Program: 156731
Project: 156731
Buggy source:
private byte[][][] movements(Node from){
  byte[][][] resultMoves=new byte[3][3][3];
  for (int dx=-1; dx <= +1; ++dx) {
    for (int dy=-1; dy <= +1; ++dy) {
      for (int dz=-1; dz <= +1; ++dz) {
        int x=from.index.x + dx;
        int y=from.index.y + dy;
        int z=from.index.z + dz;
        if (endReached(x,y,z)) {
          resultMoves[dx + 1][dy + 1][dz + 1]=2;
        }
 else         if (!BuildCraftAPI.isSoftBlock(world,x,y,z)) {
          resultMoves[dx + 1][dy + 1][dz + 1]=0;
        }
 else {
          resultMoves[dx + 1][dy + 1][dz + 1]=1;
        }
      }
    }
  }
  resultMoves[1][1][1]=0;
  if (resultMoves[0][1][1] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[0][i][j]=0;
      }
    }
  }
  if (resultMoves[2][1][1] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[2][i][j]=0;
      }
    }
  }
  if (resultMoves[1][0][1] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[i][0][j]=0;
      }
    }
  }
  if (resultMoves[1][2][1] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[i][2][j]=0;
      }
    }
  }
  if (resultMoves[1][1][0] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[i][j][0]=0;
      }
    }
  }
  if (resultMoves[1][1][2] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[i][j][2]=0;
      }
    }
  }
  if (resultMoves[0][0][1] == 0) {
    resultMoves[0][0][0]=0;
    resultMoves[0][0][2]=0;
  }
  if (resultMoves[0][2][1] == 0) {
    resultMoves[0][2][0]=0;
    resultMoves[0][2][2]=0;
  }
  if (resultMoves[2][0][1] == 0) {
    resultMoves[2][0][0]=0;
    resultMoves[2][0][2]=0;
  }
  if (resultMoves[2][2][1] == 0) {
    resultMoves[2][2][0]=0;
    resultMoves[2][2][2]=0;
  }
  if (resultMoves[0][1][0] == 0) {
    resultMoves[0][0][0]=0;
    resultMoves[0][2][0]=0;
  }
  if (resultMoves[0][1][2] == 0) {
    resultMoves[0][0][2]=0;
    resultMoves[0][2][2]=0;
  }
  if (resultMoves[2][1][0] == 0) {
    resultMoves[2][0][0]=0;
    resultMoves[2][2][0]=0;
  }
  if (resultMoves[2][1][2] == 0) {
    resultMoves[2][0][2]=0;
    resultMoves[2][2][2]=0;
  }
  if (resultMoves[1][0][0] == 0) {
    resultMoves[0][0][0]=0;
    resultMoves[2][0][0]=0;
  }
  if (resultMoves[1][0][2] == 0) {
    resultMoves[0][0][2]=0;
    resultMoves[2][0][2]=0;
  }
  if (resultMoves[1][2][0] == 0) {
    resultMoves[0][2][0]=0;
    resultMoves[2][2][0]=0;
  }
  if (resultMoves[1][2][2] == 0) {
    resultMoves[0][2][2]=0;
    resultMoves[2][2][2]=0;
  }
  return resultMoves;
}

Fixed version (ground truth):
private byte[][][] movements(Node from){
  byte[][][] resultMoves=new byte[3][3][3];
  for (int dx=-1; dx <= +1; ++dx) {
    for (int dy=-1; dy <= +1; ++dy) {
      for (int dz=-1; dz <= +1; ++dz) {
        int x=from.index.x + dx;
        int y=from.index.y + dy;
        int z=from.index.z + dz;
        if (y < 0) {
          resultMoves[dx + 1][dy + 1][dz + 1]=0;
        }
 else         if (endReached(x,y,z)) {
          resultMoves[dx + 1][dy + 1][dz + 1]=2;
        }
 else         if (!BuildCraftAPI.isSoftBlock(world,x,y,z)) {
          resultMoves[dx + 1][dy + 1][dz + 1]=0;
        }
 else {
          resultMoves[dx + 1][dy + 1][dz + 1]=1;
        }
      }
    }
  }
  resultMoves[1][1][1]=0;
  if (resultMoves[0][1][1] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[0][i][j]=0;
      }
    }
  }
  if (resultMoves[2][1][1] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[2][i][j]=0;
      }
    }
  }
  if (resultMoves[1][0][1] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[i][0][j]=0;
      }
    }
  }
  if (resultMoves[1][2][1] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[i][2][j]=0;
      }
    }
  }
  if (resultMoves[1][1][0] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[i][j][0]=0;
      }
    }
  }
  if (resultMoves[1][1][2] == 0) {
    for (int i=0; i <= 2; ++i) {
      for (int j=0; j <= 2; ++j) {
        resultMoves[i][j][2]=0;
      }
    }
  }
  if (resultMoves[0][0][1] == 0) {
    resultMoves[0][0][0]=0;
    resultMoves[0][0][2]=0;
  }
  if (resultMoves[0][2][1] == 0) {
    resultMoves[0][2][0]=0;
    resultMoves[0][2][2]=0;
  }
  if (resultMoves[2][0][1] == 0) {
    resultMoves[2][0][0]=0;
    resultMoves[2][0][2]=0;
  }
  if (resultMoves[2][2][1] == 0) {
    resultMoves[2][2][0]=0;
    resultMoves[2][2][2]=0;
  }
  if (resultMoves[0][1][0] == 0) {
    resultMoves[0][0][0]=0;
    resultMoves[0][2][0]=0;
  }
  if (resultMoves[0][1][2] == 0) {
    resultMoves[0][0][2]=0;
    resultMoves[0][2][2]=0;
  }
  if (resultMoves[2][1][0] == 0) {
    resultMoves[2][0][0]=0;
    resultMoves[2][2][0]=0;
  }
  if (resultMoves[2][1][2] == 0) {
    resultMoves[2][0][2]=0;
    resultMoves[2][2][2]=0;
  }
  if (resultMoves[1][0][0] == 0) {
    resultMoves[0][0][0]=0;
    resultMoves[2][0][0]=0;
  }
  if (resultMoves[1][0][2] == 0) {
    resultMoves[0][0][2]=0;
    resultMoves[2][0][2]=0;
  }
  if (resultMoves[1][2][0] == 0) {
    resultMoves[0][2][0]=0;
    resultMoves[2][2][0]=0;
  }
  if (resultMoves[1][2][2] == 0) {
    resultMoves[0][2][2]=0;
    resultMoves[2][2][2]=0;
  }
  return resultMoves;
}