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Logging facility for spacer plus minor improvements (#3368)

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* [spacer] logging solver events

New option fp.spacer.trace_file='file.log' enables logging solving events
into a file.

These events are useful for debugging the solver, but also for visualizing
the solving process in a variety of ways

* [spacer] allow setting logic for solvers used by spacer

* [spacer] option to set arithmetic solver explicitly

* [spacer] improve of dumping solver_pool state for debugging

* fix propagate_ineqs to handle strict inequality

Co-authored-by: Nham Van Le <nv3le@precious3.eng.uwaterloo.ca>
This commit is contained in:
Arie Gurfinkel 2020-03-16 23:31:44 -04:00 • committed by GitHub
parent f06deca7e0
commit 6180a5276d
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5 changed files with 143 additions and 58 deletions
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4
src/muz/base/fp_params.pyg
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@ -172,6 +172,7 @@ def_module_params('fp',
('spacer.p3.share_invariants', BOOL, False, "Share invariants lemmas"),
('spacer.min_level', UINT, 0, 'Minimal level to explore'),
('spacer.print_json', SYMBOL, '', 'Print pobs tree in JSON format to a given file'),
('spacer.trace_file', SYMBOL, '', 'Log file for progress events'),
('spacer.ctp', BOOL, True, 'Enable counterexample-to-pushing'),
('spacer.use_inc_clause', BOOL, True, 'Use incremental clause to represent trans'),
('spacer.dump_benchmarks', BOOL, False, 'Dump SMT queries as benchmarks'),
@ -180,5 +181,6 @@ def_module_params('fp',
('spacer.gpdr.bfs', BOOL, True, 'Use BFS exploration strategy for expanding model search'),
('spacer.use_bg_invs', BOOL, False, 'Enable external background invariants'),
('spacer.use_lim_num_gen', BOOL, False, 'Enable limit numbers generalizer to get smaller numbers'),
('spacer.logic', SYMBOL, '', 'SMT-LIB logic to configure internal SMT solvers'),
('spacer.arith.solver', UINT, 2, 'arithmetic solver: 0 - no solver, 1 - bellman-ford based solver (diff. logic only), 2 - simplex based solver, 3 - floyd-warshall based solver (diff. logic only) and no theory combination 4 - utvpi, 5 - infinitary lra, 6 - lra solver'),
))