ortools-clone/examples/tests/issue2.py

#!/usr/bin/env python3
from ortools.constraint_solver import pywrapcp

# Control-C test. Hit Control-C during execution of this program.

def main():
  solver = pywrapcp.Solver("time limit test")
  n = 10
  x = [solver.IntVar(1, n, "x[%i]" % i) for i in range(n)]
  solver.Add(solver.AllDifferent(x, True))

  solution = solver.Assignment()
  solution.Add(x)

  db = solver.Phase(x,
                    solver.CHOOSE_FIRST_UNBOUND,
                    solver.ASSIGN_MIN_VALUE)

  time_limit = 2000
  branch_limit = 100000000
  failures_limit = 100000000
  solutions_limit = 10000000
  limits = (
      solver.Limit(
          time_limit, branch_limit, failures_limit, solutions_limit, True))

  search_log = solver.SearchLog(1000)
  assignment = solver.Assignment()
  assignment.Add(x)
  collector = solver.LastSolutionCollector(assignment)
  try:
    solver.Solve(db, [limits, search_log, collector])
  except KeyboardInterrupt:
    print("Control-C caught")

  print("failures:", solver.Failures())
  print("branches:", solver.Branches())
  print("wall_time:", solver.WallTime())


if __name__ == "__main__":
  main()