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Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Tapaal compared to other tools (
Last Updated
Jun 17, 2026

Introduction

This page presents how Tapaal do cope efficiently with the ReachabilityCardinality examination face to the other participating tools. In this page, we consider «All» models.

The next sections will show chart comparing performances in terms of both memory and execution time.The x-axis corresponds to the challenging tool where the y-axes represents Tapaal' performances. Thus, points below the diagonal of a chart denote comparisons favorables to the tool while others corresponds to situations where the challenging tool performs better.

You might also find plots out of the range that denote the case were at least one tool could not answer appropriately (error, time-out, could not compute or did not competed).

Tapaal versus ITS-Tools

Some statistics are displayed below, based on 3906 runs (1953 for Tapaal and 1953 for ITS-Tools, so there are 1953 plots on each of the two charts). Each execution was allowed 1 hour and 16 GByte of memory. Then performance charts comparing Tapaal to ITS-Tools are shown (you may click on one graph to enlarge it).

Statistics on the executions
  Tapaal ITS-Tools Both tools   Tapaal ITS-Tools
All computed OK 16 0 1618   Smallest Memory Footprint
Tapaal = ITS-Tools — — 45 Times tool wins 1675 278
Tapaal > ITS-Tools — — 174   Shortest Execution Time
Tapaal < ITS-Tools — — 100 Times tool wins 1161 792
Do not compete 0 0 0
Error detected 0 2 0  
Cannot Compute + Time-out 0 14 0


On the chart below, denote cases where the two tools did computed all results without error, denote cases where the two tool did computed the same number of values (but not al values in the examination), denote cases where Tapaal computed more values than ITS-Tools, denote cases where Tapaal computed less values than ITS-Tools, denote the cases where at least one tool did not competed, denote the cases where at least one tool computed a bad value and denote the cases where at least one tool stated it could not compute a result or timed-out.

Tapaal wins when points are below the diagonal, ITS-Tools wins when points are above the diagonal.

memory chart time chart

Tapaal versus smpt

Some statistics are displayed below, based on 3906 runs (1953 for Tapaal and 1953 for smpt, so there are 1953 plots on each of the two charts). Each execution was allowed 1 hour and 16 GByte of memory. Then performance charts comparing Tapaal to smpt are shown (you may click on one graph to enlarge it).

Statistics on the executions
  Tapaal smpt Both tools   Tapaal smpt
All computed OK 25 0 1321   Smallest Memory Footprint
Tapaal = smpt — — 53 Times tool wins 1645 308
Tapaal > smpt — — 509   Shortest Execution Time
Tapaal < smpt — — 45 Times tool wins 1375 578
Do not compete 0 0 0
Error detected 0 0 0  
Cannot Compute + Time-out 0 25 0


On the chart below, denote cases where the two tools did computed all results without error, denote cases where the two tool did computed the same number of values (but not al values in the examination), denote cases where Tapaal computed more values than smpt, denote cases where Tapaal computed less values than smpt, denote the cases where at least one tool did not competed, denote the cases where at least one tool computed a bad value and denote the cases where at least one tool stated it could not compute a result or timed-out.

Tapaal wins when points are below the diagonal, smpt wins when points are above the diagonal.

memory chart time chart

Tapaal versus TY

Some statistics are displayed below, based on 3906 runs (1953 for Tapaal and 1953 for TY, so there are 1953 plots on each of the two charts). Each execution was allowed 1 hour and 16 GByte of memory. Then performance charts comparing Tapaal to TY are shown (you may click on one graph to enlarge it).

Statistics on the executions
  Tapaal TY Both tools   Tapaal TY
All computed OK 1618 0 212   Smallest Memory Footprint
Tapaal = TY — — 0 Times tool wins 1804 149
Tapaal > TY — — 123   Shortest Execution Time
Tapaal < TY — — 0 Times tool wins 1812 141
Do not compete 0 0 0
Error detected 0 12 0  
Cannot Compute + Time-out 0 1606 0


On the chart below, denote cases where the two tools did computed all results without error, denote cases where the two tool did computed the same number of values (but not al values in the examination), denote cases where Tapaal computed more values than TY, denote cases where Tapaal computed less values than TY, denote the cases where at least one tool did not competed, denote the cases where at least one tool computed a bad value and denote the cases where at least one tool stated it could not compute a result or timed-out.

Tapaal wins when points are below the diagonal, TY wins when points are above the diagonal.

memory chart time chart

Tapaal versus 2025-gold

Some statistics are displayed below, based on 3906 runs (1953 for Tapaal and 1953 for 2025-gold, so there are 1953 plots on each of the two charts). Each execution was allowed 1 hour and 16 GByte of memory. Then performance charts comparing Tapaal to 2025-gold are shown (you may click on one graph to enlarge it).

Statistics on the executions
  Tapaal 2025-gold Both tools   Tapaal 2025-gold
All computed OK 0 0 1720   Smallest Memory Footprint
Tapaal = 2025-gold — — 199 Times tool wins 399 1554
Tapaal > 2025-gold — — 20   Shortest Execution Time
Tapaal < 2025-gold — — 14 Times tool wins 912 1041
Do not compete 0 0 0
Error detected 0 0 0  
Cannot Compute + Time-out 0 0 0


On the chart below, denote cases where the two tools did computed all results without error, denote cases where the two tool did computed the same number of values (but not al values in the examination), denote cases where Tapaal computed more values than 2025-gold, denote cases where Tapaal computed less values than 2025-gold, denote the cases where at least one tool did not competed, denote the cases where at least one tool computed a bad value and denote the cases where at least one tool stated it could not compute a result or timed-out.

Tapaal wins when points are below the diagonal, 2025-gold wins when points are above the diagonal.

memory chart time chart

Tapaal versus BVT-2026

Some statistics are displayed below, based on 3906 runs (1953 for Tapaal and 1953 for BVT-2026, so there are 1953 plots on each of the two charts). Each execution was allowed 1 hour and 16 GByte of memory. Then performance charts comparing Tapaal to BVT-2026 are shown (you may click on one graph to enlarge it).

Important: here, Tapaal is compared to BVT-2026. It is a good way to check how Tapaal compete in terms of resource consomption with the best tools (even virtual). When Tapaal is best, the corresponding plots are on the diagonal of the scatter plots chart.

Statistics on the executions
  Tapaal BVT-2026 Both tools   Tapaal BVT-2026
All computed OK 0 0 1727   Smallest Memory Footprint
Tapaal = BVT-2026 — — 81 Times tool wins 0 1953
Tapaal > BVT-2026 — — 0   Shortest Execution Time
Tapaal < BVT-2026 — — 145 Times tool wins 0 1953
Do not compete 0 0 0
Error detected 0 0 0  
Cannot Compute + Time-out 0 0 0


For this tool, there are no real execution so comparisons are useless.