ok

tmp/ex3.lua

@@ -0,0 +1,49 @@
+local kiwi = require("kiwi")
+local ffi = require("ffi")
+
+local t
+local e
+local strformat = string.format
+local Strength = kiwi.Strength
+
+--local bad_str = "-1 v8 + -1 v4 + -1 v2 + -4 v9 + -2 v3 + -1 v6 + -1 v5 + -1 v1 + -2 v7 + -5"
+-- local b = ""
+
+function s(self)
+   local ops = {
+      [0] = "<=",
+      ">=",
+      "==",
+   }
+   local strengths = {
+      [Strength.REQUIRED] = "required",
+      [Strength.STRONG] = "strong",
+      [Strength.MEDIUM] = "medium",
+      [Strength.WEAK] = "weak",
+   }
+   local strength = self:strength()
+   --local e = self:expression()
+   local s = strformat("%s %s %s", "aaa", tostring(self:expression()), tonumber(self:op()))
+   return s
+end
+
+for i = 1, 2000 do
+   local v1 = kiwi.Var("v1")
+   local v2 = kiwi.Var("v2")
+   local v3 = kiwi.Var("v3")
+   local v4 = kiwi.Var("v4")
+
+   local v5 = kiwi.Var("v5")
+   local v6 = kiwi.Var("v6")
+   local v7 = kiwi.Var("v7")
+   local v8 = kiwi.Var("v8")
+   local v9 = kiwi.Var("v9")
+   local v10 = kiwi.Var("v9")
+
+   do
+      --
+      local c = ((-(v1 + v2 + 2 * v3 + v4 + 3)):eq(v5 + v6 + 2 * v7 + v8 + 4 * v9 + 3))
+      s(c)
+   end
+end
+print(t)