[log] route {'task_type': 'optimize', 'correctness_stages': ['csim'], 'initial_level': 1, 'budget': 20, 'token_mode': 'full'}
[log] pre_csim_review {'attempt': 1}
[log] kb_search {'query': [], 'hits': 0, 'hit_ids': []}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 20}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 20}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 20}
[log] mechanical_review {'passed': True, 'issues': []}
[log] heartbeat {'stage': 'llm', 'age_s': 7.8, 'stale': False, 'credit_remaining': 20}
[log] review {'verdict': 'pass', 'retry': 0, 'issues': 'PASS'}
[log] pre_csim_fix_applied {'note': 'LLM found issues before first csim'}
[log] heartbeat {'stage': 'csim', 'age_s': 6.9, 'stale': False, 'credit_remaining': 20}
[log] tool_result {'kind': 'csim', 'phase': 'pass', 'ok': True, 'rc': 0, 'elapsed_s': 6.9, 'credit_spent': 1, 'log': ''}
[log] phase_exit {'phase': 'correctness', 'result': 'ok', 'best_level': 1}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 19}
[log] tool_result {'kind': 'synth', 'phase': 'timeout', 'ok': False, 'elapsed_s': 600.1, 'credit_spent': 5, 'log': "\n****** vitis-run v2025.2 (64-bit)\n  **** SW Build 6295257 on 2025-11-13-01:29:13\n  **** Start of session at: Sat Jul 25 21:40:55 2026\n    ** Copyright 1986-2022 Xilinx, Inc. All Rights Reserved.\n    ** Copyright 2022-2025 Advanced Micro Devices, Inc. All Rights Reserved.\n\n  **** HLS Build v2025.2 6295257\nSourcing Tcl script '/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/run_hls.tcl'\nINFO: [HLS 200-1510] Running: open_project synth_proj \nWARNING: [HLS 200-2182] The 'synth_proj' project will not automatically appear within Vitis IDE workspaces and is meant only for TCL batch use.  Please use open_component instead of open_project/open_solution to generate Vitis IDE compatible component files and directory structure.\nResolution: For help on HLS 200-2182 see docs.amd.com/access/sources/dita/topic?Doc_Version=2025.2%20English&url=ug1448-hls-guidance&resourceid=200-2182.html\nINFO: [HLS 200-10] Creating and opening solution '/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj'.\nINFO: [HLS 200-1510] Running: add_files vecadd.cpp \nINFO: [HLS 200-10] Adding design file 'vecadd.cpp' to the project\nINFO: [HLS 200-1510] Running: open_solution sol -flow_target vivado \nINFO: [HLS 200-10] Creating and opening solution '/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol'.\nINFO: [HLS 200-1505] Using flow_target 'vivado'\nResolution: For help on HLS 200-1505 see docs.amd.com/access/sources/dita/topic?Doc_Version=2025.2%20English&url=ug1448-hls-guidance&resourceid=200-1505.html\nINFO: [HLS 200-1510] Running: set_top vecadd \nINFO: [HLS 200-1510] Running: set_part xcu55c-fsvh2892-2L-e \nINFO: [HLS 200-1611] Setting target device to 'xcu55c-fsvh2892-2L-e'\nINFO: [HLS 200-1510] Running: create_clock -period 5.0 -name clk_default \nINFO: [SYN 201-201] Setting up clock 'clk_default' with a period of 5ns.\nINFO: [HLS 200-1510] Running: config_compile -unsafe_math_optimizations \nINFO: [XFORM 203-1172] Optimizing floating point zeros and discarding its signedness.\nINFO: [XFORM 203-1176] Optimizing floating point comparison without checking NaN.\nINFO: [XFORM 203-1173] Reordering floating point operations aggressively.\nINFO: [HLS 200-1510] Running: csynth_design \nINFO: [HLS 200-111] Finished File checks and directory preparation: CPU user time: 0.09 seconds. CPU system time: 0.06 seconds. Elapsed time: 0.15 seconds; current allocated memory: 463.824 MB.\nINFO: [HLS 200-2191] C-Synthesis will use clang-16 as the compiler\nINFO: [HLS 200-10] Analyzing design file 'vecadd.cpp' ... \nWARNING: [HLS 207-7042] unroll pragma is ignored, because it can be only applied inside loop body  (vecadd.cpp:5:1)\nINFO: [HLS 200-111] Finished Source Code Analysis and Preprocessing: CPU user time: 0.3 seconds. CPU system time: 0.3 seconds. Elapsed time: 0.6 seconds; current allocated memory: 465.672 MB.\nINFO: [HLS 200-777] Using interface defaults for 'Vivado' flow target.\nINFO: [HLS 200-1995] There were 20 instructions in the design after the 'Compile/Link' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Unroll/Inline (step 1)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,670 instructions in the design after the 'Unroll/Inline (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,670 instructions in the design after the 'Unroll/Inline (step 3)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,670 instructions in the design after the 'Unroll/Inline (step 4)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 1)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 3)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 4)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 5)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance (step 3)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance (step 4)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 40,967 instructions in the design after the 'HW Transforms' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 40,969 instructions in the design after the 'HW Transforms (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_2/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 214-291] Loop 'VITIS_LOOP_6_1' is marked as complete unroll implied by the pipeline pragma (vecadd.cpp:6:21)\nINFO: [HLS 214-186] Unrolling loop 'VITIS_LOOP_6_1' (vecadd.cpp:6:21) in function 'vecadd' completely with a factor of 4096 (vecadd.cpp:3:0)\nINFO: [HLS 200-111] Finished Compiling Optimization and Transform: CPU user time: 91.41 seconds. CPU system time: 1.91 seconds. Elapsed time: 97.88 seconds; current allocated memory: 475.719 MB.\nINFO: [HLS 200-111] Finished Checking Pragmas: CPU user time: 0 seconds. CPU system time: 0 seconds. Elapsed time: 0 seconds; current allocated memory: 475.719 MB.\nINFO: [HLS 200-10] Starting code transformations ...\nINFO: [HLS 200-111] Finished Standard Transforms: CPU user time: 3.64 seconds. CPU system time: 0.03 seconds. Elapsed time: 3.67 seconds; current allocated memory: 547.004 MB.\nINFO: [HLS 200-10] Checking synthesizability ...\nINFO: [HLS 200-111] Finished Checking Synthesizability: CPU user time: 0.63 seconds. CPU system time: 0 seconds. Elapsed time: 0.64 seconds; current allocated memory: 548.648 MB.\nINFO: [HLS 200-111] Finished Loop, function and other optimizations: CPU user time: 16.22 seconds. CPU system time: 0.08 seconds. Elapsed time: 16.3 seconds; current allocated memory: 702.883 MB.\nINFO: [HLS 200-111] Finished Architecture Synthesis: CPU user time: 84.74 seconds. CPU system time: 2.52 seconds. Elapsed time: 87.26 seconds; current allocated memory: 4.900 GB.\nINFO: [HLS 200-10] Starting hardware synthesis ...\nINFO: [HLS 200-10] Synthesizing 'vecadd' ...\nINFO: [HLS 200-10] ----------------------------------------------------------------\nINFO: [HLS 200-42] -- Implementing module 'vecadd' \nINFO: [HLS 200-10] ----------------------------------------------------------------\nINFO: [SCHED 204-11] Starting scheduling ...\nINFO: [SCHED 204-61] Pipelining function 'vecadd'.\n\n"}
[log] kb_search {'query': ['[HLS 200-1510]', '[HLS 200-2182]', '[HLS 200-10]', '[HLS 200-1505]', '[HLS 200-1611]', '[XFORM 203-1172]', '[XFORM 203-1176]', '[XFORM 203-1173]', '[HLS 200-111]', '[HLS 200-2191]', '[HLS 207-7042]', '[HLS 200-777]', '[HLS 200-1995]', '[HLS 214-291]', '[HLS 214-186]', '[HLS 200-42]'], 'hits': 0, 'hit_ids': []}
[log] heartbeat {'stage': 'llm', 'age_s': 9.9, 'stale': False, 'credit_remaining': 15}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 15}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 15}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 15}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 15}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 15}
[log] mechanical_review {'passed': True, 'issues': []}
[log] review {'verdict': 'pass', 'retry': 0, 'issues': 'PASS'}
[log] heartbeat {'stage': 'csim', 'age_s': 0.0, 'stale': False, 'credit_remaining': 15}
[log] tool_result {'kind': 'csim', 'phase': 'pass', 'ok': True, 'rc': 0, 'elapsed_s': 6.9, 'credit_spent': 6, 'log': ''}
[log] heartbeat {'stage': 'synth', 'age_s': 3.1, 'stale': False, 'credit_remaining': 14}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 14}
[log] tool_result {'kind': 'synth', 'phase': 'pass', 'ok': True, 'elapsed_s': 15.5, 'credit_spent': 10, 'log': ''}
[log] checkpoint {'old': 1, 'new': 2, 'latency': 4102, 'reason': 'synth_ok'}
[log] phase_exit {'phase': 'synth', 'result': 'ok', 'latency': 4102}
[log] phase_enter {'phase': 'optimize', 'best_level': 2, 'best_latency': 4102}
[log] heartbeat {'stage': 'llm', 'age_s': 7.6, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] llm_call {'purpose': 'extract_brief', 'chars': 931, 'prompt_tokens': 601, 'completion_tokens': 2284, 'reasoning_tokens': 2097, 'model': 'qwen3.6-27b'}
[log] design_brief {'chars': 931}
[log] heartbeat {'stage': 'llm', 'age_s': 3.1, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] llm_call {'purpose': 'propose_strategies', 'round': 1, 'count': 3, 'raw_head': '', 'prompt_tokens': 876, 'completion_tokens': 5241, 'reasoning_tokens': 4808, 'model': 'qwen3.6-27b'}
[log] heartbeat {'stage': 'llm', 'age_s': 9.8, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] llm_call {'purpose': 'select_strategies', 'round': 1, 'prompt_tokens': 1124, 'completion_tokens': 3841, 'reasoning_tokens': 3739, 'model': 'qwen3.6-27b'}
[log] strategy_select {'round': 1, 'indices': [0], 'picked': ['Add PIPELINE pragma to loop'], 'all': ['Add PIPELINE pragma to loop', 'Increase UNROLL factor to 16 or 32', 'Configure AXI max_read/write_data_count'], 'reason': 'PIPELINE directly overlaps loop iterations to achieve II=1, cutting latency from ~4100 to ~512 cycles with minimal resource impact; unroll scaling and AXI tuning are secondary refinements that add com', 'rejected': [], 'fallback': False}
[log] heartbeat {'stage': 'llm', 'age_s': 9.4, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] llm_call {'purpose': 'apply_strategies', 'strategies': 'Add PIPELINE pragma to loop', 'retry': 0, 'prompt_tokens': 846, 'completion_tokens': 2169, 'reasoning_tokens': 2081, 'model': 'qwen3.6-27b'}
[log] mechanical_review {'passed': True, 'issues': []}
[log] heartbeat {'stage': 'llm', 'age_s': 9.6, 'stale': False, 'credit_remaining': 10}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 10}
[log] review {'verdict': 'pass', 'retry': 0, 'issues': 'PASS'}
[log] heartbeat {'stage': 'csim', 'age_s': 5.8, 'stale': False, 'credit_remaining': 10}
[log] tool_result {'kind': 'csim', 'phase': 'pass', 'ok': True, 'rc': 0, 'elapsed_s': 6.9, 'credit_spent': 11, 'log': ''}
[log] heartbeat {'stage': 'synth', 'age_s': 8.9, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 9}
[log] tool_result {'kind': 'synth', 'phase': 'timeout', 'ok': False, 'elapsed_s': 600.1, 'credit_spent': 15, 'log': "\n****** vitis-run v2025.2 (64-bit)\n  **** SW Build 6295257 on 2025-11-13-01:29:13\n  **** Start of session at: Sat Jul 25 21:56:26 2026\n    ** Copyright 1986-2022 Xilinx, Inc. All Rights Reserved.\n    ** Copyright 2022-2025 Advanced Micro Devices, Inc. All Rights Reserved.\n\n  **** HLS Build v2025.2 6295257\nSourcing Tcl script '/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/run_hls.tcl'\nINFO: [HLS 200-1510] Running: open_project synth_proj \nWARNING: [HLS 200-2182] The 'synth_proj' project will not automatically appear within Vitis IDE workspaces and is meant only for TCL batch use.  Please use open_component instead of open_project/open_solution to generate Vitis IDE compatible component files and directory structure.\nResolution: For help on HLS 200-2182 see docs.amd.com/access/sources/dita/topic?Doc_Version=2025.2%20English&url=ug1448-hls-guidance&resourceid=200-2182.html\nINFO: [HLS 200-10] Creating and opening solution '/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj'.\nINFO: [HLS 200-1510] Running: add_files vecadd.cpp \nINFO: [HLS 200-10] Adding design file 'vecadd.cpp' to the project\nINFO: [HLS 200-1510] Running: open_solution sol -flow_target vivado \nINFO: [HLS 200-10] Creating and opening solution '/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol'.\nINFO: [HLS 200-1505] Using flow_target 'vivado'\nResolution: For help on HLS 200-1505 see docs.amd.com/access/sources/dita/topic?Doc_Version=2025.2%20English&url=ug1448-hls-guidance&resourceid=200-1505.html\nINFO: [HLS 200-1510] Running: set_top vecadd \nINFO: [HLS 200-1510] Running: set_part xcu55c-fsvh2892-2L-e \nINFO: [HLS 200-1611] Setting target device to 'xcu55c-fsvh2892-2L-e'\nINFO: [HLS 200-1510] Running: create_clock -period 5.0 -name clk_default \nINFO: [SYN 201-201] Setting up clock 'clk_default' with a period of 5ns.\nINFO: [HLS 200-1510] Running: config_compile -unsafe_math_optimizations \nINFO: [XFORM 203-1172] Optimizing floating point zeros and discarding its signedness.\nINFO: [XFORM 203-1176] Optimizing floating point comparison without checking NaN.\nINFO: [XFORM 203-1173] Reordering floating point operations aggressively.\nINFO: [HLS 200-1510] Running: csynth_design \nINFO: [HLS 200-111] Finished File checks and directory preparation: CPU user time: 0.08 seconds. CPU system time: 0.07 seconds. Elapsed time: 0.15 seconds; current allocated memory: 463.824 MB.\nINFO: [HLS 200-2191] C-Synthesis will use clang-16 as the compiler\nINFO: [HLS 200-10] Analyzing design file 'vecadd.cpp' ... \nWARNING: [HLS 207-7042] unroll pragma is ignored, because it can be only applied inside loop body  (vecadd.cpp:5:1)\nINFO: [HLS 200-111] Finished Source Code Analysis and Preprocessing: CPU user time: 0.34 seconds. CPU system time: 0.26 seconds. Elapsed time: 0.6 seconds; current allocated memory: 465.676 MB.\nINFO: [HLS 200-777] Using interface defaults for 'Vivado' flow target.\nINFO: [HLS 200-1995] There were 20 instructions in the design after the 'Compile/Link' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Unroll/Inline (step 1)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,670 instructions in the design after the 'Unroll/Inline (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,670 instructions in the design after the 'Unroll/Inline (step 3)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,670 instructions in the design after the 'Unroll/Inline (step 4)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 1)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 3)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 4)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 5)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance (step 3)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance (step 4)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 40,967 instructions in the design after the 'HW Transforms (step 1)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 40,969 instructions in the design after the 'HW Transforms (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_6/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 214-291] Loop 'VITIS_LOOP_6_1' is marked as complete unroll implied by the pipeline pragma (vecadd.cpp:6:21)\nINFO: [HLS 214-186] Unrolling loop 'VITIS_LOOP_6_1' (vecadd.cpp:6:21) in function 'vecadd' completely with a factor of 4096 (vecadd.cpp:3:0)\nINFO: [HLS 200-111] Finished Compiling Optimization and Transform: CPU user time: 95.91 seconds. CPU system time: 1.74 seconds. Elapsed time: 97.87 seconds; current allocated memory: 475.703 MB.\nINFO: [HLS 200-111] Finished Checking Pragmas: CPU user time: 0 seconds. CPU system time: 0.01 seconds. Elapsed time: 0 seconds; current allocated memory: 475.703 MB.\nINFO: [HLS 200-10] Starting code transformations ...\nINFO: [HLS 200-111] Finished Standard Transforms: CPU user time: 3.64 seconds. CPU system time: 0.04 seconds. Elapsed time: 3.69 seconds; current allocated memory: 546.973 MB.\nINFO: [HLS 200-10] Checking synthesizability ...\nINFO: [HLS 200-111] Finished Checking Synthesizability: CPU user time: 0.63 seconds. CPU system time: 0 seconds. Elapsed time: 0.63 seconds; current allocated memory: 548.613 MB.\nINFO: [HLS 200-111] Finished Loop, function and other optimizations: CPU user time: 15.83 seconds. CPU system time: 0.06 seconds. Elapsed time: 15.89 seconds; current allocated memory: 702.852 MB.\nINFO: [HLS 200-111] Finished Architecture Synthesis: CPU user time: 86.06 seconds. CPU system time: 2.26 seconds. Elapsed time: 88.33 seconds; current allocated memory: 4.900 GB.\nINFO: [HLS 200-10] Starting hardware synthesis ...\nINFO: [HLS 200-10] Synthesizing 'vecadd' ...\nINFO: [HLS 200-10] ----------------------------------------------------------------\nINFO: [HLS 200-42] -- Implementing module 'vecadd' \nINFO: [HLS 200-10] ----------------------------------------------------------------\nINFO: [SCHED 204-11] Starting scheduling ...\nINFO: [SCHED 204-61] Pipelining function 'vecadd'.\n\n"}
[log] optimize_repair {'round': 1, 'repair': 0, 'reason': 'synth_failed', 'phase': 'timeout'}
[log] kb_search {'query': ['[HLS 200-1510]', '[HLS 200-2182]', '[HLS 200-10]', '[HLS 200-1505]', '[HLS 200-1611]', '[XFORM 203-1172]', '[XFORM 203-1176]', '[XFORM 203-1173]', '[HLS 200-111]', '[HLS 200-2191]', '[HLS 207-7042]', '[HLS 200-777]', '[HLS 200-1995]', '[HLS 214-291]', '[HLS 214-186]', '[HLS 200-42]'], 'hits': 0, 'hit_ids': []}
[log] heartbeat {'stage': 'llm', 'age_s': 8.8, 'stale': False, 'credit_remaining': 5}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 5}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 5}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 5}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 5}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 5}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 5}
[log] llm_call {'purpose': 'apply_strategies', 'strategies': 'Add PIPELINE pragma to loop', 'retry': 0, 'prompt_tokens': 2128, 'completion_tokens': 5085, 'reasoning_tokens': 4994, 'model': 'qwen3.6-27b'}
[log] mechanical_review {'passed': True, 'issues': []}
[log] heartbeat {'stage': 'llm', 'age_s': 6.9, 'stale': False, 'credit_remaining': 5}
[log] heartbeat {'stage': 'llm', 'age_s': 10.0, 'stale': False, 'credit_remaining': 5}
[log] review {'verdict': 'pass', 'retry': 0, 'issues': 'PASS'}
[log] heartbeat {'stage': 'csim', 'age_s': 2.0, 'stale': False, 'credit_remaining': 5}
[log] tool_result {'kind': 'csim', 'phase': 'pass', 'ok': True, 'rc': 0, 'elapsed_s': 6.9, 'credit_spent': 16, 'log': ''}
[log] heartbeat {'stage': 'synth', 'age_s': 5.1, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] heartbeat {'stage': 'synth', 'age_s': 10.0, 'stale': False, 'credit_remaining': 4}
[log] tool_result {'kind': 'synth', 'phase': 'timeout', 'ok': False, 'elapsed_s': 600.0, 'credit_spent': 20, 'log': "\n****** vitis-run v2025.2 (64-bit)\n  **** SW Build 6295257 on 2025-11-13-01:29:13\n  **** Start of session at: Sat Jul 25 22:08:10 2026\n    ** Copyright 1986-2022 Xilinx, Inc. All Rights Reserved.\n    ** Copyright 2022-2025 Advanced Micro Devices, Inc. All Rights Reserved.\n\n  **** HLS Build v2025.2 6295257\nSourcing Tcl script '/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/run_hls.tcl'\nINFO: [HLS 200-1510] Running: open_project synth_proj \nWARNING: [HLS 200-2182] The 'synth_proj' project will not automatically appear within Vitis IDE workspaces and is meant only for TCL batch use.  Please use open_component instead of open_project/open_solution to generate Vitis IDE compatible component files and directory structure.\nResolution: For help on HLS 200-2182 see docs.amd.com/access/sources/dita/topic?Doc_Version=2025.2%20English&url=ug1448-hls-guidance&resourceid=200-2182.html\nINFO: [HLS 200-10] Creating and opening solution '/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj'.\nINFO: [HLS 200-1510] Running: add_files vecadd.cpp \nINFO: [HLS 200-10] Adding design file 'vecadd.cpp' to the project\nINFO: [HLS 200-1510] Running: open_solution sol -flow_target vivado \nINFO: [HLS 200-10] Creating and opening solution '/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol'.\nINFO: [HLS 200-1505] Using flow_target 'vivado'\nResolution: For help on HLS 200-1505 see docs.amd.com/access/sources/dita/topic?Doc_Version=2025.2%20English&url=ug1448-hls-guidance&resourceid=200-1505.html\nINFO: [HLS 200-1510] Running: set_top vecadd \nINFO: [HLS 200-1510] Running: set_part xcu55c-fsvh2892-2L-e \nINFO: [HLS 200-1611] Setting target device to 'xcu55c-fsvh2892-2L-e'\nINFO: [HLS 200-1510] Running: create_clock -period 5.0 -name clk_default \nINFO: [SYN 201-201] Setting up clock 'clk_default' with a period of 5ns.\nINFO: [HLS 200-1510] Running: config_compile -unsafe_math_optimizations \nINFO: [XFORM 203-1172] Optimizing floating point zeros and discarding its signedness.\nINFO: [XFORM 203-1176] Optimizing floating point comparison without checking NaN.\nINFO: [XFORM 203-1173] Reordering floating point operations aggressively.\nINFO: [HLS 200-1510] Running: csynth_design \nINFO: [HLS 200-111] Finished File checks and directory preparation: CPU user time: 0.09 seconds. CPU system time: 0.07 seconds. Elapsed time: 0.16 seconds; current allocated memory: 463.820 MB.\nINFO: [HLS 200-2191] C-Synthesis will use clang-16 as the compiler\nINFO: [HLS 200-10] Analyzing design file 'vecadd.cpp' ... \nWARNING: [HLS 207-7042] unroll pragma is ignored, because it can be only applied inside loop body  (vecadd.cpp:5:1)\nINFO: [HLS 200-111] Finished Source Code Analysis and Preprocessing: CPU user time: 0.36 seconds. CPU system time: 0.25 seconds. Elapsed time: 0.61 seconds; current allocated memory: 465.672 MB.\nINFO: [HLS 200-777] Using interface defaults for 'Vivado' flow target.\nINFO: [HLS 200-1995] There were 20 instructions in the design after the 'Compile/Link' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Unroll/Inline (step 1)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,670 instructions in the design after the 'Unroll/Inline (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,670 instructions in the design after the 'Unroll/Inline (step 3)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,670 instructions in the design after the 'Unroll/Inline (step 4)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 1)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 3)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 4)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Array/Struct (step 5)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance (step 3)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 28,673 instructions in the design after the 'Performance (step 4)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 40,967 instructions in the design after the 'HW Transforms' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 200-1995] There were 40,969 instructions in the design after the 'HW Transforms (step 2)' phase of compilation. See the Design Size Report for more details (/home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/agent/synth_8/synth_proj/sol/syn/report/csynth_design_size.rpt:2)\nINFO: [HLS 214-291] Loop 'VITIS_LOOP_6_1' is marked as complete unroll implied by the pipeline pragma (vecadd.cpp:6:21)\nINFO: [HLS 214-186] Unrolling loop 'VITIS_LOOP_6_1' (vecadd.cpp:6:21) in function 'vecadd' completely with a factor of 4096 (vecadd.cpp:3:0)\nINFO: [HLS 200-111] Finished Compiling Optimization and Transform: CPU user time: 98.25 seconds. CPU system time: 1.75 seconds. Elapsed time: 103.01 seconds; current allocated memory: 475.730 MB.\nINFO: [HLS 200-111] Finished Checking Pragmas: CPU user time: 0 seconds. CPU system time: 0 seconds. Elapsed time: 0 seconds; current allocated memory: 475.730 MB.\nINFO: [HLS 200-10] Starting code transformations ...\nINFO: [HLS 200-111] Finished Standard Transforms: CPU user time: 3.67 seconds. CPU system time: 0.03 seconds. Elapsed time: 3.69 seconds; current allocated memory: 547.027 MB.\nINFO: [HLS 200-10] Checking synthesizability ...\nINFO: [HLS 200-111] Finished Checking Synthesizability: CPU user time: 0.68 seconds. CPU system time: 0 seconds. Elapsed time: 0.68 seconds; current allocated memory: 548.672 MB.\nINFO: [HLS 200-111] Finished Loop, function and other optimizations: CPU user time: 15.79 seconds. CPU system time: 0.04 seconds. Elapsed time: 15.83 seconds; current allocated memory: 702.891 MB.\nINFO: [HLS 200-111] Finished Architecture Synthesis: CPU user time: 88.28 seconds. CPU system time: 2.24 seconds. Elapsed time: 90.53 seconds; current allocated memory: 4.900 GB.\nINFO: [HLS 200-10] Starting hardware synthesis ...\nINFO: [HLS 200-10] Synthesizing 'vecadd' ...\nINFO: [HLS 200-10] ----------------------------------------------------------------\nINFO: [HLS 200-42] -- Implementing module 'vecadd' \nINFO: [HLS 200-10] ----------------------------------------------------------------\nINFO: [SCHED 204-11] Starting scheduling ...\nINFO: [SCHED 204-61] Pipelining function 'vecadd'.\n\n"}
[log] optimize_repair {'round': 1, 'repair': 1, 'reason': 'synth_failed', 'phase': 'timeout'}
[log] kb_search {'query': ['[HLS 200-1510]', '[HLS 200-2182]', '[HLS 200-10]', '[HLS 200-1505]', '[HLS 200-1611]', '[XFORM 203-1172]', '[XFORM 203-1176]', '[XFORM 203-1173]', '[HLS 200-111]', '[HLS 200-2191]', '[HLS 207-7042]', '[HLS 200-777]', '[HLS 200-1995]', '[HLS 214-291]', '[HLS 214-186]', '[HLS 200-42]'], 'hits': 0, 'hit_ids': []}
[log] optimize_discard {'round': 1, 'reason': 'budget_exhausted'}
[log] optimize_stop {'reason': 'failed', 'best_latency': 4102}
[log] phase_exit {'phase': 'optimize', 'result': 'ok', 'best_level': 2, 'best_latency': 4102}
[log] submit {'final_level': 2, 'final_latency': 4102, 'credit_spent': 20}
=== Task vecadd_optimize [optimize, difficulty 1] ===
    budget: 20 credits | backend: deepseek

qwen3.6-27b 11 calls | prompt=9115 completion=28584 (reasoning=27489) total=37699

--- metered tool transcript ---
  #1  [csim] pass (rc=0, 6.9s)   [spent 1/20]
  #2  [synth] timeout (rc=-1, 600.1s)   [spent 5/20]
  #3  [csim] pass (rc=0, 6.9s)   [spent 6/20]
  #4  [synth] pass (rc=0, 15.5s) | latency(worst)=4102 cyc  II=4096  clk~2.976ns  LUT=330 FF=305 DSP=2 BRAM=0 URAM=0   [spent 10/20]
  #5  [csim] pass (rc=0, 6.9s)   [spent 11/20]
  #6  [synth] timeout (rc=-1, 600.1s)   [spent 15/20]
  #7  [csim] pass (rc=0, 6.9s)   [spent 16/20]
  #8  [synth] timeout (rc=-1, 600.0s)   [spent 20/20]
  budget 20/20 credits spent (csimx4, synthx4)

=== Grading (hidden testbench + PPA, uncharged) ===
=== Scorecard: vecadd_optimize (difficulty 1) ===
  functional (hidden TB): PASS
  synthesizable         : PASS
  baseline latency      : 4102 cyc
  candidate latency     : 4102 cyc
  acceleration          : 1.00x  (opt=False)
  candidate resources   : LUT=330 FF=305 DSP=2 BRAM=0
  SCORE                 : 0.738

recent scores (vecadd_optimize):
  2026-07-25 22:18  SCORE 0.738  lat=4102  credits=20  tokens=37699

final kernel -> /home/admin/fpga-agent/runs/qwen3.6-27b/vecadd_optimize/final_vecadd.cpp
