FAQ Database Discussion Community


Better way to express exactly once in CBMC

c,sat
Trying really hard to come-up with a better solution to state exactly once property in CBMC (C bounded model checkers). Means exactly one element position in a row should have 1(or any positive no tht can be checked as boolean true) rest all zeros. For M = 4 for(i=0;i<M;i++){ __CPROVER_assume(...

CBMC Model Checking

c,sat
I'm trying to constraint the table b[4][4] such that only those places which have i>=j and satisfying condition that stored[i] & stored[j] i.e bitwise and is equals to stored[i] be 1 else rest be 0. Why this is not working :: void main(){ unsigned int i = 0 , j...

Class Scheduling to Boolean satisfiability [Polynomial-time reduction]

c,algorithm,scheduling,reduction,sat
I have some theorical/practical problem and I don't have clue for now on how to manage, Here it is: I create a SAT solver able to find a model when one is existing and to prove the contradiction when it's not the case on CNF problems in C using genetics...

SAT-Solving: DPLL vs.?

random,brute-force,stochastic,sat-solvers,sat
right now I am writing about SAT-solving and I am stuck at a point. I am hoping that you can help me. I want to describe some methods to solve SAT-Problems. Right now I have three different ways: Bruteforce Random (naive) DPLL (with different heuristics) ? missing ? ... My...