[OP CONFORMANCE][TEMPLATE] Fix Interpolate test fails in op conformance Fixes #23553

[ktk-07]

Summary

This PR skips an unsupported Interpolate-11 linear_onnx configuration in op conformance tests.

The failing IR uses:

• mode = "linear_onnx"
• axes = [1,2]
• input shape [1, 65, 65, 21] (4D)

According to the OpenVINO Interpolate specification, when mode="linear_onnx" the supported axes are:

Rank	Supported axes
2D	{0,1}
3D	{0,1,2}
4D	{2,3}
5D	{2,3,4}

For a 4D tensor, only {2,3} are supported.
The conformance IR uses axes=[1,2], which is outside the documented supported configuration.
interploate-11 documentation
interpolate-4 documentation

The reference implementation therefore throws:

[ RUN      ] conformance_Interpolate/ReadIRTest.Inference/Op=Interpolate.11_Type=f32_Shape=static_IR=0f670e49f962b0a7abc6b4f1fbf9592db592a6a78eb3e083dd4027b9f9607430_Device=TEMPLATE_Config=()

MEM_USAGE=71868KB
[ CONFORMANCE ] Influence coefficient: 8.71821e-05
[ PLUGIN      ] `SubgraphBaseTest::compile_model()` is started
[ PLUGIN      ] `SubgraphBaseTest::compile_model()` is finished successfully. Duration is 0.0654674s
[ PLUGIN      ] `SubgraphBaseTest::get_plugin_outputs()` is started
/home/efode/repo/openvino/src/tests/functional/shared_test_classes/src/base/ov_subgraph.cpp:94: Failure
Exception from src/inference/src/cpp/infer_request.cpp:223:
Exception from src/core/reference/include/openvino/reference/interpolate.hpp:426:
Axes are not correct!


[  FAILED  ] conformance_Interpolate/ReadIRTest.Inference/Op=Interpolate.11_Type=f32_Shape=static_IR=0f670e49f962b0a7abc6b4f1fbf9592db592a6a78eb3e083dd4027b9f9607430_Device=TEMPLATE_Config=(), where GetParam() = ("/home/efode/repo/openvino/src/tests/test_utils/functional_test_utils/layer_tests_summary/temp/models/2023.3.0-13657-d5b0f4d2d73/operation/static/Interpolate-11/f32/0f670e49f962b0a7abc6b4f1fbf9592db592a6a78eb3e083dd4027b9f9607430.xml", "") (2498 ms)

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Root Cause

The failure occurs in the reference implementation:

• src/core/reference/include/openvino/reference/interpolate.hpp
  linear_onnx_func validates the axes and throws an exception when encountering [1,2] for 4D input. OPENVINO_THROW("Axes are not correct!");

This causes the Inference test to fail during reference calculation, while QueryModel and ImportExport pass.

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Change

Solution was to mark the test as SKIPPED instead of FAILED so it is not reported as a plugin failure.

A check was added in:

• src/tests/functional/plugin/conformance/test_runner/op_conformance_runner/src/read_ir/read_ir.cpp
• Inside:
  • ReadIRTest::SetUp()

If the test detects:

• Interpolate v4/v11
• mode = linear_onnx
• 4D input
• axes = [1,2]

the test calls:
GTEST_SKIP() with a short explanation. "Interpolate linear_onnx with axes [1,2] for 4D is not supported by reference; skipping."

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Alternatives Considered

1. Extend the reference implementation

• Support axes=[1,2] in reference/interpolate.hpp. However this would change reference behavior and a previous attempt (PR Fix #23553: [OP CONFORMANCE][TEMPLATE] Interpolate test fails in op c… #23636) which caused additional failures.
• Supporting [1,2] would require extending the reference behavior beyond the documented specification and may introduce inconsistencies across plugins.

2. Filter this IR during conformance IR generation

The problematic IR could be removed from the conformance dataset so that only valid configurations are tested.

This may be a better long-term solution but requires changes to the IR generation pipeline.

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IMPORTANT NOTES

This PR provides a minimal solution to prevent an out-of-spec IR configuration from being reported as a plugin failure.

Maintainer feedback would be helpful to determine whether:

• skipping is the preferred approach or
• the IR should be removed from the conformance dataset OR
• or supporting the axes=[1,2] option by extending the reference implementation.

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Tickets

Fixes #23553

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AI Assistance

AI was used to help navigate the OpenVINO codebase and understand the conformance testing flow.
All code changes and final validation were implemented manually and verified by me.