GAL peterson_4_dve
{
  //arrays
  array[4] pos= (0, 0, 0, 0) ;
  array[4] step= (0, 0, 0, 0) ;
  //variables
  int P_0.state=0;
  int P_0.j=0;
  int P_0.k=0;
  int P_1.state=0;
  int P_1.j=0;
  int P_1.k=0;
  int P_2.state=0;
  int P_2.j=0;
  int P_2.k=0;
  int P_3.state=0;
  int P_3.j=0;
  int P_3.k=0;
  //transitions 
  transition t0  [ ( P_0.state == 0 ) ] 
     { P_0.state = 2;
       P_0.j = 1;    }

  transition t1  [ ( P_0.state == 1 ) ] 
     { P_0.state = 0;
       pos[0] = 0;    }

  transition t2  [ ( ( P_0.j < 4 ) && ( P_0.state == 2 ) ) ] 
     { P_0.state = 3;
       pos[0] = P_0.j;    }

  transition t3  [ ( ( P_0.j == 4 ) && ( P_0.state == 2 ) ) ] 
     { P_0.state = 1;    }

  transition t4  [ ( P_0.state == 3 ) ] 
     { P_0.state = 4;
       step[( P_0.j - 1 )] = 0;
       P_0.k = 0;    }

  transition t5  [ ( ( P_0.state == 4 ) && ( P_0.k < 4 ) && ( ( pos[P_0.k] < P_0.j ) || ( P_0.k == 0 ) ) ) ] 
     { P_0.state = 4;
       P_0.k = ( 1 + P_0.k );    }

  transition t6  [ ( ( P_0.state == 4 ) && ( ( P_0.k == 4 ) || ( step[( P_0.j - 1 )] != 0 ) ) ) ] 
     { P_0.state = 2;
       P_0.j = ( P_0.j + 1 );    }

  transition t7  [ ( P_1.state == 0 ) ] 
     { P_1.state = 2;
       P_1.j = 1;    }

  transition t8  [ ( P_1.state == 1 ) ] 
     { P_1.state = 0;
       pos[1] = 0;    }

  transition t9  [ ( ( P_1.j < 4 ) && ( P_1.state == 2 ) ) ] 
     { P_1.state = 3;
       pos[1] = P_1.j;    }

  transition t10  [ ( ( P_1.j == 4 ) && ( P_1.state == 2 ) ) ] 
     { P_1.state = 1;    }

  transition t11  [ ( P_1.state == 3 ) ] 
     { P_1.state = 4;
       step[( P_1.j - 1 )] = 1;
       P_1.k = 0;    }

  transition t12  [ ( ( P_1.state == 4 ) && ( ( pos[P_1.k] < P_1.j ) || ( P_1.k == 1 ) ) && ( P_1.k < 4 ) ) ] 
     { P_1.state = 4;
       P_1.k = ( 1 + P_1.k );    }

  transition t13  [ ( ( P_1.state == 4 ) && ( ( step[( P_1.j - 1 )] != 1 ) || ( P_1.k == 4 ) ) ) ] 
     { P_1.state = 2;
       P_1.j = ( 1 + P_1.j );    }

  transition t14  [ ( P_2.state == 0 ) ] 
     { P_2.state = 2;
       P_2.j = 1;    }

  transition t15  [ ( P_2.state == 1 ) ] 
     { P_2.state = 0;
       pos[2] = 0;    }

  transition t16  [ ( ( P_2.j < 4 ) && ( P_2.state == 2 ) ) ] 
     { P_2.state = 3;
       pos[2] = P_2.j;    }

  transition t17  [ ( ( P_2.j == 4 ) && ( P_2.state == 2 ) ) ] 
     { P_2.state = 1;    }

  transition t18  [ ( P_2.state == 3 ) ] 
     { P_2.state = 4;
       step[( P_2.j - 1 )] = 2;
       P_2.k = 0;    }

  transition t19  [ ( ( P_2.state == 4 ) && ( P_2.k < 4 ) && ( ( pos[P_2.k] < P_2.j ) || ( P_2.k == 2 ) ) ) ] 
     { P_2.state = 4;
       P_2.k = ( 1 + P_2.k );    }

  transition t20  [ ( ( P_2.state == 4 ) && ( ( step[( P_2.j - 1 )] != 2 ) || ( P_2.k == 4 ) ) ) ] 
     { P_2.state = 2;
       P_2.j = ( 1 + P_2.j );    }

  transition t21  [ ( P_3.state == 0 ) ] 
     { P_3.state = 2;
       P_3.j = 1;    }

  transition t22  [ ( P_3.state == 1 ) ] 
     { P_3.state = 0;
       pos[3] = 0;    }

  transition t23  [ ( ( P_3.state == 2 ) && ( P_3.j < 4 ) ) ] 
     { P_3.state = 3;
       pos[3] = P_3.j;    }

  transition t24  [ ( ( P_3.state == 2 ) && ( P_3.j == 4 ) ) ] 
     { P_3.state = 1;    }

  transition t25  [ ( P_3.state == 3 ) ] 
     { P_3.state = 4;
       step[( P_3.j - 1 )] = 3;
       P_3.k = 0;    }

  transition t26  [ ( ( P_3.state == 4 ) && ( P_3.k < 4 ) && ( ( P_3.k == 3 ) || ( pos[P_3.k] < P_3.j ) ) ) ] 
     { P_3.state = 4;
       P_3.k = ( 1 + P_3.k );    }

  transition t27  [ ( ( P_3.state == 4 ) && ( ( step[( P_3.j - 1 )] != 3 ) || ( P_3.k == 4 ) ) ) ] 
     { P_3.state = 2;
       P_3.j = ( 1 + P_3.j );    }

  // transient predicate 
TRANSIENT = false;

}