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2018-10-03Fix compiler warnings. (#2585)Aina Niemetz
2018-10-03Add actively generated sygus enumerators (#2552)Andrew Reynolds
2018-10-03Make CegisUnif with condition independent robust to var agnostic (#2565)Haniel Barbosa
2018-10-03Fix stale op list in sets (#2572)Andrew Reynolds
2018-10-03Eliminate partial operators within lambdas during grammar normalization (#2570)Andrew Reynolds
2018-10-01init scalar class members (coverity issues 1473720 and 1473721) (#2554)Haniel Barbosa
2018-10-01Fix compiler warnings. (#2555)Aina Niemetz
2018-09-30Add rewrite for solving stoi (#2532)Andrew Reynolds
2018-09-29Stream concrete values for variable agnostic enumerators (#2526)Haniel Barbosa
2018-09-28Rewrites for (= "" _) and (= (str.replace _) _) (#2546)Andres Noetzli
2018-09-27Remove assertion. (#2549)Andrew Reynolds
2018-09-27Infrastructure for using active enumerators in sygus modules (#2547)Andrew Reynolds
2018-09-27Incorporate all unification enumerators into getTermList. (#2541)Andrew Reynolds
2018-09-27Fix Taylor overapproximation for large exponentials (#2538)Andrew Reynolds
2018-09-26 Fix homogeneous string constant rewrite (#2545)Andrew Reynolds
2018-09-26Symmetry breaking for variable agnostic enumerators (#2527)Andrew Reynolds
2018-09-25Eagerly ensure literal on active guards for sygus enumerators (#2531)Andrew Reynolds
2018-09-25Fix warnings uncovered by cmake build (#2521)Andrew Reynolds
2018-09-24Fix quantifiers selector over store rewrite (#2510)Andrew Reynolds
Due an ordering on if's the rewrite sel( store( a, i, j ), k ) ---> ite( k=i, j, sel( a, k ) ) was very rarely kicking in. After the change, we are +61-7 on SMT LIB: https://www.starexec.org/starexec/secure/details/job.jsp?id=30581
2018-09-24Allow partial models for multiple sygus enumerators (#2499)Andrew Reynolds
2018-09-24Infrastructure for variable agnostic sygus enumerators (#2511)Andrew Reynolds
2018-09-24 Improve non-linear check model error handling (#2497)Andrew Reynolds
2018-09-24Refactor strings equality rewriting (#2513)Andrew Reynolds
This moves the extended rewrites for string equality to the main strings rewriter as a function rewriteEqualityExt, and makes this function called on every equality that is generated (from non-equalities) by our rewriter.
2018-09-24cmake: Fix dependencies for code generation. (#2524)Mathias Preiner
2018-09-24cmake: Fix theory order #2. (#2522)Mathias Preiner
2018-09-24Unify rewrites related to (str.contains x y) --> (= x y) (#2512)Andres Noetzli
2018-09-24cmake: Fix theory order. (#2518)Mathias Preiner
2018-09-22cmake: Only build libcvc4 and libcvc4parser as libraries.Mathias Preiner
The sources of all previous libraries are now added to libcvc4 and built as libcvc4. This removes circular dependencies between libcvc4 and libexpr. Further, we now only have one parser library and don't build additional libraries for each language.
2018-09-22cmake: Remove unused CMakeLists.txtMathias Preiner
2018-09-22cmake: Working build infrastructure.Mathias Preiner
TODO: cvc4autoconfig.h
2018-09-22cmake: .cpp generation done, .h generation not yet completeAina Niemetz
2018-09-22cmake: Added initial build infrastructure.Aina Niemetz
2018-09-19Decision strategy: incorporate arrays. (#2495)Andrew Reynolds
2018-09-19Add rewrites for str.contains + str.replace/substr (#2496)Andres Noetzli
2018-09-18Decision strategy: incorporate separation logic. (#2494)Andrew Reynolds
2018-09-18Add two rewrites for string contains character (#2492)Andrew Reynolds
2018-09-18 Refactor strings extended functions inferences (#2480)Andrew Reynolds
This refactors the extended function inference step of TheoryStrings. It also generalizes a data member (d_pol) so that we track extended functions that are equal to constants for any type. This is in preparation for working on solving equations and further inferences in this style.
2018-09-18Fix issue with str.idof in evaluator (#2493)Andres Noetzli
2018-09-18Decision strategy: incorporate strings fmf. (#2485)Andrew Reynolds
2018-09-18More aggressive caching of string skolems. (#2491)Andrew Reynolds
2018-09-18Move and rename sygus solver classes (#2488)Andrew Reynolds
2018-09-17Clean remaining references to getNextDecisionRequest in quantifiers. (#2484)Andrew Reynolds
2018-09-17Improvements and fixes for symmetry detection and breaking (#2459)Andrew Reynolds
This fixes a few open issues with symmetry detection algorithm. It also extends the algorithm to do: - Alpha equivalence to recognize symmetries between quantified formulas, - A technique to recognize a subset of variables in two terms are symmetric, e.g. from x in A ^ x in B, we find A and B are interchangeable by treating x as a fixed symbol, - Symmetry breaking for maximal subterms instead of variables.
2018-09-17Move inst_strategy_cbqi to inst_strategy_cegqi (#2477)Andrew Reynolds
2018-09-17Decision strategy: incorporate cegis unif (#2482)Andrew Reynolds
2018-09-17 Decision strategy: incorporate bounded integers (#2481)Andrew Reynolds
2018-09-17Decision strategy: incorporate datatypes sygus solver. (#2479)Andrew Reynolds
2018-09-17More aggressive skolem caching for strings, document and clean preprocessor ↵Andrew Reynolds
(#2478)
2018-09-17Make strings model construction robust to lengths that are not propagated ↵Andrew Reynolds
equal (#2444) This fixes #2429. This was caused by arithmetic not notifying an equality between shared terms that it assigned to the same value. See explanation in comment. We should investigate a bit more why this is happening. I didnt think arithmetic was allowed to assign the same value to unpropagated shared length terms. I've opened issue https://github.com/CVC4/CVC4/issues/2443 to track this. Regardless, the strings model construction should be robust to handle this case, which this PR does.
2018-09-17Decision strategy: incorporate UF with cardinality constraints (#2476)Andrew Reynolds
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