FILED BY AVANT! CORPORATION PURSUANT TO RULE 425 UNDER THE SECURITIES ACT OF
1933. IN ADDITION, AVANT! CORPORATION DEEMS THIS COMMUNICATION TO BE FILED UNDER
RULE 14a-12 OF THE SECURITIES EXCHANGE ACT OF 1934. SUBJECT CORPORATION: AVANT!
CORPORATION, COMMISSION FILE NO. 0-25864.


FORWARD LOOKING STATEMENTS

           The transcript below contains forward-looking statements within the
meaning of the safe harbor provisions of Section 21E of the Securities Exchange
Act of 1934, including statements regarding the expected date of closing the
acquisition; future financial and operating results; and timing and benefits of
the acquisition. These statements are based on Synopsys' and Avant!'s current
expectations and beliefs. Actual results could differ materially from the
results implied by these statements. Factors that may cause or contribute to
such differences include the successful closing of the acquisition; changes in
both companies' businesses during the period between now and the closing date;
litigation relating to the transaction or the businesses, including the outcome
of litigation between Avant! and Cadence Design Systems, Inc.; the successful
integration of Avant! into Synopsys' business subsequent to the closing of the
acquisition; timely development, production and acceptance of products and
services contemplated by the merged company after completion of the proposed
acquisition; increasing competition in the market for design implementation or
design verification software; the ability to retain key management and technical
personnel; adverse reactions to the proposed transaction by customers, suppliers
and strategic partners and other risks described in Synopsys' report on Form
10-Q filed with the Securities and Exchange Commission (SEC) on September 18,
2001 (pp. 21-23), and on Avant!'s report on Form 10-Q filed with the Securities
and Exchange Commission (SEC) on November 14, 2001 (pp. 21-27). Synopsys and
Avant! are under no obligation to (and expressly disclaim any such obligation
to) update or alter their forward-looking statements whether as a result of new
information, future events or otherwise.

ADDITIONAL INFORMATION

           In connection with the proposed merger, Synopsys and Avant! will file
a joint proxy statement/prospectus with the SEC. INVESTORS AND SECURITY HOLDERS
ARE URGED TO READ THE JOINT PROXY STATEMENT / PROSPECTUS REGARDING THE PROPOSED
MERGER WHEN IT BECOMES AVAILABLE, BECAUSE IT WILL CONTAIN IMPORTANT INFORMATION.
Investors and security holders may obtain a free copy of the joint proxy
statement / prospectus (when available) and other related documents filed by
Synopsys and Avant! with the SEC at the SEC's website at www.sec.gov. The joint
proxy statement / prospectus (when it is available) and the other documents may
also be obtained for free by accessing Synopsys' website at www.synopsys.com or
by directing a request by mail or telephone to 700 E. Middlefield Road, Mountain
View, CA 94043, Attention: Company Secretary, (650) 584-5000, or by accessing
Avant!'s website at www.avanticorp.com or by directing a request by mail or
telephone to 4671 Bayside Parkway, Fremont, CA 94538, Attention: Company
Secretary, (510) 413-8000.

           Synopsys, Avant!, and their respective directors, executive officers
and certain other members of management and employees may be soliciting proxies
from their respective stockholders in favor of the merger. Information regarding
the persons who may, under the rules of the SEC, be considered participants in
the solicitation of the Synopsys stockholders, or the Avant! stockholders, as
the case may be, in connection with the proposed merger, will be set forth in
the joint proxy statement / prospectus when it is filed with the SEC.



---------------------
                  The following is the question and answer period of the
                  conference call hosted jointly by Avant! and Sysopsys on
                  December 3, 2001. The first half of this transcript has been
                  previously filed.








                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 1


                  Thank you for your attention. Let's now open up for Q&A.
                  Operator, please poll for questions.

Moderator         Thank you.  Our first question comes from the line of Rajid
                  Seth from SG Cowen.  Please go ahead.

R. Seth           Hi. It's Raj Seth from Cowen.  Aart, I wonder if you can talk
                  about what it was that compelled you to go after Avant! Now.
                  Obviously, a lot of the strategic rationale has existed for
                  some time. What is it that got you to make this transaction
                  happen right now?

A. de Geus        Raj, as you said, it has made sense for a long time.  It has
                  also always been clear to us that we would not do anything
                  while there was a criminal lawsuit pending, and as this came
                  to a somewhat rapid end another thing happened, which is quite
                  a number of customers approached me directly with a strong
                  suggestion that this would be a good move, that they liked the
                  technology, and that they would like to see a flow made up of
                  the two


                                       1

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                          PAGE 2


                  companies. And so we looked at the situation and concluded
                  that this was a good time.

                  Secondly, I've learned over the years that when you have
                  strong technology yourself it is actually very good to be able
                  to connect this to an install base, because it reduces the
                  risk to the customer. And so you put all of these factors
                  together and that brings us to today.

R. Seth           And with regard to your integration plans, how long do you
                  think it takes you post close to actually get real technology
                  integration beyond the integration that already exists, that's
                  been in place for your common customers, and how do you handle
                  the R&D portion of Avant! that, at least Avant! has described,
                  as portions of that have moved overseas?  How do you handle
                  the integration here?

A. de Geus        Sure, first, I think the integration post closure will be
                  extremely rapid. The reason is that fundamentally our
                  customers have done already much of the initial work, and
                  secondly, Avant! has a database infrastructure that I think is
                  well suited to add many of the capabilities that we have.


                                       2

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                          PAGE 3


                  Regarding the R&D force that is overseas, primarily in the Far
                  East, we have for a number of years looked ourselves at
                  expanding in the Far East. We've always felt that was a part
                  of the world that would see great growth and great
                  opportunity, and this is both a forcing function and an
                  opportunity for us to very proactively look at how we build
                  that as a differentiating asset for the company.

R. Seth           With regard to your channel, what's the strategy there?  I
                  thought it said in the release that you're operating this as a
                  subsidiary. Do you combine the two channels? What do you do on
                  the channel side?

A. de Geus        Let me clarify.  The subsidiary is a construct that has to do
                  with the financial part of the acquisition. Our intent is to,
                  upon closure, integrate the company immediately. The
                  perspective from the field is very simple, they love this,
                  because they have for a long time observed at the customer
                  side that the preferred solution for all the high performance
                  designers is the combination of Synopsys and Avant!. They know
                  the tools well, and once they will have access to these
                  opportunities they will run with it.


                                       3

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                          PAGE 4


R. Seth           Okay, last question.  Physical compiler is synthesis plus
                  placement. Avant! obviously strong in place and route as
                  placement and routing. Does this transaction necessarily mean
                  that you get rid of the placement piece of the Avant! flow in
                  that domain?

A. de Geus        One of the things that has always baffled me is that
                  transition of technology on the one hand is blindingly fast
                  and on the other hand takes a long, long time. So I think what
                  this does for us is that we instantaneously have a flow that,
                  with physical compiler and the existing place and route
                  capability of Avant!, yields very, very good results.

                  It is clear that from a technology point of view we have first
                  and foremost a stellar set of technologists on both sides. The
                  experience that we made with the integration of View Logic has
                  shown us that, if we take quickly a joint longer-term
                  perspective, it actually accelerates the developments of newer
                  software.

R. Seth           What is your experience with, View was obviously very
                  successful, Epic perhaps less successful. What did you learn
                  from Epic that you can apply here?


                                       4

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                          PAGE 5


A. de Geus        Your keyed up server of the reality. I think one of the
                  reasons View went well was because we had learned a number of
                  lessons with Epic. One of the lessons we have learned is that
                  you integrate as fast as you possibly can, and you make sure
                  that not only the technical people work well together, you
                  also integrate the fields rapidly. And I think in this case
                  that is going to be very straightforward.

R. Seth           Thank you.

A. de Geus        You're welcome.

Moderator         Our next question comes from the line of Jay Bleishaur with
                  Merrill Lynch. Please go ahead.

J. Bleishaur      Thanks.  Good afternoon.  First question about the core
                  business, and then I'd like to ask about the transaction as
                  well. First, Aart or Brad, outside of the large contract
                  renewal you referred to in the quarter, and feel free to put a
                  name and number on that, can you talk about any trends in the
                  other portion of the business sequentially or year over year?
                  Was there anything


                                       5

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                          PAGE 6


                  in the fourth quarter to suggest a broader base of momentum,
                  at least through the end of fourth quarter outside of the
                  renewal?

                  On the transaction, you refer to the strategic sense that has
                  been around for a while, yet on the other hand, you've at
                  times expressed reservations about this combination
                  technically, competitively, even culturally, and that there
                  really wouldn't be a need to make a formal combination, but
                  that you could continue to partner in sort of a de facto way.
                  So again, following up on Raj's question, why not just pursue
                  the relationship as you had it before, informal though it was,
                  instead of this?

B. Henske         Let me take your first one.  Firstly, unfortunately the
                  realities of many of our relationships with our customers
                  include confidentiality, so we cannot put either a name or a
                  number on the deal we did in the quarter.

                  As we look at the rest of the business, I think the thing that
                  was most striking was not so much the composition of it,
                  because it was a broad mix of our tools. It was a broad mix of
                  renewals, new contracts, add-on purchases. But the thing that
                  struck us the most was the volatility and visibility of how it
                  came in.


                                       6

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                          PAGE 7


                  We keep track throughout a quarter in some considerable detail
                  all of the opportunities that we're chasing, and as a general
                  matter, the visibility that is usually pretty good throughout
                  the quarter, because in many cases these are opportunities
                  that the particular sales staff have been working on for
                  months. That sort of thing generally gets closed as expected.

                  The thing we saw new this quarter was an enormous amount of
                  volatility. Things that we would have in the ordinary course
                  been highly confident would get done, actually didn't.
                  Actually surprisingly enough, things that we didn't think were
                  going to get done all of the sudden show up and are quite
                  urgent from a customer's perspective. It's that change in
                  visibility and predictability, which was the largest driver of
                  the change we made in our view going forward.

A. de Geus        Jay, following up on the second part, which is so why now and
                  is this a change of strategy for the company? First, what was
                  our strategy? Our strategy has been clearly that starting from
                  a front-end position we were going to gradually move into the
                  physical domain, and actually we are both very happy and
                  satisfied with how well the whole physical effort has


                                       7

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                          PAGE 8


                  moved forward. It's become one of our star products, and as
                  I've said before, I think it's going to be the fastest growing
                  product in the history of EDA.

                  At the same time, instead of thinking about it in terms of
                  does this change our strategy, we asked ourselves the
                  question, can this accelerate our strategy? The single thing
                  that has always been a big hurdle is the criminal lawsuit.
                  This came to a somewhat unexpected end for most of us more
                  rapidly at the end of the spring than most had thought. At
                  that point in time we re-examined the question of changing
                  strategy versus accelerating the strategy, and it became very
                  clear that, if we could connect well our new physical
                  synthesis efforts, and I am including not just physical
                  compiler in that, but many of the other things we are doing
                  there as well, with what Avant! has, that this would be a very
                  strong solution and thus an acceleration of our strategy.

                  The input from the customers, which was very uninvited, sort
                  of confirmed that in a very strong fashion. The people that
                  I've spoken to since the announcement absolutely ascertained
                  that this will be good for them, and will help them move
                  forward in their technologies as well.


                                       8

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                          PAGE 9


J. Bleishaur      Was the customer insistence, Aart, a more recent phenomenon?
                  Do you think it might in part be attributable to their
                  concerns about the viability of Avant! without your taking it
                  over? Secondly, Brad again with your 10% forecast for bookings
                  for next year, could you talk about the mix of the renewals
                  expectations in that bookings outlook versus your unscheduled
                  or pipeline business?

A. de Geus        The customers, they have formulated this over many years, but
                  you're correct that during the summer the level of concern
                  went up as the level of uncertainty around Avant! went up. But
                  the concern was very much one of there is a need for a next
                  generation design flow, and this would be a combination that
                  would really allow the joint company to build this.

B. Henske         With respect to next year, it's always hard to peg exactly
                  what are renewals, given the relationships we have with our
                  customers. As I think you know, virtually everyone who designs
                  integrated circuits today is a customer for one or another of
                  our products and has been on an ongoing basis. So we tend to
                  see contracts that get redone in the middle, they get added on
                  to, they get amended. The bulk of our business next year


                                       9

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 10


                  obviously will be from customers that we've done business with
                  before and will continue to do business with again. It's hard
                  for us to pick anything in particular as a renewal.

J. Bleishaur      Okay.  Aart, one last one.  You've argued that over the course
                  of this technology upgrade cycle or retooling cycle that
                  pricing ought to be better or you ought to be better able to
                  capture the value of the new technology. Do you think that
                  this combination might generate a new wave of price
                  competitiveness, however, within the industry, and you don't
                  quite capture as much value as you would otherwise hope from a
                  new technology?

A. de Geus        You know, I think it's always difficult to predict exactly
                  what happens, but in general new technology is driven by the
                  desire of the technologists to do much more demanding tasks,
                  and their pricing is not the main issue. I think, especially
                  in the present market, what is a much bigger issue is a risk
                  of being able to complete your chip. A lot of people are
                  looking very carefully at the projects that they're engaged
                  in, and are continually coming back with the question of how
                  can they reduce the technical risk as they embark on projects
                  that are very pricey.


                                       10

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 11


J. Bleishaur      Thank you.

Moderator         Thank you.  Our next question comes from the line of Jennifer
                  Jordan with Wells Fargo.  Please go ahead.

J. Jordan         Good afternoon.  Congratulations on what I think is a really
                  interesting deal. I was wondering if you might comment a
                  little bit on how you go about integrating these sales forces,
                  and also addressing what's been a really different culture at
                  Avant! in terms of the way the business had been led in the
                  past versus the way things have been done at Synopsys. And
                  then if you could emphasize again the other areas where you
                  see this combination really having strength? It seems to me
                  that extraction becomes a big role, and that helps really fill
                  out your offerings in verification and synthesis.

A. de Geus        I think in many ways all three questions boil down to what is
                  the impact of the customer, because if you start there that
                  sort of tells you how to engage with the field force. The
                  opportunity I see here for us as a joint company is that we
                  will simultaneously start focusing on a broader sales
                  initiative where our role with the customer becomes more than
                  just tool supplier.


                                       11

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 12


                  We're now very much sort of a vital ingredient that they rely
                  on for their business success. And so as we merge the sales
                  forces we will look at how to structure that most effectively.

                  The culture has essentially the same answer, which is as long
                  as you drive your cultural outlook backwards from what is good
                  for the customers, you quickly find common points. And if
                  there's one thing that we do have strongly in common with the
                  folks at Avant!, it is a strong belief that technology
                  leadership is an absolute essential ingredient to not only
                  stay alive, but to thrive in the high tech field. And I think
                  that will be the nucleus around which we will assemble the
                  management strategy.

                  And third, again looking from the customer, if you look at the
                  areas that are around the traditional place and route, you are
                  correct to observe that the extraction, the various tools that
                  essentially translate the data from the layout back into
                  analysis information is extremely valuable, and it's
                  especially valuable at a time where signal integrity is
                  becoming a major challenge as you go to smaller geometries. So
                  in that sense, again the combination of what we have, I think
                  will provide for a very strong solution.


                                       12

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 13


                  So I hesitate to be too repetitive, but as long as we stay
                  customer driven I think we'll be alright.

J. Jordan         Okay.  Aart, if you don't mind I just have a couple other
                  questions. The next one is just about consolidating resources.
                  Avant! has a very large campus down there in the Valley area.
                  I'm wondering if you're looking at consolidating more people
                  to the Synopsys campus and what impact that might have? And
                  then, if you can cover that, then I'll come up with the next
                  question.

B. Henske         As we look to put the companies together, we'll clearly try
                  and sort out how to rationalize our real estate footprint in
                  this area. There are, and I suspect what will happen is we go
                  through and think about what teams need to be integrated. Some
                  of the Avant! people it will make sense to move here. It may
                  very well make sense to move some of the Synopsys people
                  there, but as we go through group by group, and figure out,
                  and we've done some of this work already, and figure out which
                  of the various organizations should be put together, we'll
                  figure it out that way. But it's clear that between us we have
                  surplus real estate.


                                       13

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 14


J. Jordan         Okay.  The last two questions are a number of the most key
                  R&D professionals at Avant! had been given compensation
                  bonuses that were cash bonuses rather than being tied to the
                  stock price. How do you address any concerns of those
                  customers or those engineers who are used to getting cash?
                  Secondly, have you heard anything about the progress of the
                  Astro product, and any tape outs for that new product that
                  really addresses signal integrity issues?

A. de Geus        Whenever you merge two companies there's a whole set of
                  infrastructure questions and behaviors that have to be
                  aligned. In our experience, there are some things that you
                  align very quickly, others that you do over some period of
                  time. But fundamentally one should never violate the belief
                  that the people that provide most of the value to a company
                  should be rewarded most, and that can take many different
                  forms. So, I think we both follow that belief, and it will
                  probably take a little bit of time to align exactly how we do
                  it, but if you have strong people the business will be good.

P. Lo             Jennifer, this is Paul. Let me comment on the momentum of
                  Astro. Last time we talked, we said there are about three
                  customers in production, and


                                       14

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 15


                  recently we checked. There are six customers in production now
                  and we expect a tape out very soon, many in the next month.
                  Overall, I think the engagement has gone along very well and
                  we expect good booking from Astro in this quarter.

J. Jordan         Great.  Thank you, Paul.

P. Lo             Thank you

Moderator         Our next question comes from the line of Greg Wagenhauffer
                  with Credit Suisse First Boston. Please go ahead.

G. Wagenhauffer   How does the acquisition of Avant! affect the timing of your
                  ability to offer that fully integrated flow, and within that
                  how does that change the roadmap, if at all, for route
                  compiler? Then if you could also take us through the stages of
                  integration. When do you get physical compiler integrated into
                  MilkyWay, and then eventually how does Astro or Apollo get
                  integrated into physical compiler flow?


                                       15

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 16


A. de Geus        Greg, we actually would rather not give that out right now,
                  because one of the key things in doing a good integration is
                  to make sure that you involve the key people on both sides.
                  And as you can imagine, as much as many people in both
                  companies now know about this, we have not involved most of
                  our R&D folks in this. The great opportunity I think we have
                  here is on one hand to stay on track with what we're doing,
                  because both companies are making good strides in their
                  respective strategies, and at the same time take the time with
                  some of the leaders to plot a strategy that would be more
                  aggressive in technology.

                  It is already clear, though, that the MilkyWay database has
                  many very positive strong attributes that would allow us to
                  make very quick headway, and I would imagine that within three
                  to six months after closure already very practical and
                  tangible results will be visible.

G. Wagenhauffer   With Synopsys really owning pretty much the front-end design
                  with 80% and 90% market share, Avant! in the back end probably
                  with the leading technology, but more like 35% to 40% market
                  share, how do you leverage the front-end dominance to bring up
                  the share in the back end but not look too dominating to your
                  customers?


                                       16

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 17


A. de Geus        At the end of the day every point tool in the collection, I
                  believe, has to compete on its own merit. And so we should
                  never think that by having a complete solution that that is
                  good enough. This is a mantra that we'll keep repeating to
                  ourselves for every product.

                  Simultaneously, it is clear that customers would like to
                  remove risk, and the risks very often are not, well are the
                  tools just connected well to each other. The big risks are
                  when you do a design at the front end, and you make
                  assumptions on what will happen in the physical domain that
                  are erroneous. So those feedback moves are extremely high
                  value to customers, and so we will focus on providing the
                  technology that makes that possible.

G. Wagenhauffer   Brad, you talked about the level of accretion we can expect or
                  dilution next year. As you shift Avant! to your business model
                  and more of the 75% - 85% ratable subscriptions; first of all
                  how long does that take? Then second, where do you think
                  operating margins can go?


                                       17

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 18


B. Henske         Firstly, I think that's the thing that will happen quite
                  rapidly. All of that mixes on, if you will, the incremental
                  business that's done, and even in the first quarter of
                  integration the customers that post the closing we're dealing
                  with on a joint basis. My guess is on average we'll look
                  pretty close to our mix.

                  Secondly, as I've said before and I continue to believe, this
                  is a business that should generate low 30s operating margins.
                  Synopsys on a standalone basis had been planning on being at
                  that point as we exited 2002. I expect that some of the
                  transition expenses will probably push that out a little
                  farther. But remember, fundamentally with the ratable license
                  model, the underlying economics of the business, which is the
                  orders you're taking in less the money you're spending on
                  expenses, on that basis both we and Avant! today are in excess
                  of 30% and we'll continue to be so on an ongoing basis.

G. Wagenhauffer   Okay.  Lastly, one clarification on Avant!'s relationship with
                  some of their distributors. Was there, I think you said the
                  MainGate would become part of Avant!. Was there any cash
                  payment? I think you said net that cancelled out to a neutral
                  acquisition. Is that meaning the purchase price


                                       18

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 19


                  was the same as the severance payment or could you just
                  explain that again?

B. Henske         The basic arrangement, without getting down into all the nits,
                  is that the purchase price, and Avant!'s going to execute this
                  in the next month, the purchase price for the remaining
                  outstanding shares will be a number less than the cash in
                  MainGate that they will get at the closing of that
                  transaction.

G. Wagenhauffer   Okay.  Thanks, Brad.

Moderator         Our next question comes from the line of Jessica Curacas with
                  Goldman Sachs. Please go ahead.

J. Curacas        Good afternoon, everybody.  Congratulations on the
                  acquisition. Can you talk a little bit, two things: one I want
                  to just go through again the logistics of the insurance policy
                  and understand the collar around that. And then if you can
                  talk specifically about, you know, to what level of due
                  diligence do you do? You mentioned I think you had two lawyers
                  that you guys used for doing the due diligence on the deal.
                  Can you tell us who those


                                       19

                                                           SYNOPSYS INCORPORATED
                                                             HOST:  AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 20


                  were, and I guess what reasonable assurance you have in terms
                  that the code is essentially completed scrubbed of Cadence
                  code? Then lastly, you mentioned that I think you had longer
                  terms on your subscriptions this quarter. How much of those
                  longer terms were skewed this quarter by one or two very large
                  deals, multi-year deals? What terms are you anticipating when
                  you're giving out some of the forecasts that you've been
                  giving out for next quarter and just going forward?

B. Henske         Okay.  Let me see if I can work through all of this. Firstly,
                  the basics of the insurance policy: it is essentially $500
                  million in insurance for a premium of $335. It's worth
                  thinking about in a couple of parts.

                  The first $250 million Synopsis will accrue interest on, paid
                  by the insurer. It will remain as an asset on our balance
                  sheet. It will be used to pay expenses, liabilities and
                  judgments, and the like. To the extent that the aggregate of
                  all costs are less than $250 million, we'll get the remainder
                  back.


                                       20

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 21




                           The remaining premium of $85 is for an incremental
                           $250 million of insurance, for a total of $500.
                           Because the first $250 accretes by interest, actually
                           the policy limit will accrete at a small rate over
                           the period.

                           In the diligence, as I'm sure the Avant! people would
                           tell you, we did quite extensive due diligence. We
                           had two law firms, but many more than two lawyers
                           involved, and we had actually Cleary and Morrison
                           Forrester with us. We went through all of what's
                           available on the case and on the issues, and I think
                           again, as we said, while there's no guarantees as to
                           how litigation comes out, we're comfortable that we
                           have adequately provided for the liability.

                           With regards to orders in the quarter, the duration
                           was generally not one or two large deals, it was
                           relatively broad based. The guidance we've given out
                           going forward is based on an expectation of an
                           average duration of three years.

J. Curacas                 Three years?

B. Henske                  Yes.


                                       21

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 22




J. Curacas                 Ok.  All right.  Thank you.

Moderator                  Our next question comes from the line of John Barr
                           with Robertson Stephens. Please go ahead.

J. Barr                    I wondered, Brad, if you could detail the $55 million
                           in fees, and does that cover the $34 million to Jerry
                           Sue and John Sue and other management for their
                           severance packages?

B. Henske                  Yes. The $55 million are in employment agreements, it
                           covers all of that. The incremental fees, hang on,
                           I'll detail it for you, it's mostly investment
                           banking and brokerage fees.

J. Barr                    Beyond the $34 million that's disclosed in the Avant!
                           Q, what gets you up to $55?

B. Henske                  So there are more individuals involved, and the cost
                           of Jerry's arrangement is inclusive of the value of
                           his options.

J. Barr                    What is the total cost of Jerry's package there?


                                       22

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 23




B. Henske                  It depends on exactly where our stock is at closing,
                           but it's on the order of $40 million.

J. Barr                    Okay. Then just to be clear, on the MainGate and the
                           other Asian distributors you're not paying any of the
                           terms that were described in the Q for the severance
                           of those agreements?

B. Henske                  Correct. Leaving aside MainGate, those agreements
                           have generally been amended to take those terms out.
                           As I said, Avant! will actually repurchase MainGate
                           for a net cost, essentially of zero, sometime before
                           the end of the calendar year.

J. Barr                    Okay. Then you own it, so you will fold it in to your
                           Japanese sub or do whatever you wish with it?

B. Henske                  Yes. So Avant! will own it and, therefore, we will
                           own it. In some fashion that makes sense, will get
                           integrated with the operation that we have in Japan.


                                       23

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 24




J. Barr                    Will any of the employees or assets stay behind with
                           Jerry?

B. Henske                  No.

J. Barr                    Okay. Then finally on route compiler; does this mean
                           that you stopped development on route compiler or
                           does that continue to move forward?

A. de Geus                 It continues to move forward. This is a great
                           technology with a strong team and a strong emphasis
                           on single integrity. So some good capabilities will
                           come out of this.

J. Barr                    One last question. Avant!'s business of late was
                           their book to bill last quarter was significantly
                           below one, we believe. How do you see that going
                           forward during this interim period and then once
                           you've got control?

A. de Geus                 During the interim periods, Avant! will manage its
                           own business, and based on what we hear from
                           customers they will do fine. Once we take over, of
                           course, we will integrate all of the efforts within
                           the company, and

                                       24

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 25




                           at that point in time I think we will be able to give
                           you a better forecast on where the business is at.

J. Barr                    Okay, great.  Thank you.

Moderator                  Our next question comes from Garo Tumisanian from RBC
                           Capital Markets. Please go ahead.

G. Tumisanian              Thanks. Just a couple of questions. First on guidance
                           going forward, I'm curious if there are any
                           particular product areas that you've started to see a
                           slowdown in or are there any particular product areas
                           that might be producing the reduction in visibility,
                           or is it more of an across the board thing? I think
                           in general the expectation is that there is still
                           some technology that customers have to have, and I'm
                           curious what is it that they're choosing to forego?

B. Henske                  So, first and foremost, the thing they're choosing to
                           forego is consulting services. After that it's pretty
                           broadly based. I think that those products that at
                           the margin were highly focused on time to market
                           stuff, like for

                                       25

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 26




                           example very large quantities of simulators, I think
                           probably see a little more effect. But other than
                           that it's pretty broadly based.

G. Tumisanian              Okay. One of the things I'm curious about is whether
                           you anticipate, I trust you don't anticipate, but
                           regarding anti-trust issues. May be if you could walk
                           us through what the next steps would be in the
                           acquisition that might be helpful?

B. Henske                  The next steps, obviously, are to file with the
                           anti-trust authorities. You never can know for sure,
                           but as we look at the fact that the product set at
                           Synopsys and the product set at Avant! are generally
                           almost completely complementary as opposed to
                           overlapping, we believe that we will get through the
                           anti-trust issues without significant problem.

                           The second thing, obviously, is we will file with the
                           SEC on the deal, and when that gets cleared we will
                           hold the two shareholder votes.

G. Tumisanian              Okay. Other than that are there any other risks that
                           you can identify that might prevent or delay the
                           closing of the deal?


                                       26

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 27




B. Henske                  Other than the usual things like somebody passes a
                           law that says you can't or lawsuits that prevent it,
                           no.

G. Tumisanian              Okay, great.  Thanks a lot.

Moderator                  Our next question comes from the line of Benay Shaw
                           with Morgan Stanley. Please go ahead.

B. Shaw                    Just a couple of questions. In terms of the dilution,
                           Brad, can you just talk about whether that's all
                           really just top line assumptions you've made in terms
                           of the transition or if you've also made some expense
                           assumptions, and is that a full year number or are
                           you assuming the deal closes within three months and
                           then it's a $0.30 dilution.

                           Second, on the deferred revenue, which looked like it
                           was pretty strong, can you just help reconcile some
                           of the weakness you're expecting versus the strength
                           in deferred. Then finally, if there are any
                           particular timeline of events on Avant! litigation
                           you guys would highlight in the next three to six
                           months? Thanks.


                                       27

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 28




B. Henske                  First on the dilution. The revenue issues I talked
                           about. We have done so far some work, although much
                           to go yet to sort through what happens on expenses.
                           Our early view is that there are at least $50 million
                           of synergies between the combined companies.

                           I think that the assumption I made on dilution
                           presumed a middle of our Q3 closing, and as you can
                           imagine in this kind of thing, in part depending on
                           when in Avant!'s quarter and when in our quarter it
                           closes, exactly how it comes out is quite time
                           sensitive in this fiscal year.

                           With respect to the deferred, I'm sorry I missed your
                           question on deferred.

B. Shaw                    It looked like it was up over last quarter. I'm just
                           trying to reconcile what you're seeing in deferred
                           revenues versus the outlook and some slowing.

B. Henske                  It's up because this Q4 was our largest orders
                           quarter in history.

                           Then lastly on the litigation, I think at the moment
                           there is a question related to the scope of the
                           release from 1994 between Cadence and Avant! that's
                           been picked up by the California Supreme Court. If
                           you ask three

                                       28

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 29




                           lawyers you get three different answers, but most
                           people expect that very little will happen in the
                           next three to six months.

B. Shaw                    Okay, great.  Thanks.

Moderator                  Our next question comes from the line of Alex Buana
                           with UBS Warburg. Please go ahead.

A. Buana                   Yes. Thank you. I know you've already addressed this
                           to an extent. In terms of renewals and you not giving
                           a percentage for next year; I understand the
                           difficulty in calculating it. But if you were to put
                           aside the industry trends, macro conditions that are
                           weighing on you right now, putting that aside can you
                           look back with say a three-year average renewals rate
                           and give us a sense on how you would expect the year
                           to play out seasonally-wise? Is that possible?

B. Henske                  Well. Yes. Our quarters, if you look back from a
                           seasonal basis, tend to be quite back-end loaded.
                           What we do at the beginning of each year, and
                           actually renew every quarter, is literally for our
                           top hundred customers, and then sort of on average
                           for everybody else, roll up quarter by quarter

                                       29

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 30




                           what we expect. As I said, the quarters tend to be
                           quite seasonally back-end loaded. In this particular
                           year, if all goes to plan Q3 will be better on
                           balance than we've seen in the last couple of years,
                           which is purely an artifact of a couple of large
                           customers that renew in that quarter.

A. Buana                   Are we looking back to the '99 time frame in terms of
                           how they might be expected to come on three years
                           later?

B. Henske                  Absolutely. Part of what we do in forecasting our
                           customers is look to see what agreements are in place
                           and when they roll through.

A. Buana                   I apologize if I missed this, but in terms of
                           renewals, with all the new product cycles that are
                           coming up right now, what sort of average selling
                           price increases might we expect to see this year over
                           say a three-year time frame?

B. Henske                  What you tend to see is that list prices for products
                           grow between 4% and 8% a year. The discount that any
                           individual customer gets is obviously renewed, is
                           renegotiated in each deal; some are up, some are
                           down.


                                       30

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 31




A. Buana                   Okay. Lastly, I did get the out guidance and I was
                           wondering, maybe I missed it, do you have any
                           expectations, with the consulting being under
                           pressure, is that a major part of your concern? Is it
                           possible that software potentially is still going to
                           be up sequentially?

B. Henske                  I think on an orders basis software will absolutely
                           be up sequentially year over year.

A. Buana                   But year over year, what about sequentially this
                           quarter to next?

B. Henske                  In terms of revenue or orders?

A. Buana                   In terms of revenue.

B. Henske                  Yes.  Software will be up Q2 over Q1.

A. Buana                   Okay. Terrific. Thank you very much. Congratulations
                           on the acquisition.

Moderator                  Our next question comes from the line of John Barr
                           with Robertson Stephens. Please go ahead.


                                       31

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 32




J. Barr                    Just a quick one. The ratable revenues this quarter
                           were only up $5 million sequentially. They were up
                           more than that; they were up $11 million in the
                           quarter before that, and $8 million in the quarter
                           before that. This was the big quarter; why wasn't it
                           up more?

B. Henske                  The quarter-to-quarter fluctuations are largely a
                           function of when orders are booked in a quarter, so
                           if you think about revenue in any given quarter from
                           ratable licenses it comes from two things. One is the
                           stuff you booked in prior quarters, which is
                           obviously the largest part of it. The second is the
                           revenue impact of stuff you book in a quarter, which
                           is driven by what month you book it.

                           So that's enough to move the numbers around a few
                           million bucks every quarter, depending on that
                           distribution, and that's the variations you are
                           seeing.

J. Barr                    So does that mean this quarter was more back-end
                           loaded or that the others were more front-end loaded?


                                       32

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 33




B. Henske                  This quarter was modestly more back-end loaded than
                           Q3. Both quarters were significantly more back-end
                           loaded than what we saw in Q1 and Q2. Although again
                           as I said, much better than what we saw prior to the
                           license change.

J. Barr                    Okay. Thanks, Brad.

Moderator                  If there are any additional questions, please press
                           the one on your touch-tone phone. We do have a
                           question from the line of Bill Frerick with DA
                           Davidson & Company. Please go ahead.

B. Frerick                 Brad, I'd like to run through the cross again. You
                           said it was a total of $420 million, of which $335
                           was the insurance premium, $55 was the employment
                           agreements. What were the next two categories?

B. Henske                  Then $30 million for banking brokerage and the other
                           fees and expenses, which is the bankers, the lawyers;
                           all of that drag on the deal.

B. Frerick                 There was some more for future severance or is that
                           the whole amount?


                                       33

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 34




B. Henske                  No, there will be, I expect, as we think through
                           integration, both severance cost and things like
                           facilities cost and the like, which we'll have a view
                           of when we closer to the closing.

B. Frerick                 Okay. Now on the employment agreements, they were
                           contractually written to be triggered by a change
                           control, which was defined as Jerry leaving the
                           company, among other things. I know that Paul was in
                           that group. Is Paul going to leave or is he going to
                           stay? Has it become a stick around bonus rather than
                           a severance bonus?

P. Lo                      Thank you for asking the question. I think I'm
                           committed to push the company through the merger and
                           also help the company for the integration. Then I'll
                           get to know the people better and decide my future.

B. Frerick                 Okay. So the money's going to be paid but you're
                           staying. Then one last thing, Brad. You said that
                           there's probably about a dollar of share worth of EBG
                           that's going to be lost as a result of the accounting
                           rules. Essentially how does that evaporate and not be
                           shown on the financial statements?


                                       34

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 35




B. Henske                  So there's two things, two parts to it. The first is,
                           as I said, I think the combined company will very
                           rapidly move to the Synopsys orders mix, and that's
                           not revenue lost. Effectively, we'll see the same
                           phenomenon on those orders that we saw a year and a
                           quarter ago when Synopsys moved to a ratable revenue.
                           So all of that stuff will go into backlog, deferred,
                           and the like.

B. Frerick                 Got it. So their backlog isn't what it used to be;
                           it's something else now.

B. Henske                  No. That's not my point, and I'll come to that in a
                           second. The notion is that we think about orders that
                           we take post the closing. A higher percentage of
                           those will be subscription orders than they would
                           have been presumably for Avant! standalone, at least
                           if they ... mix.

                           The second thing is a more complicated accounting
                           question, which is in purchase accounting for mergers
                           of this type, and this isn't a thing that you need to
                           ... with the way the purchase accounting rules are
                           written. It is that liability isn't actually deferred
                           revenue and backlog. If you think about it for
                           second, our accounting liabilities are only valued to
                           the extent of costs incurred. The cost of continuing
                           to deliver the software on, for example, a three-year
                           license, even if you're going to get paid over that

                                       35

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 36




                           period and continue to deliver updates, it is a thing
                           that's open to some debate. This has become an issue
                           that's shown up with the demise of pooling, and it's
                           clearly an issue that if you speak to the SEC and the
                           EITF which is looking at this, the answer you get is
                           we agree this makes no common sense and it's a thing
                           we're looking at, but it's how the rules are written
                           today.

                           We are somewhat optimistic that we will get a better
                           answer. In fact, it will be a better answer in the
                           accounting world generally by the time this deal
                           closes. Because effectively what happens is that real
                           orders that Avant! booked and customers will pay us
                           real cash for will evaporate as revenue out of the
                           universe, a thing that we don't think makes a lot of
                           sense.

B. Frerick                 But your cash account will go up.

B. Henske                  Absolutely. We'll get all the cash that would have
                           happened otherwise.

B. Frerick                 Okay. Finally, I presume that the various financial
                           charges that will ensue will be taken in the quarter
                           you close?


                                       36

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 37




B. Henske                  Yes.

B. Frerick                 Thank you.

Moderator                  Thank you. At this time I'd like to turn the
                           conference back to the host. There are no further
                           questions.

A. de Geus                 Thank you for your questions. Actually, I will return
                           it back to the operator with some additional legal
                           statements to make about the acquisition, but we
                           appreciate your participation today.

Moderator                  Thank you. In connection with the proposed merger,
                           Synopsys and Avant! will file a joint proxy statement
                           prospectus with the SEC. Investors and security
                           holders are urged to read the joint proxy statement
                           prospectus regarding the proposed merger when it
                           becomes available because it will contain important
                           information.


                                       37

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 38




                           Investors and security holders may obtain a free copy
                           of the joint proxy statement prospectus when
                           available, and other related documents filed by
                           Synopsys and Avant! with the SEC at SEC's Web site at
                           www.SEC.gov.

                           The joint proxy statement prospectus, when it is
                           available, and the other documents, may also be
                           obtained for free by accessing Synopsys' Web site at
                           www.synopsys.com or by directing a request by mail or
                           telephone to 700 East Middlefield Road, Mountain
                           View, California, 94043, attention Company Secretary;
                           650-584-5000; or by accessing Avant!'s Web site at
                           www.Avant!corp.com or by directing a request by mail
                           or telephone to 4671 Bayside Parkway, Freemont,
                           California, 94538, attention Company Secretary,
                           510-413-8000.

                           Synopsys, Avant! and their respective directors,
                           executive officers, and certain other members of
                           management and employees may be soliciting proxies
                           from their respective stockholders in favor of the
                           merger. Information regarding the persons who may
                           under the rules of the SEC be considered participants
                           in the solicitation of the Synopsys stockholders or
                           the Avant! stockholders, as the case may be, in
                           connection with the

                                       38

                                                           SYNOPSYS INCORPORATED
                                                              HOST: AART DE GEUS
                                                  DECEMBER 3, 2001/4:30 P.M. CST
                                                                         PAGE 39




                           proposed merger, will be set forth in the joint proxy
                           statement prospectus when it is filed with the SEC.

                           Ladies and gentlemen, this conference will be
                           available for replay after 11:45 p.m. today through
                           midnight, December 21, 2001. You may access the
                           replay service by dialing 1-800-475-6701 and entering
                           the access code 615293. International participants
                           dial 320-365-3844.

                           This concludes our conference for today, and thank
                           you for using AT&T Executive Teleconference. You may
                           now disconnect.



                                       39