jkoppel

-------------------------- MODULE multi_user_wire --------------------------

EXTENDS Integers, Sequences
CONSTANTS Users, Servers, Accounts 

MAX_MONEY == 20

AtMostOneAdminPerOrg(users, orgs) == {roles \in [users -> {"user","admin"}]:
                                        \A x,y \in users: (roles[x] = "admin" /\ roles[y] = "admin") => x = y}

jkoppel

// Rounding operations (efficient when n is a power of 2)
// Round down to the nearest multiple of n
#define ROUNDDOWN(a, n)                                         \
({                                                              \
        uint32_t __a = (uint32_t) (a);                          \
        (typeof(a)) (__a - __a % (n));                          \
})
// Round up to the nearest multiple of n
#define ROUNDUP(a, n)                                           \
({                                                              \

jkoppel

private static class Vec {
    int x, y;
    public Vec(int x, int y) { this.x = x; this.y = y; }
    public Vec add(Vec oth) { return new Vec(x+oth.x, y+oth.y); }
    public Vec rot90CW() { return new Vec(y, -x); }
    public int infDist(Vec oth) { return Math.max(x-oth.x, y-oth.y); }
    public boolean equals....
}

// Returns spiral pattern in a (2n+1) * (2n+1) array

jkoppel

/* Functionality:
 * -- Activate pumps on moisture low
 * -- If photoresistor low, and valid hours of day, then turn lights on for 10 minutes
 * -- If water level low, then blink lights
 */

#include <Wire.h>
#include <DS3231.h>

jkoppel

// Before
        xrContext.addToBindings(commonBindings, squeezeAction, "/input/squeeze/value");
        xrContext.addToBindings(commonBindings, triggerAction, "/input/trigger/value");
        xrContext.addToBindings(commonBindings, gripPoseAction, "/input/grip/pose");
        xrContext.addToBindings(commonBindings, aimPoseAction, "/input/aim/pose");
        xrContext.addToBindings(commonBindings, thumbstickAction, "/input/thumbstick");
        xrContext.addToBindings(commonBindings, thumbClickAction, "/input/thumbstick/click");
        xrContext.addToBindings(commonBindings, vibrateAction, "/output/haptic");

jkoppel

generator int exp([int nvars, int nconsts], int bnd, int[nvars] vars, int[nconsts] consts){
    //In this generator, nvars is the number of variables and nconsts is the number of constants.
    //the array vars contains the values of all the variables and the array consts of all the constants.
    //Note that unlike problem 1, where you were generating ASTs, here you are synthesizing the actual function.
    //Also note that you will probably need a separate generator for the boolean expressions.

    if (bnd == 0) {
      return {| vars[??] | consts[??] |};
    }

jkoppel

Inductive val :=
| ValConst (n : nat)
| Closure (e1 : list val) (e2 : exp)

with

exp :=
| Var (v : var)
| Plus (e1 e2 : exp)

jkoppel

This is one of the simpler examples from a series of examples designed to be challenging to analyze by method of combining many featuress. 

The goal of this analyzer is to verify the assertions. This example involves interplay between integer constraints and aliasing, and also requires models for the Urn functions.


------------------------------

void func() {
  Urn u1 = new Urn();
  Urn u2 = new Urn();