%%%%% CONFIGURATION %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
:- module(extend, [mem/4,program_order/1,if_pair/1,lock_pair/1,synchro_order/1]).

mem(i1,t1,cr,v(0)).
mem(i2,t1,wr,a).
mem(i3,t1,cr,v(0)).
mem(i4,t1,wr,b).
mem(i5,t1,re,a).
mem(i6,t1,wr,r2).
mem(i7,t1,cr,v(1)).
mem(i8,t1,wr,b).

mem(i9,t2,re,b).
mem(i10,t2,wr,r1).
mem(i11,t2,cr,v(2)).
mem(i12,t2,wr,a).

program_order([i1,i2,i3,i4,i5,i6,i7,i8]).
program_order([i4,i9,i10,i11,i12]).

if_pair([]).

lock_pair([]).

synchro_order([]).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%