Edges: the 936 pairs asked again, 14 October 2026 (UTC)

README.md

@@ -139,7 +139,7 @@ Two configs, alike in every column but a few: `cards` are models stepped through
 | `inside_value_hex`, `outside_value_hex` | The same two values as the 16 hex digits of their 64 bits: the exact numbers. |
 | `width` | The outside value minus the inside value, as a size. |
 | `adjacent_64_bit_numbers` | True when no 64-bit number lies between the two values. |
-| `stop_name` | The name the answer gives the stop or the end. Empty for a flip, and for the few stops whose sentence carries no name. |
+| `stop_name` | The name the answer gives the stop or the end. Empty for a flip. |
 | `stop_sentence` | The model's own sentence saying why. |
 | `stop_where` | `before the run` or `before the solve` (a sentence, no proof), `part way` (a run, with its proof to the last step that landed), `in the solve` (a solve that could not return its result, with the proof of that outcome) or `declared end`. |
 | `flip` | For a flip: what differs between the two outcomes, as JSON, inside value first. |
@@ -159,7 +159,7 @@ For each model, start from the worked example its own description gives. Change
 
 A stop that belongs to the form of a request and not to a model (a number that is not a finite normal 64-bit number, a count of steps below one or above a million, more than ten thousand recorded states) is left out.
 
-All rows were asked on 13 October 2026 (UTC). A model can change after that: a range widens, a limit moves, a new model arrives. Each row carries its date and the `engine_version` its answer stated, `scripts/replay.py` shows in one line whether a pair still falls the same way, and each model's own description at the address is always the current word.
+All rows were asked on 14 October 2026 (UTC). A model can change after that: a range widens, a limit moves, a new model arrives. Each row carries its date and the `engine_version` its answer stated, `scripts/replay.py` shows in one line whether a pair still falls the same way, and each model's own description at the address is always the current word.
 
 ## The people whose measurements these models were compared with
 
@@ -251,4 +251,4 @@ The paper behind the verifier: Kruze, J., with Super Intelligence (2026). Zero-T
 
 Hand it to your agent.
 
-Written by Super Intelligence, on behalf of Protocol Company. Rows as returned by the address on 13 October 2026 (UTC); the verifier's own descriptions are always the current word.
+Written by Super Intelligence, on behalf of Protocol Company. Rows as returned by the address on 14 October 2026 (UTC); the verifier's own descriptions are always the current word.

coverage.md

@@ -6,52 +6,52 @@ Stops named in a model's description were read from the address on the date the
 
 | Model | Rows | Named stops covered | Not reachable | Not attempted | Outcome flips |
 |---|---|---|---|---|---|
-| `energy/reactor_spert3` | 15 | 4 of 15 | 11 | 0 | 4 |
-| `aerospace/capsule_stardust` | 13 | 5 of 11 | 6 | 0 | 4 |
-| `aerospace/los_jwst_fine_guide` | 57 | 4 of 16 | 12 | 0 | 0 |
-| `energy/grid_gb` | 15 | 6 of 15 | 9 | 0 | 2 |
-| `aerospace/satellite_lageos1` | 18 | 3 of 10 | 7 | 0 | 1 |
-| `materials/tire_eve_r19_ice` | 29 | 7 of 13 | 6 | 0 | 4 |
-| `energy/generator_mmrtg_f1` | 10 | 1 of 8 | 7 | 0 | 5 |
-| `energy/accumulator_sbo450` | 19 | 5 of 16 | 11 | 0 | 0 |
-| `energy/battery_sag` | 7 | 3 of 10 | 7 | 0 | 1 |
-| `materials/cable_stretch` | 12 | 2 of 10 | 8 | 0 | 5 |
-| `signal/cantilever_eth` | 7 | 2 of 8 | 6 | 0 | 0 |
-| `aerospace/capsule_insight` | 15 | 3 of 12 | 9 | 0 | 0 |
-| `energy/cell_18650pf` | 12 | 5 of 12 | 7 | 0 | 1 |
-| `energy/cell_2170_m80` | 15 | 6 of 16 | 10 | 0 | 0 |
-| `energy/cell_2170_model3` | 29 | 9 of 19 | 10 | 0 | 2 |
-| `aerospace/crater_ryugu_sci` | 6 | 2 of 9 | 7 | 0 | 2 |
-| `materials/creep_cmsx6` | 12 | 4 of 12 | 8 | 0 | 3 |
-| `materials/fingerpad_p02_glass` | 14 | 4 of 11 | 7 | 0 | 3 |
-| `energy/grid_node` | 22 | 1 of 11 | 10 | 0 | 2 |
-| `materials/hydraulic_fluid` | 10 | 3 of 10 | 7 | 0 | 2 |
-| `signal/link_gothenburg_10010` | 11 | 4 of 13 | 9 | 0 | 0 |
-| `energy/reactor_spert3_ccore` | 24 | 5 of 18 | 13 | 0 | 11 |
-| `energy/reactor_spert3_fuel` | 16 | 4 of 17 | 13 | 0 | 5 |
-| `energy/reactor_triga_jsi` | 19 | 5 of 22 | 17 | 0 | 6 |
-| `signal/resonance` | 10 | 2 of 11 | 9 | 0 | 0 |
-| `aerospace/solar_system` | 166 | 1 of 16 | 15 | 0 | 0 |
-| `energy/swing` | 12 | 3 of 9 | 6 | 0 | 2 |
-| `signal/tesseract` | 10 | 1 of 8 | 7 | 0 | 0 |
-| `energy/thermal` | 15 | 1 of 8 | 7 | 0 | 3 |
-| `materials/ti64_lattice` | 38 | 3 of 10 | 7 | 0 | 0 |
-| `energy/tokamak_jet_dte1` | 33 | 11 of 27 | 16 | 0 | 0 |
-| `ablator_slab` | 46 | 12 of 27 | 10 | 5 | 0 |
+| `energy/reactor_spert3` | 15 | 6 of 18 | 11 | 1 | 4 |
+| `aerospace/capsule_stardust` | 13 | 7 of 13 | 6 | 0 | 4 |
+| `aerospace/los_jwst_fine_guide` | 57 | 6 of 19 | 12 | 1 | 0 |
+| `energy/grid_gb` | 15 | 8 of 18 | 9 | 1 | 2 |
+| `aerospace/satellite_lageos1` | 18 | 5 of 13 | 8 | 0 | 1 |
+| `materials/tire_eve_r19_ice` | 29 | 8 of 15 | 7 | 0 | 4 |
+| `energy/generator_mmrtg_f1` | 10 | 3 of 10 | 7 | 0 | 5 |
+| `energy/accumulator_sbo450` | 19 | 6 of 19 | 13 | 0 | 0 |
+| `energy/battery_sag` | 7 | 5 of 12 | 7 | 0 | 1 |
+| `materials/cable_stretch` | 12 | 5 of 12 | 7 | 0 | 5 |
+| `signal/cantilever_eth` | 7 | 4 of 10 | 6 | 0 | 0 |
+| `aerospace/capsule_insight` | 15 | 5 of 14 | 9 | 0 | 0 |
+| `energy/cell_18650pf` | 12 | 7 of 14 | 7 | 0 | 1 |
+| `energy/cell_2170_m80` | 15 | 7 of 17 | 9 | 1 | 0 |
+| `energy/cell_2170_model3` | 29 | 11 of 22 | 10 | 1 | 2 |
+| `aerospace/crater_ryugu_sci` | 6 | 4 of 11 | 7 | 0 | 2 |
+| `materials/creep_cmsx6` | 12 | 6 of 14 | 8 | 0 | 3 |
+| `materials/fingerpad_p02_glass` | 14 | 6 of 14 | 7 | 1 | 3 |
+| `energy/grid_node` | 22 | 5 of 13 | 8 | 0 | 2 |
+| `materials/hydraulic_fluid` | 10 | 5 of 12 | 7 | 0 | 2 |
+| `signal/link_gothenburg_10010` | 11 | 6 of 16 | 10 | 0 | 0 |
+| `energy/reactor_spert3_ccore` | 24 | 7 of 21 | 13 | 1 | 11 |
+| `energy/reactor_spert3_fuel` | 16 | 6 of 20 | 13 | 1 | 5 |
+| `energy/reactor_triga_jsi` | 19 | 7 of 25 | 17 | 1 | 6 |
+| `signal/resonance` | 10 | 5 of 13 | 8 | 0 | 0 |
+| `aerospace/solar_system` | 166 | 3 of 18 | 15 | 0 | 0 |
+| `energy/swing` | 12 | 5 of 11 | 6 | 0 | 2 |
+| `signal/tesseract` | 10 | 3 of 11 | 8 | 0 | 0 |
+| `energy/thermal` | 15 | 3 of 10 | 7 | 0 | 3 |
+| `materials/ti64_lattice` | 38 | 6 of 13 | 7 | 0 | 0 |
+| `energy/tokamak_jet_dte1` | 33 | 13 of 30 | 17 | 0 | 0 |
+| `ablator_slab` | 46 | 12 of 29 | 10 | 7 | 0 |
 | `argon_pair_gas` | 4 | 3 of 12 | 9 | 0 | 0 |
-| `atom_dft` | 2 | 0 of 9 | 9 | 0 | 0 |
+| `atom_dft` | 2 | 1 of 9 | 8 | 0 | 0 |
 | `culture_trichoderma_ambr250` | 29 | 10 of 19 | 7 | 2 | 0 |
 | `fusion_pb11_lhd` | 10 | 6 of 12 | 6 | 0 | 0 |
 | `fusion_pb11_thermal` | 14 | 7 of 15 | 8 | 0 | 0 |
 | `journal_bearing_sheffield` | 4 | 2 of 7 | 5 | 0 | 0 |
-| `modulus_bam_s355` | 6 | 2 of 14 | 11 | 1 | 0 |
+| `modulus_bam_s355` | 6 | 2 of 16 | 11 | 3 | 0 |
 | `pipe_flow_superpipe` | 7 | 3 of 16 | 13 | 0 | 0 |
 | `propeller_apc_10x7e` | 12 | 3 of 11 | 8 | 0 | 0 |
 | `seawater_column` | 20 | 7 of 19 | 11 | 1 | 0 |
 | `step_flow_armaly` | 3 | 2 of 9 | 7 | 0 | 0 |
 | `tokamak_dt_beam_target` | 88 | 14 of 29 | 12 | 3 | 0 |
 
-In all: 936 rows; 190 named stops covered, 400 not reachable from the worked example, 12 not attempted.
+In all: 936 rows; 255 named stops covered, 401 not reachable from the worked example, 25 not attempted.
 
 Left out of the rows on purpose: stops that belong to the form of a request and not to a model (a number that is not a finite normal 64-bit number, a count of steps below 1 or above 1,000,000, more than 10,000 recorded frames).
 
@@ -78,8 +78,9 @@ The SPERT III E-core test reactor, cold, from a step in reactivity to the first
 | `InconsistentState` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationNotOnCard` | not attempted |  | reached by a change of shape: the worked run continued from itself with its start unchanged |
 | flip of `first_past: power_mw above 100.0` | covered | 1 | an outcome flip inside the range |
 | flip of `past_first_maximum` | covered | 3 | an outcome flip inside the range |
 
@@ -102,8 +103,8 @@ The Stardust sample return capsule on its entry of 15 January 2006, from entry i
 | `OffComparedCorridor` | covered | 1 | by `initial.radial_speed_m_s` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `drogue_mach_window` | covered | 2 | an outcome flip inside the range |
 | flip of `first_past: heat_flux_w_m2 above 5000000.0` | covered | 1 | an outcome flip inside the range |
 | flip of `first_past: load_g above 10.0` | covered | 1 | an outcome flip inside the range |
@@ -132,8 +133,9 @@ The line of sight of the James Webb Space Telescope in quiet fine guide, as its
 | `InnovationBeyondFourSigma` | covered | 36 | by `initial.lock_x_arcsec`, `initial.lock_y_arcsec`, `segments[0].load.centroid_x_arcsec`, `segments[0].load.centroid_y_arcsec` and 14 more |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationNotOnCard` | not attempted |  | reached by a change of shape: the worked run continued from itself with its start unchanged |
 
 ## `energy/grid_gb`
 
@@ -158,8 +160,9 @@ The Great Britain synchronous area, the 50 Hz transmission system of England, Sc
 | `FrequencyAboveCard` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationNotOnCard` | not attempted |  | reached by a change of shape: the worked run continued from itself with its start unchanged |
 | flip of `first_past: frequency_hz below 49.7` | covered | 2 | an outcome flip inside the range |
 
 ## `aerospace/satellite_lageos1`
@@ -180,8 +183,9 @@ The laser-ranging satellite LAGEOS-1 in free flight, in a frame turning with the
 | `HorizonOutsideCard` | covered | 1 | by `segments[0].steps` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationWithoutUpstream` | not reachable from the worked example |  | met only past another stop: a stop with no name, `HorizonOutsideCard` comes first |
 | flip of `first_past: position_m[2] above 0.0` | covered | 1 | an outcome flip inside the range |
 
 ## `materials/tire_eve_r19_ice`
@@ -205,7 +209,8 @@ One 235/55 R19 all-season tyre rolling on ice at a held slip on the Terramechani
 | `HoldBeyondMeasured` | covered | 3 | by `dt_s`, `initial.slip_held_s`, `segments[0].steps` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | not reachable from the worked example |  | met only past another stop: `HoldBeyondMeasured` comes first |
 | flip of `first_past: longitudinal_force_n above 1200.0` | covered | 2 | an outcome flip inside the range |
 | flip of `load_above_fitted` | covered | 2 | an outcome flip inside the range |
 
@@ -225,8 +230,8 @@ One radioisotope generator, flight unit F1, on the Curiosity rover: its daily-av
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `ConverterAccountBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `first_past: electrical_power_w below 100.0` | covered | 2 | an outcome flip inside the range |
 | flip of `first_past: electrical_power_w below 110.0` | covered | 1 | an outcome flip inside the range |
 | flip of `past_fitting_span` | covered | 2 | an outcome flip inside the range |
@@ -246,7 +251,7 @@ The nitrogen charge of one HYDAC SBO450-0.6 diaphragm accumulator on the test ri
 | `GasMassOutsideCard` | covered | 4 | by `initial.gas_mass_kg` |
 | `WallTemperatureOutsideCard` | covered | 2 | by `initial.wall_temperature_k` |
 | `PistonSpeedOutsideCard` | not reachable from the worked example |  | met only past another stop: `PistonTravelAboveStep` comes first |
-| `PistonTravelAboveStep` | not reachable from the worked example |  | met only past another stop: `PressureOutsideChargeBands`, `PistonSpeedOutsideCard`, a stop with no name comes first |
+| `PistonTravelAboveStep` | not reachable from the worked example |  | met only past another stop: `PressureOutsideChargeBands`, `PistonSpeedOutsideCard`, `DtAboveCeiling` comes first |
 | `GasTemperatureOutsideCard` | covered | 2 | by `initial.gas_temperature_k` |
 | `PressureOutsideCard` | covered | 1 | by `initial.gas_pressure_pa` |
 | `PressureOutsideChargeBands` | covered | 9 | by `dt_s`, `initial.gas_pressure_pa`, `segments[0].load.piston_speed_m_s`, `segments[0].steps` and 1 more |
@@ -255,7 +260,9 @@ The nitrogen charge of one HYDAC SBO450-0.6 diaphragm accumulator on the test ri
 | `HeatShareAboveCard` | not reachable from the worked example |  | met only past another stop: `ContinuationWithoutUpstream` comes first |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | not reachable from the worked example |  | met only past another stop: `PistonTravelAboveStep` comes first |
+| `ContinuationWithoutUpstream` | not reachable from the worked example |  | met only past another stop: a stop with no name, `HeatShareAboveCard` comes first |
 
 ## `energy/battery_sag`
 
@@ -275,8 +282,8 @@ A 12S lithium-ion pack under a terminal current.
 | `StateOfChargeOutsideCard` | covered | 1 | by `initial.soc` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `sag_warning` | covered | 1 | an outcome flip inside the range |
 
 ## `materials/cable_stretch`
@@ -291,15 +298,14 @@ A Dyneema tendon under a commanded force.
 | `NonFiniteState` | not reachable from the worked example |  | a number that is not finite cannot be written in a request |
 | `NonPositiveDt` | not reachable from the worked example |  | met only past another stop: a stop with no name comes first |
 | `InvalidCable` | not reachable from the worked example |  | names the model's own constants, which no request sets |
-| `ForceAboveNyquist` | not reachable from the worked example |  | no change of one number from the worked example reached it |
+| `ForceAboveNyquist` | covered | 2 | by `segments[0].load.force_n`, `segments[1].load.force_n` |
 | `TensileFailure` | covered | 2 | by `initial.elongation_m`, `initial.velocity_m_s` |
-| `Slack` | not reachable from the worked example |  | met only past another stop: a stop with no name comes first |
+| `Slack` | not reachable from the worked example |  | met only past another stop: a stop with no name, `ForceAboveNyquist` comes first |
 | `SubnormalState` | covered | 1 | by `initial.elongation_m` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the largest load the step resolves (the sentence gives no name) | covered | 2 | |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `control_limited` | covered | 2 | an outcome flip inside the range |
 | flip of `tracking_degraded` | covered | 3 | an outcome flip inside the range |
 
@@ -319,8 +325,8 @@ One aluminium strip clamped at one end at ETH Zürich, ringing down freely in ro
 | `DeflectionBelowCard` | covered | 1 | by `segments[0].steps` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 
 ## `aerospace/capsule_insight`
 
@@ -342,8 +348,8 @@ The InSight entry capsule on its entry at Mars of 26 November 2018, from the top
 | `OffComparedCorridor` | covered | 7 | by `initial.radial_speed_m_s`, `initial.radius_m`, `initial.transverse_speed_m_s`, `segments[1].load.lift_over_drag` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 
 ## `energy/cell_18650pf`
 
@@ -364,9 +370,9 @@ One Panasonic NCR18650PF cell in a held 1C discharge from full charge, with no t
 | `UndervoltageCutoff` | covered | 1 | by `segments[0].steps` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| `ContinuationWithoutUpstream` | covered | 1 | not in the description's list of stops; by `initial.soc` |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationWithoutUpstream` | covered | 1 | by `initial.soc` |
 | flip of `sag_warning` | covered | 1 | an outcome flip inside the range |
 
 ## `energy/cell_2170_m80`
@@ -381,7 +387,7 @@ One Tesla Model 3 2170 lithium-ion cell, cell m80 alone, from 0 to 40 degC, unde
 | `NonFiniteState` | not reachable from the worked example |  | a number that is not finite cannot be written in a request |
 | `NonPositiveDt` | not reachable from the worked example |  | met only past another stop: a stop with no name comes first |
 | `InvalidCell` | not reachable from the worked example |  | names the model's own constants, which no request sets |
-| `StepNotOneSecond` | not reachable from the worked example |  | no change of one number from the worked example reached it |
+| `StepNotOneSecond` | covered | 2 | by `dt_s` |
 | `BlockNotRecognized` | covered | 2 | by `initial.block_chamber_c` |
 | `BlockShownWrong` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `CaseTemperatureOutsideCard` | not reachable from the worked example |  | met only past another stop: `CaseTemperatureOutsideBlock` comes first |
@@ -393,8 +399,7 @@ One Tesla Model 3 2170 lithium-ion cell, cell m80 alone, from 0 to 40 degC, unde
 | `UpperVoltageLimit` | covered | 1 | by `segments[1].load.current_a` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `ContinuationNotOnCard` | not attempted |  | reached by a change of shape: the worked run continued from itself with its start unchanged |
 
 ## `energy/cell_2170_model3`
 
@@ -422,9 +427,10 @@ One Tesla Model 3 2170 lithium-ion cell, any of the three cells m80, m1000 and m
 | `OvervoltageLimit` | covered | 2 | by `segments[0].load.current_a`, `segments[1].load.current_a` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| `ContinuationWithoutUpstream` | covered | 4 | not in the description's list of stops; by `initial.case_temperature_least_c`, `initial.case_temperature_most_c`, `segments[0].load.case_temperature_c` |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationWithoutUpstream` | covered | 4 | by `initial.case_temperature_least_c`, `initial.case_temperature_most_c`, `segments[0].load.case_temperature_c` |
+| `ContinuationNotOnCard` | not attempted |  | reached by a change of shape: the worked run continued from itself with its start unchanged |
 | flip of `sustained_above_1c` | covered | 2 | an outcome flip inside the range |
 
 ## `aerospace/crater_ryugu_sci`
@@ -444,8 +450,8 @@ The crater made on asteroid Ryugu by the 2 kg copper impactor of Hayabusa2 on 5
 | `WallMovingInward` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `stopped` | covered | 2 | an outcome flip inside the range |
 
 ## `materials/creep_cmsx6`
@@ -468,8 +474,8 @@ One cast of the single-crystal nickel alloy CMSX-6, loaded along [001] at 980 de
 | `StepTooSmallToResolve` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `creep_rate_rising` | covered | 3 | an outcome flip inside the range |
 
 ## `materials/fingerpad_p02_glass`
@@ -491,8 +497,9 @@ One human finger pad pressed on flat glass at 2 N (1.93 to 2.07 N) and twisted a
 | `TwistBeyondMeasured` | covered | 2 | by `segments[0].load.twist_rate_deg_s`, `segments[0].steps` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationNotOnCard` | not attempted |  | reached by a change of shape: the worked run continued from itself with its start unchanged |
 | flip of `full_slip` | covered | 3 | an outcome flip inside the range |
 
 ## `energy/grid_node`
@@ -512,11 +519,10 @@ A copper fuse link between an upstream voltage and a load current.
 | `CopperMelt` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| `CurrentOutsideCard` | not reachable from the worked example |  | no change of one number from the worked example reached it |
-| `VoltageOutsideCard` | not reachable from the worked example |  | no change of one number from the worked example reached it |
-| a field's declared bound (the sentence gives no name) | covered | 12 | |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `CurrentOutsideCard` | covered | 6 | by `initial.current_a`, `segments[0].load.load_current_a`, `segments[1].load.load_current_a` |
+| `VoltageOutsideCard` | covered | 6 | by `initial.voltage_v`, `segments[0].load.upstream_voltage_v`, `segments[1].load.upstream_voltage_v` |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `surge` | covered | 2 | an outcome flip inside the range |
 
 ## `materials/hydraulic_fluid`
@@ -531,14 +537,14 @@ A mineral-oil column under a commanded flow.
 | `NonFiniteState` | not reachable from the worked example |  | a number that is not finite cannot be written in a request |
 | `NonPositiveDt` | not reachable from the worked example |  | met only past another stop: a stop with no name comes first |
 | `InvalidChamber` | not reachable from the worked example |  | names the model's own constants, which no request sets |
-| `FlowAboveNyquist` | not reachable from the worked example |  | no change of one number from the worked example reached it |
+| `FlowAboveNyquist` | not reachable from the worked example |  | met only past another stop: `FlowAboveAcoustic` comes first |
 | `FlowAboveAcoustic` | covered | 2 | by `segments[0].load.flow_m3_s`, `segments[1].load.flow_m3_s` |
 | `Cavitation` | covered | 3 | by `initial.pressure_pa`, `segments[0].load.flow_m3_s`, `segments[1].load.flow_m3_s` |
 | `PressureAboveCard` | covered | 1 | by `initial.pressure_pa` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `column_limited` | covered | 1 | an outcome flip inside the range |
 | flip of `column_soft` | covered | 1 | an outcome flip inside the range |
 
@@ -563,8 +569,9 @@ One 32.445 GHz microwave link across 1.26 km of Gothenburg in rain, OpenMRG link
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `AntennaAccountBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationWithoutUpstream` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 
 ## `energy/reactor_spert3_ccore`
 
@@ -592,8 +599,9 @@ The SPERT III C-core test reactor (stainless-steel-clad, highly enriched plates)
 | `InconsistentState` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationNotOnCard` | not attempted |  | reached by a change of shape: the worked run continued from itself with its start unchanged |
 | flip of `past_plate_maximum` | covered | 4 | an outcome flip inside the range |
 | flip of `past_power_peak` | covered | 3 | an outcome flip inside the range |
 | flip of `prompt_supercritical` | covered | 4 | an outcome flip inside the range |
@@ -623,8 +631,9 @@ The SPERT III E-core test reactor in low-initial-power bursts at three inlet tem
 | `InconsistentState` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationNotOnCard` | not attempted |  | reached by a change of shape: the worked run continued from itself with its start unchanged |
 | flip of `past_first_maximum` | covered | 3 | an outcome flip inside the range |
 | flip of `rod_moving` | covered | 2 | an outcome flip inside the range |
 
@@ -658,8 +667,9 @@ The TRIGA Mark II reactor of the Jozef Stefan Institute, Ljubljana, with its 56-
 | `FuelTemperatureBeyondCard` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationNotOnCard` | not attempted |  | reached by a change of shape: the worked run continued from itself with its start unchanged |
 | flip of `prompt_supercritical` | covered | 4 | an outcome flip inside the range |
 | flip of `rod_moving` | covered | 2 | an outcome flip inside the range |
 
@@ -675,16 +685,15 @@ A 10 Hz mount oscillator under an imposed acceleration.
 | `NonFiniteState` | not reachable from the worked example |  | a number that is not finite cannot be written in a request |
 | `NonPositiveDt` | not reachable from the worked example |  | met only past another stop: a stop with no name comes first |
 | `InvalidOscillator` | not reachable from the worked example |  | names the model's own constants, which no request sets |
-| `ForceAboveNyquist` | not reachable from the worked example |  | no change of one number from the worked example reached it |
+| `ForceAboveNyquist` | covered | 2 | by `segments[1].load.accel_m_s2` |
 | `AmplitudeAboveCard` | covered | 2 | by `segments[0].load.accel_m_s2` |
 | `StartTimeOutsideCard` | not reachable from the worked example |  | met only past another stop: a stop with no name, `ContinuationWithoutUpstream` comes first |
 | `LedgerNotOfThisState` | not reachable from the worked example |  | met only past another stop: `ContinuationWithoutUpstream`, `AmplitudeAboveCard`, a stop with no name comes first |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| `ContinuationWithoutUpstream` | covered | 4 | not in the description's list of stops; by `initial.displacement_m`, `initial.velocity_m_s` |
-| the largest load the step resolves (the sentence gives no name) | covered | 2 | |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationWithoutUpstream` | covered | 4 | by `initial.displacement_m`, `initial.velocity_m_s` |
 
 ## `aerospace/solar_system`
 
@@ -709,9 +718,9 @@ The Solar System as thirteen point masses in free motion: the Sun, Mercury, Venu
 | `SpontaneousGeneration` | not reachable from the worked example |  | met only past another stop: `ContinuationWithoutUpstream`, `OrbitOutsideCard`, `AngularMomentumBreach` comes first |
 | `FirstLawBreach` | not reachable from the worked example |  | met only past another stop: `ContinuationWithoutUpstream`, `AngularMomentumBreach`, `OrbitOutsideCard` comes first |
 | `AngularMomentumBreach` | not reachable from the worked example |  | met only past another stop: `ContinuationWithoutUpstream`, `SpontaneousGeneration`, `FirstLawBreach` comes first |
-| `ContinuationWithoutUpstream` | covered | 164 | not in the description's list of stops; by `initial.angular_momentum_anchor[0]`, `initial.angular_momentum_anchor[1]`, `initial.angular_momentum_anchor[2]`, `initial.ceres_position_m[0]` |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationWithoutUpstream` | covered | 164 | by `initial.angular_momentum_anchor[0]`, `initial.angular_momentum_anchor[1]`, `initial.angular_momentum_anchor[2]`, `initial.ceres_position_m[0]` and 78 more |
 
 ## `energy/swing`
 
@@ -730,8 +739,8 @@ A synchronous 60 Hz machine under mechanical power.
 | `DispatchOutsideCard` | covered | 4 | by `segments[0].load.p_mech_pu`, `segments[1].load.p_mech_pu` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `pll_slipped` | covered | 2 | an outcome flip inside the range |
 
 ## `signal/tesseract`
@@ -746,13 +755,13 @@ A drive-mode Duffing resonator under acceleration, an external rate, and sensed
 | `NonFiniteState` | not reachable from the worked example |  | a number that is not finite cannot be written in a request |
 | `NonPositiveDt` | not reachable from the worked example |  | met only past another stop: a stop with no name comes first |
 | `InvalidResonator` | not reachable from the worked example |  | names the model's own constants, which no request sets |
-| `ForceAboveNyquist` | not reachable from the worked example |  | no change of one number from the worked example reached it |
-| `AmplitudeOutsideCard` | covered | 4 | by `segments[0].load.accel_m_s2`, `segments[1].load.accel_m_s2` |
-| `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| a field's declared bound (the sentence gives no name) | covered | 4 | |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `ForceAboveNyquist` | not reachable from the worked example |  | met only past another stop: `AmplitudeOutsideCard` comes first |
+| `AmplitudeOutsideCard` | covered | 8 | by `initial.displacement_m`, `initial.velocity_m_s`, `segments[0].load.accel_m_s2`, `segments[1].load.accel_m_s2` |
+| `SpontaneousGeneration` | not reachable from the worked example |  | met only past another stop: `ContinuationWithoutUpstream` comes first |
+| `FirstLawBreach` | not reachable from the worked example |  | met only past another stop: `ContinuationWithoutUpstream` comes first |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationWithoutUpstream` | not reachable from the worked example |  | met only past another stop: a stop with no name, `FirstLawBreach`, `SpontaneousGeneration` comes first |
 
 ## `energy/thermal`
 
@@ -770,8 +779,8 @@ An avionics cold plate under heater power and a bath temperature.
 | `InvalidNode` | not reachable from the worked example |  | names the model's own constants, which no request sets |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
 | flip of `derated` | covered | 3 | an outcome flip inside the range |
 
 ## `materials/ti64_lattice`
@@ -787,14 +796,14 @@ An annealed Ti-6Al-4V lattice column under nodal force, torque, and temperature.
 | `NonPositiveDt` | not reachable from the worked example |  | met only past another stop: a stop with no name comes first |
 | `TemperatureOutsideCard` | covered | 2 | by `segments[0].load.temperature_k`, `segments[1].load.temperature_k` |
 | `InvalidCell` | not reachable from the worked example |  | names the model's own constants, which no request sets |
-| `YieldReached` | covered | 2 | by `segments[0].load.temperature_k`, `segments[1].load.temperature_k` |
+| `YieldReached` | covered | 14 | by `segments[0].load.force_n[0]`, `segments[0].load.force_n[1]`, `segments[0].load.force_n[2]`, `segments[0].load.temperature_k` and 4 more |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| `StartNotWritten` | not reachable from the worked example |  | met only past another stop: `ContinuationWithoutUpstream`, `YieldReached`, a stop with no name comes first |
-| `ContinuationWithoutUpstream` | covered | 14 | not in the description's list of stops; by `initial.position_m[0]`, `initial.position_m[1]`, `initial.position_m[2]`, `initial.start_temperature_k` |
-| a field's declared bound (the sentence gives no name) | covered | 18 | |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `StartNotWritten` | covered | 6 | by `initial.start_force_n[0]`, `initial.start_force_n[1]`, `initial.start_force_n[2]` |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ForceAboveNyquist` | not reachable from the worked example |  | met only past another stop: `YieldReached` comes first |
+| `ContinuationWithoutUpstream` | covered | 14 | by `initial.position_m[0]`, `initial.position_m[1]`, `initial.position_m[2]`, `initial.start_temperature_k` and 3 more |
 
 ## `energy/tokamak_jet_dte1`
 
@@ -831,8 +840,9 @@ The plasma of the JET tokamak in an ELMy H-mode pulse of 1996 to 1997, deuterium
 | `TimeBeyondCard` | covered | 1 | by `segments[0].steps` |
 | `SpontaneousGeneration` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `FirstLawBreach` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| the step ceiling (the sentence gives no name) | covered | 1 | |
-| the step floor (the sentence gives no name) | covered | 1 | |
+| `DtBelowFloor` | covered | 1 | by `dt_s` |
+| `DtAboveCeiling` | covered | 1 | by `dt_s` |
+| `ContinuationWithoutUpstream` | not reachable from the worked example |  | met only past another stop: a stop with no name, `TimeBeyondCard` comes first |
 
 ## `ablator_slab`
 
@@ -846,9 +856,11 @@ A flat slab of charring heat-shield material heated on one face, held at a tempe
 | `ThicknessOutOfRange` | covered | 1 | by `parameters.thickness_m` |
 | `StartTemperatureOutOfRange` | covered | 2 | by `parameters.start_temperature_k` |
 | `ThermocoupleOutsideSlab` | covered | 7 | by `parameters.thermocouple_depths_m[0]`, `parameters.thermocouple_depths_m[1]`, `parameters.thermocouple_depths_m[2]`, `parameters.thermocouple_depths_m[3]` and 3 more |
+| `UnknownFace` | not attempted |  | reached by a change of shape: the word face changed to one not listed |
 | `HeldTemperatureOutOfRange` | covered | 2 | by `parameters.held_temperature_k` |
 | `HoldDurationOutOfRange` | covered | 2 | by `parameters.hold_duration_s` |
 | `ContinueAfterOutOfRange` | covered | 1 | by `parameters.continue_after_s` |
+| `UnknownStreamGas` | not attempted |  | reached by a change of shape: the word stream_gas changed to one not listed |
 | `StreamOxygenOutOfRange` | not reachable from the worked example |  | met only past another stop: `QuestionNotCompared` comes first |
 | `StreamArgonOutOfRange` | not reachable from the worked example |  | met only past another stop: a stop with no name, `QuestionNotCompared` comes first |
 | `HistoryDurationOutOfRange` | covered | 1 | by `parameters.history_time_s[2]` |
@@ -899,7 +911,7 @@ Spin-unpolarized, non-relativistic local-density ground state of one spherical n
 
 | Stop | Status | Rows | Note |
 |---|---|---|---|
-| `AtomicNumberOutOfRange` | not reachable from the worked example |  | no change of one number from the worked example reached it |
+| `AtomicNumberOutOfRange` | covered | 2 | by `parameters.atomic_number` |
 | `ShellsDoNotHoldElectrons` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `ElectronCountBroken` | not reachable from the worked example |  | a conservation account; it held in every run tried |
 | `NegativeDensity` | not reachable from the worked example |  | no change of one number from the worked example reached it |
@@ -908,7 +920,6 @@ Spin-unpolarized, non-relativistic local-density ground state of one spherical n
 | `EigenvalueStepOutOfRange` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `NotConverged` | not reachable from the worked example |  | every solve tried settled |
 | `VirialBroken` | not reachable from the worked example |  | a conservation account; it held in every run tried |
-| another stop whose sentence gives no name | covered | 2 | |
 
 ## `culture_trichoderma_ambr250`
 
@@ -1021,6 +1032,8 @@ Young's modulus and shear modulus of one of four test bars, each about 100 mm lo
 | `PoissonRatioOutOfRange` | not reachable from the worked example |  | no change of one number from the worked example reached it |
 | `ModesInconsistent` | covered | 2 | by `parameters.frequencies_hz[0]`, `parameters.frequencies_hz[2]` |
 | `PredictedEdgewiseOutOfRange` | not reachable from the worked example |  | no change of one number from the worked example reached it |
+| `UnknownBar` | not attempted |  | reached by a change of shape: the word bar changed to one not listed |
+| `TooManyFrequencies` | not attempted |  | reached by a change of shape: the list frequencies_hz one longer |
 
 ## `pipe_flow_superpipe`
 

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