TLC2 Version 2.19 of 08 August 2024 (rev: 5a47802)
Warning: Please run the Java VM which executes TLC with a throughput optimized garbage collector by passing the "-XX:+UseParallelGC" property.
(Use the -nowarning option to disable this warning.)
Running breadth-first search Model-Checking with fp 108 and seed 4830007830571044003 with 1 worker on 8 cores with 4002MB heap and 64MB offheap memory [pid: 480790] (Linux 6.12.94+ amd64, Eclipse Adoptium 21.0.13 x86_64, MSBDiskFPSet, DiskStateQueue).
Parsing file /workspace/tla-tutorial/Leader.tla
Parsing file /tmp/TLC.tla
Parsing file /tmp/Naturals.tla
Parsing file /tmp/Sequences.tla
Parsing file /tmp/FiniteSets.tla
Semantic processing of module Naturals
Semantic processing of module Sequences
Semantic processing of module FiniteSets
Semantic processing of module TLC
Semantic processing of module Leader
Starting... (2026-10-30 11:04:45)
Implied-temporal checking--satisfiability problem has 1 branches.
Computing initial states...
Finished computing initial states: 1 distinct state generated at 2026-10-30 11:04:45.
Progress(2) at 2026-10-30 11:04:45: 3 states generated, 3 distinct states found, 0 states left on queue.
Checking temporal properties for the complete state space with 3 total distinct states at (2026-10-30 11:04:45)
Error: Temporal properties were violated.

Error: The following behavior constitutes a counter-example:

State 1: <Initial predicate>
leader = "none"

State 2: <Pick line 8, col 12 to line 8, col 41 of module Leader>
leader = t2

State 3: Stuttering
Finished checking temporal properties in 00s at 2026-10-30 11:04:45
3 states generated, 3 distinct states found, 0 states left on queue.
Finished in 00s at (2026-10-30 11:04:45)
