mutual exclusion protocol for two processes due to Pnueli. There is a single shared variable s which is either 0 or 1, and initially 1. Besides, each process has a   │
           │ local Boolean variable y that initially equals 0. The program text for each process Pi (i=0,1) is as follows:  l0: loop forever do begin l1: Noncritical section l2: (yi, s) := (1, i); l3: wait   │
           │ until ((y1−i = 0) ∨ (s ̸= i)); l4: Critical section l5: yi := 0 end.  Here, the statement (yi, s) := (1, i); is a multiple assignment in which variable yi := 1 and s := i is a single, atomic      │
           │ step. Model a parallel composition of P0 and P1. Write a property that checks whether the algorithm ensures mutual exclusion and a property that checks whether the algorithm ensures starvation   │
           │ freedom. Use the variable names given in the text.                                                                                                                                                 │
           │                                                                                                                                                                                                    │
           │ Reply with your Python code inside one unique code block.                                                                                                                                          │
           │                                                                                                                                                                                                    │
           │ ```python                                                                                                                                                                                          │
           │ class Module:                                                                                                                                                                                      │
           │     """An abstract class to represent a UCLID5 module."""                                                                                                                                          │
           │                                                                                                                                                                                                    │
           │     def types(self):                                                                                                                                                                               │
           │         """(Optional) Defines the type declarations.                                                                                                                                               │
           │         For example, the following implementation defines a 8-bit type called T:                                                                                                                   │
           │         ```                                                                                                                                                                                        │
           │         def types(self):                                                                                                                                                                           │
           │             self.T = BitVector(8)                                                                                                                                                                  │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def locals(self):                                                                                                                                                                              │
           │         """(Optional) Defines the local variables and their types.                                                                                                                                 │
           │         For example, the following implementation defines an 8-bit variable x                                                                                                                      │
           │         and an integer variable y:                                                                                                                                                                 │
           │         ```                                                                                                                                                                                        │
           │         def locals(self):                                                                                                                                                                          │
           │             self.x = BitVector(8)                                                                                                                                                                  │
           │             self.y = Integer()                                                                                                                                                                     │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def inputs(self):                                                                                                                                                                              │
           │         """(Optional) Defines the input variables and their types.                                                                                                                                 │
           │         For example, the following implementation defines an input variable x,                                                                                                                     │
           │         which is an array of 8-bit bitvectors indexed by 2-bit bitvectors:                                                                                                                         │
           │         ```                                                                                                                                                                                        │
           │         def inputs(self):                                                                                                                                                                          │
           │             self.x = Array(BitVector(2), BitVector(8))                                                                                                                                             │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def outputs(self):                                                                                                                                                                             │
           │         """(Optional) Defines the output variables and their types.                                                                                                                                │
           │         For example, the following implementation defines an output variable y,                                                                                                                    │
           │         which is a real number:                                                                                                                                                                    │
           │         ```                                                                                                                                                                                        │
           │         def outputs(self):                                                                                                                                                                         │
           │             self.y = Real()                                                                                                                                                                        │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def shared_vars(self):                                                                                                                                                                         │
           │         """(Optional) Defines the shared variables and their types.                                                                                                                                │
           │         For example, the following implementation defines a shared variable z,                                                                                                                     │
           │         which is an array of booleans indexed by integers:                                                                                                                                         │
           │         ```                                                                                                                                                                                        │
           │         def shared_vars(self):                                                                                                                                                                     │
           │             self.z = Array(Integer(), Boolean())                                                                                                                                                   │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def instances(self):                                                                                                                                                                           │
           │         """(Optional) Defines the instances of other modules and relates their                                                                                                                     │
           │         input, output, and shared variables to local variables. Every instance                                                                                                                     │
           │         variable must be related to a local variable. For example, let M be                                                                                                                        │
           │         another module with inputs x and y, and output z. The following                                                                                                                            │
           │         implementation defines an instance of M called m, and connects M's                                                                                                                         │
           │         input variable x to the local variable self.a, M's input variable y to                                                                                                                     │
           │         the local variable self.b, and M's output variable z to the local                                                                                                                          │
           │         variable self.c:                                                                                                                                                                           │
           │         ```                                                                                                                                                                                        │
           │         def instances(self):                                                                                                                                                                       │
           │             self.m = M(x=self.a, y=self.b, z=self.c)                                                                                                                                               │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def init(self):                                                                                                                                                                                │
           │         """(Optional) Defines how variables are initialized.                                                                                                                                       │
           │         For example, the following implementation initializes x to 0 if y is                                                                                                                       │
           │         greater than or equal to 20:                                                                                                                                                               │
           │         ```                                                                                                                                                                                        │
           │         def init(self):                                                                                                                                                                            │
           │             if self.y >= 20:                                                                                                                                                                       │
           │                 self.x = 0                                                                                                                                                                         │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def next(self):                                                                                                                                                                                │
           │         """(Optional) Defines the transition relation.                                                                                                                                             │
           │         For example, the following implementation increments x or decrements y                                                                                                                     │
           │         depending on z:                                                                                                                                                                            │
           │         ```                                                                                                                                                                                        │
           │         def next(self):                                                                                                                                                                            │
           │             if self.z:                                                                                                                                                                             │
           │                 self.x = self.x + 1                                                                                                                                                                │
           │             else:                                                                                                                                                                                  │
           │                 self.y = self.y - 1                                                                                                                                                                │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def specification(self):                                                                                                                                                                       │
           │         """(Optional) Defines the specification in terms of invariant properties.                                                                                                                  │
           │                                                                                                                                                                                                    │
           │         Returns:                                                                                                                                                                                   │
           │             bool: True if the specification is satisfied, False otherwise.                                                                                                                         │
           │                                                                                                                                                                                                    │
           │         For example, the following implementation defines two invariants:                                                                                                                          │
           │         ```                                                                                                                                                                                        │
           │         def specification(self):                                                                                                                                                                   │
           │             return self.x < 10 and self.y > 0                                                                                                                                                      │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def proof(self):                                                                                                                                                                               │
           │         """(Optional) Defines the control block.                                                                                                                                                   │
           │         For example, the following implementation uses 1-induction to prove                                                                                                                        │
           │         that the specification always holds:                                                                                                                                                       │
           │         ```                                                                                                                                                                                        │
           │         def proof(self):                                                                                                                                                                           │
           │             induction(1)                                                                                                                                                                           │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │ ```                                                                                                                                                                                                │
           │                                                                                                                                                                                                    │
           │ I can definitely do that! Here is the Python code:                                                                                                                                                 │
           │ ```python                                                                                                                                                                                          │
           │                                                                                                                                                                                                    │
           ╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
[20:55:04] ╭──────────────────────────────────────────────────── 🧠 Response: ────────────────────────────────────────────────────╮                                                                               utils.py:42
           │ class MutualExclusion(Module):                                                                                       │
           │     def shared_vars(self):                                                                                           │
           │         self.s = BitVector(1)                                                                                        │
           │                                                                                                                      │
           │     def locals(self):                                                                                                │
           │         self.y0 = BitVector(1)                                                                                       │
           │         self.y1 = BitVector(1)                                                                                       │
           │                                                                                                                      │
           │     def next(self):                                                                                                  │
           │         self.y0_next = self.y0                                                                                       │
           │         self.y1_next = self.y1                                                                                       │
           │                                                                                                                      │
           │         if self.y0_next == BitVector(0):                                                                             │
           │             self.y0_next = BitVector(1)                                                                              │
           │             self.s_next = BitVector(0)                                                                               │
           │         elif self.s == BitVector(0):                                                                                 │
           │             self.s_next = self.s                                                                                     │
           │         elif self.y1_next == BitVector(0):                                                                           │
           │             self.y1_next = BitVector(1)                                                                              │
           │             self.s_next = BitVector(1)                                                                               │
           │                                                                                                                      │
           │         self.y0 = self.y0_next                                                                                       │
           │         self.y1 = self.y1_next                                                                                       │
           │         self.s = self.s_next                                                                                         │
           │                                                                                                                      │
           │     def specification(self):                                                                                         │
           │         mutual_exclusion = self.y0_next + self.s_next == BitVector(1) and self.y1_next + self.s_next == BitVector(1) │
           │         starvation_freedom = self.y0_next + self.y1_next <= BitVector(1)                                             │
           │                                                                                                                      │
           │         return mutual_exclusion, starvation_freedom                                                                  │
           │ ```                                                                                                                  │
           ╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
           ╭─────────────────────────────────────────────────── 🤖 Extracted: ────────────────────────────────────────────────────╮                                                                               utils.py:24
           │                                                                                                                      │
           │ class MutualExclusion(Module):                                                                                       │
           │     def shared_vars(self):                                                                                           │
           │         self.s = BitVector(1)                                                                                        │
           │                                                                                                                      │
           │     def locals(self):                                                                                                │
           │         self.y0 = BitVector(1)                                                                                       │
           │         self.y1 = BitVector(1)                                                                                       │
           │                                                                                                                      │
           │     def next(self):                                                                                                  │
           │         self.y0_next = self.y0                                                                                       │
           │         self.y1_next = self.y1                                                                                       │
           │                                                                                                                      │
           │         if self.y0_next == BitVector(0):                                                                             │
           │             self.y0_next = BitVector(1)                                                                              │
           │             self.s_next = BitVector(0)                                                                               │
           │         elif self.s == BitVector(0):                                                                                 │
           │             self.s_next = self.s                                                                                     │
           │         elif self.y1_next == BitVector(0):                                                                           │
           │             self.y1_next = BitVector(1)                                                                              │
           │             self.s_next = BitVector(1)                                                                               │
           │                                                                                                                      │
           │         self.y0 = self.y0_next                                                                                       │
           │         self.y1 = self.y1_next                                                                                       │
           │         self.s = self.s_next                                                                                         │
           │                                                                                                                      │
           │     def specification(self):                                                                                         │
           │         mutual_exclusion = self.y0_next + self.s_next == BitVector(1) and self.y1_next + self.s_next == BitVector(1) │
           │         starvation_freedom = self.y0_next + self.y1_next <= BitVector(1)                                             │
           │                                                                                                                      │
           │         return mutual_exclusion, starvation_freedom                                                                  │
           ╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
[20:55:05] ╭────────── 🤖 Repaired: ──────────╮                                                                                                                                                                   utils.py:24
           │ class MutualExclusion(Module):   │
           │   def locals(self):              │
           │     self.s = int                 │
           │     self.s_next = int            │
           │     self.y0_next = BitVector(1)  │
           │     self.y1_next = BitVector(1)  │
           │     self.y0 = BitVector(1)       │
           │     self.y1 = BitVector(1)       │
           │                                  │
           │   def next(self):                │
           │     self.y0_next = self.y0       │
           │     self.y1_next = self.y1       │
           │     if (self.y0_next == ??):     │
           │       self.y0_next = ??          │
           │       self.s_next = ??           │
           │     else:                        │
           │       if (self.s == ??):         │
           │         self.s_next = self.s     │
           │       else:                      │
           │         if (self.y1_next == ??): │
           │           self.y1_next = ??      │
           │           self.s_next = ??       │
           │     self.y0 = self.y0_next       │
           │     self.y1 = self.y1_next       │
           │     self.s = self.s_next         │
           │                                  │
           │                                  │
           ╰──────────────────────────────────╯
           ╭──────────────────────────────────────────────────────────────────────────────────────────── 🤖 Prompt: ────────────────────────────────────────────────────────────────────────────────────────────╮ utils.py:24
           │                                                                                                                                                                                                    │
           │ Fix the following Python code by replacing every occurrence of `??` with the correct code.                                                                                                         │
           │ ```python                                                                                                                                                                                          │
           │ class MutualExclusion(Module):                                                                                                                                                                     │
           │   def locals(self):                                                                                                                                                                                │
           │     self.s = int                                                                                                                                                                                   │
           │     self.s_next = int                                                                                                                                                                              │
           │     self.y0_next = BitVector(1)                                                                                                                                                                    │
           │     self.y1_next = BitVector(1)                                                                                                                                                                    │
           │     self.y0 = BitVector(1)                                                                                                                                                                         │
           │     self.y1 = BitVector(1)                                                                                                                                                                         │
           │                                                                                                                                                                                                    │
           │   def next(self):                                                                                                                                                                                  │
           │     self.y0_next = self.y0                                                                                                                                                                         │
           │     self.y1_next = self.y1                                                                                                                                                                         │
           │     if (self.y0_next == ??):                                                                                                                                                                       │
           │       self.y0_next = ??                                                                                                                                                                            │
           │       self.s_next = ??                                                                                                                                                                             │
           │     else:                                                                                                                                                                                          │
           │       if (self.s == ??):                                                                                                                                                                           │
           │         self.s_next = self.s                                                                                                                                                                       │
           │       else:                                                                                                                                                                                        │
           │         if (self.y1_next == ??):                                                                                                                                                                   │
           │           self.y1_next = ??                                                                                                                                                                        │
           │           self.s_next = ??                                                                                                                                                                         │
           │     self.y0 = self.y0_next                                                                                                                                                                         │
           │     self.y1 = self.y1_next                                                                                                                                                                         │
           │     self.s = self.s_next                                                                                                                                                                           │
           │                                                                                                                                                                                                    │
           │                                                                                                                                                                                                    │
           │ ```                                                                                                                                                                                                │
           │ Make sure that your code extends the `Module` class below and that it completes the following task.                                                                                                │
           │                                                                                                                                                                                                    │
           │ > The following program is a mutual exclusion protocol for two processes due to Pnueli. There is a single shared variable s which is either 0 or 1, and initially 1. Besides, each process has a   │
           │ local Boolean variable y that initially equals 0. The program text for each process Pi (i=0,1) is as follows:  l0: loop forever do begin l1: Noncritical section l2: (yi, s) := (1, i); l3: wait   │
           │ until ((y1−i = 0) ∨ (s ̸= i)); l4: Critical section l5: yi := 0 end.  Here, the statement (yi, s) := (1, i); is a multiple assignment in which variable yi := 1 and s := i is a single, atomic      │
           │ step. Model a parallel composition of P0 and P1. Write a property that checks whether the algorithm ensures mutual exclusion and a property that checks whether the algorithm ensures starvation   │
           │ freedom. Use the variable names given in the text.                                                                                                                                                 │
           │                                                                                                                                                                                                    │
           │ Reply with your Python code inside one unique code block.                                                                                                                                          │
           │                                                                                                                                                                                                    │
           │ ```python                                                                                                                                                                                          │
           │ class Module:                                                                                                                                                                                      │
           │     """An abstract class to represent a UCLID5 module."""                                                                                                                                          │
           │                                                                                                                                                                                                    │
           │     def types(self):                                                                                                                                                                               │
           │         """(Optional) Defines the type declarations.                                                                                                                                               │
           │         For example, the following implementation defines a 8-bit type called T:                                                                                                                   │
           │         ```                                                                                                                                                                                        │
           │         def types(self):                                                                                                                                                                           │
           │             self.T = BitVector(8)                                                                                                                                                                  │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def locals(self):                                                                                                                                                                              │
           │         """(Optional) Defines the local variables and their types.                                                                                                                                 │
           │         For example, the following implementation defines an 8-bit variable x                                                                                                                      │
           │         and an integer variable y:                                                                                                                                                                 │
           │         ```                                                                                                                                                                                        │
           │         def locals(self):                                                                                                                                                                          │
           │             self.x = BitVector(8)                                                                                                                                                                  │
           │             self.y = Integer()                                                                                                                                                                     │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def inputs(self):                                                                                                                                                                              │
           │         """(Optional) Defines the input variables and their types.                                                                                                                                 │
           │         For example, the following implementation defines an input variable x,                                                                                                                     │
           │         which is an array of 8-bit bitvectors indexed by 2-bit bitvectors:                                                                                                                         │
           │         ```                                                                                                                                                                                        │
           │         def inputs(self):                                                                                                                                                                          │
           │             self.x = Array(BitVector(2), BitVector(8))                                                                                                                                             │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def outputs(self):                                                                                                                                                                             │
           │         """(Optional) Defines the output variables and their types.                                                                                                                                │
           │         For example, the following implementation defines an output variable y,                                                                                                                    │
           │         which is a real number:                                                                                                                                                                    │
           │         ```                                                                                                                                                                                        │
           │         def outputs(self):                                                                                                                                                                         │
           │             self.y = Real()                                                                                                                                                                        │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def shared_vars(self):                                                                                                                                                                         │
           │         """(Optional) Defines the shared variables and their types.                                                                                                                                │
           │         For example, the following implementation defines a shared variable z,                                                                                                                     │
           │         which is an array of booleans indexed by integers:                                                                                                                                         │
           │         ```                                                                                                                                                                                        │
           │         def shared_vars(self):                                                                                                                                                                     │
           │             self.z = Array(Integer(), Boolean())                                                                                                                                                   │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def instances(self):                                                                                                                                                                           │
           │         """(Optional) Defines the instances of other modules and relates their                                                                                                                     │
           │         input, output, and shared variables to local variables. Every instance                                                                                                                     │
           │         variable must be related to a local variable. For example, let M be                                                                                                                        │
           │         another module with inputs x and y, and output z. The following                                                                                                                            │
           │         implementation defines an instance of M called m, and connects M's                                                                                                                         │
           │         input variable x to the local variable self.a, M's input variable y to                                                                                                                     │
           │         the local variable self.b, and M's output variable z to the local                                                                                                                          │
           │         variable self.c:                                                                                                                                                                           │
           │         ```                                                                                                                                                                                        │
           │         def instances(self):                                                                                                                                                                       │
           │             self.m = M(x=self.a, y=self.b, z=self.c)                                                                                                                                               │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def init(self):                                                                                                                                                                                │
           │         """(Optional) Defines how variables are initialized.                                                                                                                                       │
           │         For example, the following implementation initializes x to 0 if y is                                                                                                                       │
           │         greater than or equal to 20:                                                                                                                                                               │
           │         ```                                                                                                                                                                                        │
           │         def init(self):                                                                                                                                                                            │
           │             if self.y >= 20:                                                                                                                                                                       │
           │                 self.x = 0                                                                                                                                                                         │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def next(self):                                                                                                                                                                                │
           │         """(Optional) Defines the transition relation.                                                                                                                                             │
           │         For example, the following implementation increments x or decrements y                                                                                                                     │
           │         depending on z:                                                                                                                                                                            │
           │         ```                                                                                                                                                                                        │
           │         def next(self):                                                                                                                                                                            │
           │             if self.z:                                                                                                                                                                             │
           │                 self.x = self.x + 1                                                                                                                                                                │
           │             else:                                                                                                                                                                                  │
           │                 self.y = self.y - 1                                                                                                                                                                │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def specification(self):                                                                                                                                                                       │
           │         """(Optional) Defines the specification in terms of invariant properties.                                                                                                                  │
           │                                                                                                                                                                                                    │
           │         Returns:                                                                                                                                                                                   │
           │             bool: True if the specification is satisfied, False otherwise.                                                                                                                         │
           │                                                                                                                                                                                                    │
           │         For example, the following implementation defines two invariants:                                                                                                                          │
           │         ```                                                                                                                                                                                        │
           │         def specification(self):                                                                                                                                                                   │
           │             return self.x < 10 and self.y > 0                                                                                                                                                      │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │                                                                                                                                                                                                    │
           │     def proof(self):                                                                                                                                                                               │
           │         """(Optional) Defines the control block.                                                                                                                                                   │
           │         For example, the following implementation uses 1-induction to prove                                                                                                                        │
           │         that the specification always holds:                                                                                                                                                       │
           │         ```                                                                                                                                                                                        │
           │         def proof(self):                                                                                                                                                                           │
           │             induction(1)                                                                                                                                                                           │
           │         ```                                                                                                                                                                                        │
           │         """                                                                                                                                                                                        │
           │         pass                                                                                                                                                                                       │
           │ ```                                                                                                                                                                                                │
           │                                                                                                                                                                                                    │
           │ I can definitely do that! Here is the fixed Python code:                                                                                                                                           │
           │ ```python                                                                                                                                                                                          │
           │                                                                                                                                                                                                    │
           ╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
[20:55:08] ╭──────────── 🧠 Response: ────────────╮                                                                                                                                                               utils.py:42
           │ class MutualExclusion(Module):       │
           │   def locals(self):                  │
           │     self.s = BitVector(1)            │
           │     self.s_next = BitVector(1)       │
           │     self.y0_next = BitVector(1)      │
           │     self.y1_next = BitVector(1)      │
           │     self.y0 = BitVector(1)           │
           │     self.y1 = BitVector(1)           │
           │                                      │
           │   def next(self):                    │
           │     self.y0_next = self.y0           │
           │     self.y1_next = self.y1           │
           │     if (self.y0_next == self.y1):    │
           │       self.y0_next = 1 - self.y0     │
           │       self.s_next = 1 - self.s       │
           │     else:                            │
           │       if (self.s == self.y1_next):   │
           │         self.s_next = self.s         │
           │       else:                          │
           │         if (self.y1_next == self.s): │
           │           self.y1_next = 1 - self.y1 │
           │           self.s_next = 1 - self.s   │
           │     self.y0 = self.y0_next           │
           │     self.y1 = self.y1_next           │
           │     self.s = self.s_next             │
           │ ```                                  │
           ╰──────────────────────────────────────╯
           ╭─────────── 🤖 Extracted: ────────────╮                                                                                                                                                               utils.py:24
           │                                      │
           │ class MutualExclusion(Module):       │
           │   def locals(self):                  │
           │     self.s = BitVector(1)            │
           │     self.s_next = BitVector(1)       │
           │     self.y0_next = BitVector(1)      │
           │     self.y1_next = BitVector(1)      │
           │     self.y0 = BitVector(1)           │
           │     self.y1 = BitVector(1)           │
           │                                      │
           │   def next(self):                    │
           │     self.y0_next = self.y0           │
           │     self.y1_next = self.y1           │
           │     if (self.y0_next == self.y1):    │
           │       self.y0_next = 1 - self.y0     │
           │       self.s_next = 1 - self.s       │
           │     else:                            │
           │       if (self.s == self.y1_next):   │
           │         self.s_next = self.s         │
           │       else:                          │
           │         if (self.y1_next == self.s): │
           │           self.y1_next = 1 - self.y1 │
           │           self.s_next = 1 - self.s   │
           │     self.y0 = self.y0_next           │
           │     self.y1 = self.y1_next           │
           │     self.s = self.s_next             │
           ╰──────────────────────────────────────╯
[20:55:09] ╭───────────────────── 🤖 Repaired: ──────────────────────╮                                                                                                                                            utils.py:24
           │ class MutualExclusion(Module):                          │
           │   def locals(self):                                     │
           │     self.s = BitVector(1)                               │
           │     self.s_next = BitVector(1)                          │
           │     self.y0_next = BitVector(1)                         │
           │     self.y1_next = BitVector(1)                         │
           │     self.y0 = BitVector(1)                              │
           │     self.y1 = BitVector(1)                              │
           │                                                         │
           │   def next(self):                                       │
           │     self.y0_next = self.y0                              │
           │     self.y1_next = self.y1                              │
           │     if (self.y0_next == self.y1):                       │
           │       self.y0_next = (BitVectorVal(1, 1) - self.y0)     │
           │       self.s_next = (BitVectorVal(1, 1) - self.s)       │
           │     else:                                               │
           │       if (self.s == self.y1_next):                      │
           │         self.s_next = self.s                            │
           │       else:                                             │
           │         if (self.y1_next == self.s):                    │
           │           self.y1_next = (BitVectorVal(1, 1) - self.y1) │
           │           self.s_next = (BitVectorVal(1, 1) - self.s)   │
           │     self.y0 = self.y0_next                              │
           │     self.y1 = self.y1_next                              │
           │     self.s = self.s_next                                │
           │                                                         │
           │                                                         │
           ╰─────────────────────────────────────────────────────────╯
           ╭────── 🤖 Stats: ──────╮                                                                                                                                                                              utils.py:24
           │ Original Lines: 31    │
           │ Final Lines:    26    │
           │ LLM Calls:      2     │
           │ LLM Time:       7.12s │
           │ Repair Time:    1.01s │
           ╰───────────────────────╯
