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infer_clone/infer/tests/codetoanalyze/java/performance/issues.exp

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[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/A.java, B$BArray.error():void, 4, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost 4, O(1), degree = 0]
codetoanalyze/java/performance/A.java, B.error():void, 4, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost 4, O(1), degree = 0]
[cost][inferbo] Add models for androidx.collection Summary: - Model them like pseudo_collections. - Need to add androidx.collection jar file from [here](https://mvnrepository.com/artifact/androidx.collection/collection/1.1.0) for tests. - Add tests. Reviewed By: skcho Differential Revision: D17831346 fbshipit-source-id: a059531fb
5 years ago
codetoanalyze/java/performance/AndroidXCollectionTest.java, AndroidXCollectionTest.iterate_over_sparsearraycompat_linear(androidx.collection.SparseArrayCompat):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 5 ⋅ sa.length, O(sa.length), degree = 1,{sa.length},Loop at line 12]
[inferbo,cost] Fix java arrays Reviewed By: mbouaziz, ddino Differential Revision: D15602327 fbshipit-source-id: d17253a15
6 years ago
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.array_access_overrun_bad():void, 4, BUFFER_OVERRUN_L2, no_bucket, ERROR, [<Offset trace>,Assignment,<Length trace>,Array declaration,Array access: Offset: [2, 8] Size: 8]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.array_access_weird_ok(long[],int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 13 ⋅ length, O(length), degree = 1,{length},Loop at line 30]
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.binary_search_log(java.lang.String[]):int, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + log(arr.length), O(log(arr.length)), degree = 0 + 1⋅log,{arr.length},Modeled call to Arrays.binarySearch]
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.bsearch_log(int):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + log(i), O(log(i)), degree = 0 + 1⋅log,{i},Modeled call to Arrays.binarySearch]
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.call_gen_and_iter_types(int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 13 + 5 ⋅ x, O(x), degree = 1,{x},call to java.lang.String[] Array.gen_and_iter_types(int),Loop at line 76]
[inferbo] Weak update on array contents Summary: The `represents_multiple_values` flag was adopted to decide whether updating abstract value strongly or weakly. However, the flag was included in the `Val` domain, which is strange, because it is a property of abstract locations, rather than abstract values. This makes the behavior of memory update function depend on the abstract value to update, making its code complicated. This diff detach the `represents_multiple_values` flag from the `Value` domain, thus the memory update does not depend on the abstract value. Since this is a refactoring, I believe the diff should not make many semantic changes. Reviewed By: ezgicicek Differential Revision: D16441734 fbshipit-source-id: 4c10779d7
5 years ago
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.call_gen_and_iter_types_linear_FP(int,int):void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded loop,Loop at line 88]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.call_gen_and_iter_types_linear_FP(int,int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 13 + 5 ⋅ x, O(x), degree = 1,{x},call to java.lang.String[] Array.gen_and_iter_types(int),Loop at line 76]
[inferbo] Weak update on array contents Summary: The `represents_multiple_values` flag was adopted to decide whether updating abstract value strongly or weakly. However, the flag was included in the `Val` domain, which is strange, because it is a property of abstract locations, rather than abstract values. This makes the behavior of memory update function depend on the abstract value to update, making its code complicated. This diff detach the `represents_multiple_values` flag from the `Value` domain, thus the memory update does not depend on the abstract value. Since this is a refactoring, I believe the diff should not make many semantic changes. Reviewed By: ezgicicek Differential Revision: D16441734 fbshipit-source-id: 4c10779d7
5 years ago
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.call_gen_and_iter_types_linear_FP(int,int):void, 3, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 1):signed32]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.copyOf_linear(java.lang.String[]):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + arr.length, O(arr.length), degree = 1,{arr.length},Modeled call to Arrays.copyOf]
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.fill_big_constant():void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 307, O(1), degree = 0]
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.fill_linear(java.lang.String[]):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + arr.length, O(arr.length), degree = 1,{arr.length},Modeled call to Arrays.fill]
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.gen_and_iter_types(int):java.lang.String[], 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 5 ⋅ length, O(length), degree = 1,{length},Loop at line 76]
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.init_array_linear():void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2564, O(1), degree = 0]
codetoanalyze/java/performance/Array.java, codetoanalyze.java.performance.Array.sort_array_nlogn(int):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + size × log(size), O(size × log(size)), degree = 1 + 1⋅log,{size},Modeled call to Arrays.sort,{size},Modeled call to Arrays.sort]
codetoanalyze/java/performance/ArrayCost.java, ArrayCost.ArrayCost(int[]):void, 5, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 5 ⋅ mag.length, O(mag.length), degree = 1,{mag.length},Loop at line 15]
codetoanalyze/java/performance/ArrayCost.java, ArrayCost.isPowOfTwo_FP(int):boolean, 4, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 883, O(1), degree = 0]
[inferbo] Model Java collections using arrays Reviewed By: ezgicicek, skcho Differential Revision: D13190960 fbshipit-source-id: fba435f34
6 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_add3_overrun_bad():void, 5, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Through,Through,Through,Array access: Offset added: 4 Size: 3]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_addAll_bad():void, 10, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Through,Through,Through,Array access: Offset added: 5 Size: 4]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_empty_overrun_bad():void, 2, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Array access: Offset added: 1 Size: 0]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_empty_underrun_bad():void, 2, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Array access: Offset added: -1 Size: 0]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_get_overrun_bad():void, 3, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Through,Array access: Offset: 2 Size: 1]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_get_underrun_bad():void, 2, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Array access: Offset: 0 Size: 0]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_remove_bad():void, 5, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Through,Through,Through,Array access: Offset: 1 Size: 1]
[infer] Eagerly try narrowing for the outermost loops Summary: This diff tries to narrowing the fixpoint of outermost loops, so that over-approximated widened values do not flow to the following code. Problem: There are two phases for finding a fixpoint, widening and narrowing. First, it finds a fixpoint with widening, in function level. After that, it finds a fixpoint with narrowing. A problem is that sometimes an overly-approximated, imprecise, values by widening are flowed to the following loops. They are hard to narrow in the narrowing phase because there is a cycle preventing it. To mitigate the problem, it tries to do narrowing, in loop level, right after it found a fixpoint of a loop. Thus, it narrows before the widened values are flowed to the following loops. In order to guarantee the termination of the analysis, this eager narrowing is applied only to the outermost loops. Reviewed By: ezgicicek Differential Revision: D17740265 fbshipit-source-id: e2d454036
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_remove_in_loop_Good():void, 5, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 211, O(1), degree = 0]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_remove_in_loop_Good():void, 6, BUFFER_OVERRUN_L5, no_bucket, ERROR, [<Offset trace>,Assignment,<Length trace>,Array declaration,Array access: Offset: [0, 9] Size: [0, 10]]
[inferbo] Model Java collections using arrays Reviewed By: ezgicicek, skcho Differential Revision: D13190960 fbshipit-source-id: fba435f34
6 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_remove_overrun_bad():void, 3, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Through,Array access: Offset: 1 Size: 1]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_set_overrun_bad():void, 3, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Through,Array access: Offset: 1 Size: 1]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.arraylist_set_underrun_bad():void, 2, BUFFER_OVERRUN_L1, no_bucket, ERROR, [<Length trace>,Array declaration,Array access: Offset: 0 Size: 0]
[inferbo] Forget size alias when size changed in model Summary: It should forget size aliases if the size is changed. Reviewed By: ezgicicek Differential Revision: D18083697 fbshipit-source-id: 8b97e0676
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.boolean_control_var_linear():void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 19 ⋅ this.arr.length + 4 ⋅ (this.arr.length + 1), O(this.arr.length), degree = 1,{this.arr.length + 1},Loop at line 290,{this.arr.length},Loop at line 290]
[inferbo] Extend alias domain to have multiple aliases on a variable Summary: This diff extends the alias domain, so each variable can have multiple aliases. It changed `KeyLhs` can be mapped to multiple alias targets in the `AliasMap` domain: ``` before : KeyLhs.t -> KeyRhs.t * AliasTarget.t after : KeyLhs.t -> KeyRhs.t -> AliasTarget.t ``` Reviewed By: ezgicicek Differential Revision: D18062178 fbshipit-source-id: b325a6055
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.call_init_with_put_linear(java.util.ArrayList):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 13 + 13 ⋅ a.length + 3 ⋅ (a.length + 1), O(a.length), degree = 1,{a.length + 1},call to HashMap ArrayListTest.init_with_put_linear(ArrayList),Loop at line 299,{a.length},call to HashMap ArrayListTest.init_with_put_linear(ArrayList),Loop at line 299]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.call_sortArrayList(java.util.ArrayList):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + list.length × log(list.length), O(list.length × log(list.length)), degree = 1 + 1⋅log,{list.length},call to void ArrayListTest.sortArrayList(ArrayList),Modeled call to Collections.sort,{list.length},call to void ArrayListTest.sortArrayList(ArrayList),Modeled call to Collections.sort]
[inferbo] Forget size alias when size changed in model Summary: It should forget size aliases if the size is changed. Reviewed By: ezgicicek Differential Revision: D18083697 fbshipit-source-id: 8b97e0676
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.constructor_add_all(java.util.ArrayList,java.util.ArrayList):void, 4, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 10 + 5 ⋅ (l.length + list.length) + 3 ⋅ (l.length + list.length + 1), O((l.length + list.length)), degree = 1,{l.length + list.length + 1},Loop at line 240,{l.length + list.length},Loop at line 240]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.constructor_add_all_sym(java.util.ArrayList,java.util.ArrayList):void, 4, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 10 + 5 ⋅ (l.length + list.length) + 3 ⋅ (l.length + list.length + 1), O((l.length + list.length)), degree = 1,{l.length + list.length + 1},Loop at line 247,{l.length + list.length},Loop at line 247]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.constructor_linear(java.util.ArrayList):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 6 + 5 ⋅ list.length + 3 ⋅ (list.length + 1), O(list.length), degree = 1,{list.length + 1},Loop at line 222,{list.length},Loop at line 222]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.constructor_modify(java.util.ArrayList):void, 8, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 18 + 5 ⋅ (list.length + 4) + 3 ⋅ (list.length + 5), O(list.length), degree = 1,{list.length + 5},Loop at line 233,{list.length + 4},Loop at line 233]
[inferbo] Add missing list initialization with initial capacity Summary: Correct the models of ArrayList initialization. Basically, there are two ways to initialize: - by setting an initial capacity, which creates an empty list - by passing another collection as an argument Before, we had only modeled the second case which was resulting in wrong memory model for the first case. This diff fixes that. Reviewed By: skcho Differential Revision: D16711055 fbshipit-source-id: e82faf191
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.empty_list_constant(int):void, 3, CONDITION_ALWAYS_FALSE, no_bucket, WARNING, [Here]
[inferbo] Extend alias domain to have multiple aliases on a variable Summary: This diff extends the alias domain, so each variable can have multiple aliases. It changed `KeyLhs` can be mapped to multiple alias targets in the `AliasMap` domain: ``` before : KeyLhs.t -> KeyRhs.t * AliasTarget.t after : KeyLhs.t -> KeyRhs.t -> AliasTarget.t ``` Reviewed By: ezgicicek Differential Revision: D18062178 fbshipit-source-id: b325a6055
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.init_with_put_linear(java.util.ArrayList):java.util.HashMap, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 7 + 13 ⋅ a.length + 3 ⋅ (a.length + 1), O(a.length), degree = 1,{a.length + 1},Loop at line 299,{a.length},Loop at line 299]
[inferbo] Forget size alias when size changed in model Summary: It should forget size aliases if the size is changed. Reviewed By: ezgicicek Differential Revision: D18083697 fbshipit-source-id: 8b97e0676
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.iterate_over_arraylist(java.util.ArrayList):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 5 ⋅ list.length, O(list.length), degree = 1,{list.length},Loop at line 15]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.iterate_over_arraylist_shortcut_FP(java.util.ArrayList):boolean, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 11 ⋅ list.length + 2 ⋅ list.length × (11-max(10, list.elements)) + 3 ⋅ (list.length + 1) × (11-max(10, list.elements)), O(list.length × (-list.elements + 11)), degree = 2,{11-max(10, list.elements)},Loop at line 188,{list.length + 1},Loop at line 188,{11-max(10, list.elements)},Loop at line 188,{list.length},Loop at line 188]
[inferbo] Extend alias domain to have multiple aliases on a variable Summary: This diff extends the alias domain, so each variable can have multiple aliases. It changed `KeyLhs` can be mapped to multiple alias targets in the `AliasMap` domain: ``` before : KeyLhs.t -> KeyRhs.t * AliasTarget.t after : KeyLhs.t -> KeyRhs.t -> AliasTarget.t ``` Reviewed By: ezgicicek Differential Revision: D18062178 fbshipit-source-id: b325a6055
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.iterate_over_arraylist_with_inner(java.util.ArrayList):void, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 7 + 11 ⋅ list1.length + 3 ⋅ (list1.length + 1), O(list1.length), degree = 1,{list1.length + 1},Loop at line 179,{list1.length},Loop at line 179]
[inferbo] Forget size alias when size changed in model Summary: It should forget size aliases if the size is changed. Reviewed By: ezgicicek Differential Revision: D18083697 fbshipit-source-id: 8b97e0676
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.iterate_over_local_arraylist(java.util.ArrayList):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 7 + 5 ⋅ list.length, O(list.length), degree = 1,{list.length},Loop at line 20]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.iterate_while_has_next(java.util.ArrayList):void, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 10 ⋅ list.length + 3 ⋅ (list.length + 1), O(list.length), degree = 1,{list.length + 1},Loop at line 171,{list.length},Loop at line 171]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.iterate_with_iterator(java.util.ArrayList):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 8 ⋅ list.length + 3 ⋅ (list.length + 1), O(list.length), degree = 1,{list.length + 1},Loop at line 165,{list.length},Loop at line 165]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.json_array_constructor_linear(java.util.ArrayList):void, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 6 + 5 ⋅ arr.length + 3 ⋅ (arr.length + 1), O(arr.length), degree = 1,{arr.length + 1},Loop at line 267,{arr.length},Loop at line 267]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.linear(int,java.util.ArrayList):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 9 ⋅ (-i + a.length + 1), O((-i + a.length)), degree = 1,{-i + a.length + 1},Loop at line 274]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.max_linear(java.util.ArrayList):Person, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 8 + people.length, O(people.length), degree = 1,{people.length},Modeled call to Collections.max]
[inferbo] Forget size alias when size changed in model Summary: It should forget size aliases if the size is changed. Reviewed By: ezgicicek Differential Revision: D18083697 fbshipit-source-id: 8b97e0676
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.remove_string_from_list(java.lang.String):boolean, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 12 ⋅ this.list.length + 3 ⋅ (this.list.length + 1), O(this.list.length), degree = 1,{this.list.length + 1},Loop at line 211,{this.list.length},Loop at line 211]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.sortArrayList(java.util.ArrayList):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + list.length × log(list.length), O(list.length × log(list.length)), degree = 1 + 1⋅log,{list.length},Modeled call to Collections.sort,{list.length},Modeled call to Collections.sort]
codetoanalyze/java/performance/ArrayListTest.java, ArrayListTest.sort_comparator_nlogn(java.util.ArrayList):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 8 + people.length × log(people.length), O(people.length × log(people.length)), degree = 1 + 1⋅log,{people.length},Modeled call to Collections.sort,{people.length},Modeled call to Collections.sort]
codetoanalyze/java/performance/Break.java, codetoanalyze.java.performance.Break.break_constant(int):int, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 10 + 7 ⋅ p, O(p), degree = 1,{p},call to int Break.break_loop(int,int),Loop at line 12]
codetoanalyze/java/performance/Break.java, codetoanalyze.java.performance.Break.break_loop(int,int):int, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 7 ⋅ p, O(p), degree = 1,{p},Loop at line 12]
[cost] Mask min/max symbols when printing big O Summary: We want to keep big O notation as simple as possible in cost analysis reports (especially in diff time). Therefore, let's not show constants/min/max in big O notations even though the resulting asymptotic bound might be inaccurate. Developers can click on the trace and see the actual cost. Reviewed By: skcho Differential Revision: D16731351 fbshipit-source-id: 2e16f7eca
5 years ago
codetoanalyze/java/performance/Break.java, codetoanalyze.java.performance.Break.break_outer_loop_MaybeInfinite(int,int):void, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 4 ⋅ maxI + 3 ⋅ maxI × (min(12, maxJ)) + 5 ⋅ maxI × (12-max(0, maxJ)) + 5 ⋅ (min(11, maxI)) × (min(11, maxJ)), O(maxI × maxJ), degree = 2,{min(11, maxJ)},Loop at line 37,{min(11, maxI)},Loop at line 35,{12-max(0, maxJ)},Loop at line 35,{min(12, maxJ)},Loop at line 37,{maxI},Loop at line 35]
[cost] Refactor cost issue types and enable detecting allocation complexity increase on cold start Summary: - Add allocation costs to `costs-report.json` and enable diffing over allocation costs. - Also, let's be more consistent and modular in naming our cost issues. - introduce a generic issue type `X_TIME_COMPLEXITY_INCREASE` where `X` can be one of the cost kinds. If the function is on the cold start, issue can have the `COLD_START` suffix. Similarly for infinite/zero/expensive calls. - Change `PERFORMANCE_VARIATION` -> `EXECUTION_TIME_COMPLEXITY_INCREASE` - Add new issue type for `ALLOCATION_COMPLEXITY_INCREASE_COLD_START` which will be enabled by default - Refactor cost issues to be more modular and succinct. This also makes addition of a new cost kind very easy by adding the kind into the `enabled_cost_kinds` list in `CostKind.ml` Reviewed By: mbouaziz Differential Revision: D15822681 fbshipit-source-id: cf89ece59
6 years ago
codetoanalyze/java/performance/CantHandle.java, CantHandle.quadratic_FP(int):void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded loop,Loop at line 31]
[cost] Add examples that we can't handle currently Reviewed By: mbouaziz, jvillard Differential Revision: D13596579 fbshipit-source-id: 7460d430d
6 years ago
codetoanalyze/java/performance/CantHandle.java, CantHandle.quadratic_FP(int):void, 1, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Parameter `x`,<RHS trace>,Parameter `x`,Binary operation: (x × x):signed32]
[inferbo] Extract abstract domain functor for 'set represented by its smallest element' Reviewed By: skcho Differential Revision: D14243106 fbshipit-source-id: 900fbad3b
6 years ago
codetoanalyze/java/performance/CantHandle.java, CantHandle.quadratic_FP(int):void, 1, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Parameter `x`,Binary operation: ([0, +oo] + 1):signed32]
[cost] Refactor cost issue types and enable detecting allocation complexity increase on cold start Summary: - Add allocation costs to `costs-report.json` and enable diffing over allocation costs. - Also, let's be more consistent and modular in naming our cost issues. - introduce a generic issue type `X_TIME_COMPLEXITY_INCREASE` where `X` can be one of the cost kinds. If the function is on the cold start, issue can have the `COLD_START` suffix. Similarly for infinite/zero/expensive calls. - Change `PERFORMANCE_VARIATION` -> `EXECUTION_TIME_COMPLEXITY_INCREASE` - Add new issue type for `ALLOCATION_COMPLEXITY_INCREASE_COLD_START` which will be enabled by default - Refactor cost issues to be more modular and succinct. This also makes addition of a new cost kind very easy by adding the kind into the `enabled_cost_kinds` list in `CostKind.ml` Reviewed By: mbouaziz Differential Revision: D15822681 fbshipit-source-id: cf89ece59
6 years ago
codetoanalyze/java/performance/CantHandle.java, CantHandle.square_root_FP(int):void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded loop,Loop at line 17]
[cost] Add examples that we can't handle currently Reviewed By: mbouaziz, jvillard Differential Revision: D13596579 fbshipit-source-id: 7460d430d
6 years ago
codetoanalyze/java/performance/CantHandle.java, CantHandle.square_root_FP(int):void, 2, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,<RHS trace>,Assignment,Binary operation: ([0, +oo] × [0, +oo]):signed32]
codetoanalyze/java/performance/CantHandle.java, CantHandle.square_root_FP(int):void, 3, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 1):signed32]
[cost] Refactor cost issue types and enable detecting allocation complexity increase on cold start Summary: - Add allocation costs to `costs-report.json` and enable diffing over allocation costs. - Also, let's be more consistent and modular in naming our cost issues. - introduce a generic issue type `X_TIME_COMPLEXITY_INCREASE` where `X` can be one of the cost kinds. If the function is on the cold start, issue can have the `COLD_START` suffix. Similarly for infinite/zero/expensive calls. - Change `PERFORMANCE_VARIATION` -> `EXECUTION_TIME_COMPLEXITY_INCREASE` - Add new issue type for `ALLOCATION_COMPLEXITY_INCREASE_COLD_START` which will be enabled by default - Refactor cost issues to be more modular and succinct. This also makes addition of a new cost kind very easy by adding the kind into the `enabled_cost_kinds` list in `CostKind.ml` Reviewed By: mbouaziz Differential Revision: D15822681 fbshipit-source-id: cf89ece59
6 years ago
codetoanalyze/java/performance/CantHandle.java, CantHandle.square_root_variant_FP(int):void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded loop,Loop at line 25]
[inferbo] Extract abstract domain functor for 'set represented by its smallest element' Reviewed By: skcho Differential Revision: D14243106 fbshipit-source-id: 900fbad3b
6 years ago
codetoanalyze/java/performance/CantHandle.java, CantHandle.square_root_variant_FP(int):void, 3, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Parameter `x`,Binary operation: ([0, +oo] + 1):signed32]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/CollectionTest.java, CollectionTest.ensure_call(CollectionTest$MyCollection):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 11 + 5 ⋅ list.length, O(list.length), degree = 1,{list.length},call to void CollectionTest.iterate_over_mycollection(CollectionTest$MyCollection),Loop at line 17]
[cost] Revise hasNext() to avoid bottom in condition Summary: Before this diff it returned `[0,size-1]`, but which became bottom when size was given by 0. As a result, it made the both branches of `if(iterator.hasNext())` unreachable. Similarly, if the size was 1, it only visited the false branch of the if condition because the condition value was `[0,0]` at that time. This diff changes it to return `[0,size]`, so that * the false branch is reachable when the size is 0 * the both branches are reachable when the size is 1 Reviewed By: ezgicicek Differential Revision: D16803000 fbshipit-source-id: f8772be27
5 years ago
codetoanalyze/java/performance/CollectionTest.java, CollectionTest.iterate_over_call_quad(int,CollectionTest$MyCollection):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 18 ⋅ list.length + 5 ⋅ list.length × list.length + 3 ⋅ (list.length + 1), O(list.length × list.length), degree = 2,{list.length + 1},Loop at line 48,{list.length},call to void CollectionTest.iterate_over_mycollection(CollectionTest$MyCollection),Loop at line 17,{list.length},Loop at line 48]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/CollectionTest.java, CollectionTest.iterate_over_mycollection(CollectionTest$MyCollection):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 5 ⋅ list.length, O(list.length), degree = 1,{list.length},Loop at line 17]
[cost] Print elements field of collection Summary: It prints elements field of collection. Reviewed By: ezgicicek Differential Revision: D16890972 fbshipit-source-id: 18bdeda54
5 years ago
codetoanalyze/java/performance/CollectionTest.java, CollectionTest.iterate_over_mycollection_quad_FN(java.util.concurrent.ConcurrentLinkedQueue):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 18 ⋅ mSubscribers.length + 5 ⋅ mSubscribers.length × mSubscribers.elements.*.length.ub + 3 ⋅ (mSubscribers.length + 1), O(mSubscribers.length × mSubscribers.elements.*.length.ub), degree = 2,{mSubscribers.length + 1},Loop at line 29,{mSubscribers.elements.*.length.ub},call to void CollectionTest.iterate_over_mycollection(CollectionTest$MyCollection),Loop at line 17,{mSubscribers.length},Loop at line 29]
[cost] Revise hasNext() to avoid bottom in condition Summary: Before this diff it returned `[0,size-1]`, but which became bottom when size was given by 0. As a result, it made the both branches of `if(iterator.hasNext())` unreachable. Similarly, if the size was 1, it only visited the false branch of the if condition because the condition value was `[0,0]` at that time. This diff changes it to return `[0,size]`, so that * the false branch is reachable when the size is 0 * the both branches are reachable when the size is 1 Reviewed By: ezgicicek Differential Revision: D16803000 fbshipit-source-id: f8772be27
5 years ago
codetoanalyze/java/performance/CollectionTest.java, CollectionTest.iterate_over_some_java_collection(java.util.concurrent.ConcurrentLinkedQueue):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 8 ⋅ mSubscribers.length + 3 ⋅ (mSubscribers.length + 1), O(mSubscribers.length), degree = 1,{mSubscribers.length + 1},Loop at line 22,{mSubscribers.length},Loop at line 22]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/CollectionTest.java, CollectionTest.loop_over_call(int,CollectionTest$MyCollection):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 15 ⋅ size + 5 ⋅ size × list.length, O(size × list.length), degree = 2,{list.length},call to void CollectionTest.iterate_over_mycollection(CollectionTest$MyCollection),Loop at line 17,{size},Loop at line 41]
[cost] Revise hasNext() to avoid bottom in condition Summary: Before this diff it returned `[0,size-1]`, but which became bottom when size was given by 0. As a result, it made the both branches of `if(iterator.hasNext())` unreachable. Similarly, if the size was 1, it only visited the false branch of the if condition because the condition value was `[0,0]` at that time. This diff changes it to return `[0,size]`, so that * the false branch is reachable when the size is 0 * the both branches are reachable when the size is 1 Reviewed By: ezgicicek Differential Revision: D16803000 fbshipit-source-id: f8772be27
5 years ago
codetoanalyze/java/performance/CollectionTest.java, CollectionTest.nested_iterator_qubic(int,CollectionTest$MyCollection,CollectionTest$MyCollection):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 13 ⋅ list1.length + 5 ⋅ list1.length × list1.length × list2.length + 5 ⋅ list1.length × list1.length × list2.length + 28 ⋅ list1.length × list2.length + 3 ⋅ list1.length × (list2.length + 1) + 3 ⋅ (list1.length + 1), O(list1.length × list1.length × list2.length), degree = 3,{list1.length + 1},Loop at line 55,{list2.length + 1},Loop at line 56,{list2.length},Loop at line 56,{list2.length},Loop at line 56,{list1.length},call to void CollectionTest.iterate_over_mycollection(CollectionTest$MyCollection),Loop at line 17,{list2.length},Loop at line 56,{list1.length},call to void CollectionTest.iterate_over_mycollection(CollectionTest$MyCollection),Loop at line 17,{list1.length},Loop at line 55]
[cost] Mask min/max symbols when printing big O Summary: We want to keep big O notation as simple as possible in cost analysis reports (especially in diff time). Therefore, let's not show constants/min/max in big O notations even though the resulting asymptotic bound might be inaccurate. Developers can click on the trace and see the actual cost. Reviewed By: skcho Differential Revision: D16731351 fbshipit-source-id: 2e16f7eca
5 years ago
codetoanalyze/java/performance/CollectionTest.java, CollectionTest.sparse_array_linear(android.util.SparseArray):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ arr.length + 3 ⋅ (arr.length + 1), O(arr.length), degree = 1,{arr.length + 1},Loop at line 64,{arr.length},Loop at line 64]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/CollectionsTest.java, CollectionsTest.binary_search_log(java.util.List):int, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + log(list.length), O(log(list.length)), degree = 0 + 1⋅log,{list.length},Modeled call to Collections.binarySearch]
codetoanalyze/java/performance/CollectionsTest.java, CollectionsTest.copy_linear(java.util.List,java.util.List):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 3 + list_to.length, O(list_to.length), degree = 1,{list_to.length},Modeled call to Collections.copy]
[inferbo] Fix the model of Collections.emptySet Summary: Models of Java's Collection mistakenly assumed that there was an argument for empty set whereas `Collections.emptySet()` doesn't have any actuals. This diff fixes that an also removes the type argument from the corresponding model definition. Reviewed By: skcho Differential Revision: D16582314 fbshipit-source-id: d4304dc60
5 years ago
codetoanalyze/java/performance/CollectionsTest.java, CollectionsTest.emptySet_zero():void, 2, CONDITION_ALWAYS_FALSE, no_bucket, WARNING, [Here]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/CollectionsTest.java, CollectionsTest.fill_linear(java.util.List,java.lang.String):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 3 + list.length, O(list.length), degree = 1,{list.length},Modeled call to Collections.fill]
codetoanalyze/java/performance/CollectionsTest.java, CollectionsTest.reverse_linear(java.util.List):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + list.length, O(list.length), degree = 1,{list.length},Modeled call to Collections.reverse]
codetoanalyze/java/performance/CollectionsTest.java, CollectionsTest.shuffle_linear(java.util.List,java.util.Random):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 3 + list.length, O(list.length), degree = 1,{list.length},Modeled call to Collections.shuffle]
[cost] Mask min/max symbols when printing big O Summary: We want to keep big O notation as simple as possible in cost analysis reports (especially in diff time). Therefore, let's not show constants/min/max in big O notations even though the resulting asymptotic bound might be inaccurate. Developers can click on the trace and see the actual cost. Reviewed By: skcho Differential Revision: D16731351 fbshipit-source-id: 2e16f7eca
5 years ago
codetoanalyze/java/performance/CollectionsTest.java, CollectionsTest.unmodifiable_linear(java.util.List):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 5 ⋅ list.length + 3 ⋅ (list.length + 1), O(list.length), degree = 1,{list.length + 1},Loop at line 53,{list.length},Loop at line 53]
[cost] Revise hasNext() to avoid bottom in condition Summary: Before this diff it returned `[0,size-1]`, but which became bottom when size was given by 0. As a result, it made the both branches of `if(iterator.hasNext())` unreachable. Similarly, if the size was 1, it only visited the false branch of the if condition because the condition value was `[0,0]` at that time. This diff changes it to return `[0,size]`, so that * the false branch is reachable when the size is 0 * the both branches are reachable when the size is 1 Reviewed By: ezgicicek Differential Revision: D16803000 fbshipit-source-id: f8772be27
5 years ago
codetoanalyze/java/performance/CollectionsTest.java, CollectionsTest.unmodifiable_map(java.util.Map):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 10 + 8 ⋅ map.length + 3 ⋅ (map.length + 1), O(map.length), degree = 1,{map.length + 1},Loop at line 57,{map.length},Loop at line 57]
codetoanalyze/java/performance/CollectionsTest.java, CollectionsTest.unmodifiable_set(java.util.Set):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 7 + 8 ⋅ set.length + 3 ⋅ (set.length + 1), O(set.length), degree = 1,{set.length + 1},Loop at line 61,{set.length},Loop at line 61]
[inferbo] Add traces to Conditions always true/false and Unreachable code Reviewed By: ezgicicek Differential Revision: D13082665 fbshipit-source-id: bb0e4cbf3
6 years ago
codetoanalyze/java/performance/Compound_loop.java, codetoanalyze.java.performance.Compound_loop.compound_while(int):int, 3, CONDITION_ALWAYS_TRUE, no_bucket, WARNING, [Here]
[cost] Mask min/max symbols when printing big O Summary: We want to keep big O notation as simple as possible in cost analysis reports (especially in diff time). Therefore, let's not show constants/min/max in big O notations even though the resulting asymptotic bound might be inaccurate. Developers can click on the trace and see the actual cost. Reviewed By: skcho Differential Revision: D16731351 fbshipit-source-id: 2e16f7eca
5 years ago
codetoanalyze/java/performance/Compound_loop.java, codetoanalyze.java.performance.Compound_loop.compound_while(int):int, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 5 ⋅ m + 2 ⋅ (1+max(0, m)), O(m), degree = 1,{1+max(0, m)},Loop at line 15,{m},Loop at line 15]
[inferbo] Add traces to Conditions always true/false and Unreachable code Reviewed By: ezgicicek Differential Revision: D13082665 fbshipit-source-id: bb0e4cbf3
6 years ago
codetoanalyze/java/performance/Compound_loop.java, codetoanalyze.java.performance.Compound_loop.nested_while_and_or(int):int, 3, CONDITION_ALWAYS_TRUE, no_bucket, WARNING, [Here]
codetoanalyze/java/performance/Compound_loop.java, codetoanalyze.java.performance.Compound_loop.nested_while_and_or(int):int, 3, CONDITION_ALWAYS_TRUE, no_bucket, WARNING, [Here]
codetoanalyze/java/performance/Compound_loop.java, codetoanalyze.java.performance.Compound_loop.nested_while_and_or(int):int, 4, CONDITION_ALWAYS_TRUE, no_bucket, WARNING, [Here]
codetoanalyze/java/performance/Compound_loop.java, codetoanalyze.java.performance.Compound_loop.nested_while_and_or(int):int, 4, CONDITION_ALWAYS_TRUE, no_bucket, WARNING, [Here]
[cost] Refactor cost issue types and enable detecting allocation complexity increase on cold start Summary: - Add allocation costs to `costs-report.json` and enable diffing over allocation costs. - Also, let's be more consistent and modular in naming our cost issues. - introduce a generic issue type `X_TIME_COMPLEXITY_INCREASE` where `X` can be one of the cost kinds. If the function is on the cold start, issue can have the `COLD_START` suffix. Similarly for infinite/zero/expensive calls. - Change `PERFORMANCE_VARIATION` -> `EXECUTION_TIME_COMPLEXITY_INCREASE` - Add new issue type for `ALLOCATION_COMPLEXITY_INCREASE_COLD_START` which will be enabled by default - Refactor cost issues to be more modular and succinct. This also makes addition of a new cost kind very easy by adding the kind into the `enabled_cost_kinds` list in `CostKind.ml` Reviewed By: mbouaziz Differential Revision: D15822681 fbshipit-source-id: cf89ece59
6 years ago
codetoanalyze/java/performance/Compound_loop.java, codetoanalyze.java.performance.Compound_loop.while_and_or(int):void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded loop,Loop at line 24]
[inferbo] Add traces to Conditions always true/false and Unreachable code Reviewed By: ezgicicek Differential Revision: D13082665 fbshipit-source-id: bb0e4cbf3
6 years ago
codetoanalyze/java/performance/Compound_loop.java, codetoanalyze.java.performance.Compound_loop.while_and_or(int):void, 2, CONDITION_ALWAYS_TRUE, no_bucket, WARNING, [Here]
[inferbo] Trace refactoring Reviewed By: skcho Differential Revision: D13116116 fbshipit-source-id: 0b885dcfb
6 years ago
codetoanalyze/java/performance/Compound_loop.java, codetoanalyze.java.performance.Compound_loop.while_and_or(int):void, 3, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 1):signed32]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Continue.java, codetoanalyze.java.performance.Continue.continue_outer_loop():int, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 7963049, O(1), degree = 0]
[inferbo] Add InputStream.read model Summary: This diff adds a model of a `InputStream.read` function. Reviewed By: jvillard Differential Revision: D17422745 fbshipit-source-id: 861d6798d
5 years ago
codetoanalyze/java/performance/Cost_test.java, codetoanalyze.java.performance.Cost_test.FN_loop2(int):int, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 13 ⋅ k, O(k), degree = 1,{k},Loop at line 92]
[inferbo] Extend alias domain to have multiple aliases on a variable Summary: This diff extends the alias domain, so each variable can have multiple aliases. It changed `KeyLhs` can be mapped to multiple alias targets in the `AliasMap` domain: ``` before : KeyLhs.t -> KeyRhs.t * AliasTarget.t after : KeyLhs.t -> KeyRhs.t -> AliasTarget.t ``` Reviewed By: ezgicicek Differential Revision: D18062178 fbshipit-source-id: b325a6055
5 years ago
codetoanalyze/java/performance/Cost_test.java, codetoanalyze.java.performance.Cost_test.call_inputstream_read_linear(java.io.InputStream):void, 4, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 27304, O(1), degree = 0]
[inferbo] Add InputStream.read model Summary: This diff adds a model of a `InputStream.read` function. Reviewed By: jvillard Differential Revision: D17422745 fbshipit-source-id: 861d6798d
5 years ago
codetoanalyze/java/performance/Cost_test.java, codetoanalyze.java.performance.Cost_test.ignore_boolean_symbols_linear(boolean,int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 6 ⋅ n + 2 ⋅ (1+max(0, n)), O(n), degree = 1,{1+max(0, n)},Loop at line 135,{n},Loop at line 135]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Cost_test.java, codetoanalyze.java.performance.Cost_test.loop0_bad():int, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 1202, O(1), degree = 0]
codetoanalyze/java/performance/Cost_test.java, codetoanalyze.java.performance.Cost_test.loop1_bad():int, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 1303, O(1), degree = 0]
codetoanalyze/java/performance/Cost_test.java, codetoanalyze.java.performance.Cost_test.loop3(int):int, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 237, O(1), degree = 0]
[cost] Avoid giving top to unknown global in Java Summary: This diff avoids giving the top value to unknown globals in Java, because they harm precision of the cost checker. Instead, it doesn't subst the global symbols at function calls. Reviewed By: ezgicicek Differential Revision: D17498714 fbshipit-source-id: d1215b3aa
5 years ago
codetoanalyze/java/performance/Cost_test.java, codetoanalyze.java.performance.Cost_test.loop_on_unknown_global_linear():void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ codetoanalyze.java.performance.Cost_test.global + 5 ⋅ (1+max(0, codetoanalyze.java.performance.Cost_test.global)), O(codetoanalyze.java.performance.Cost_test.global), degree = 1,{1+max(0, codetoanalyze.java.performance.Cost_test.global)},Loop at line 203,{codetoanalyze.java.performance.Cost_test.global},Loop at line 203]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Cost_test.java, codetoanalyze.java.performance.Cost_test.main_bad():int, 7, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 205, O(1), degree = 0]
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.if_bad(int):void, 6, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 613, O(1), degree = 0]
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.if_bad_loop():int, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 201, O(1), degree = 0]
[inferbo] Widening threshold by comparison Summary: This diff adds a constant to the set of widening thresholds if the constant is compared to an abstract value in condition expressions. Each abstract value has its own set of thresholds. Reviewed By: mbouaziz Differential Revision: D14147150 fbshipit-source-id: ca0db34d4
6 years ago
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.if_bad_loop():int, 4, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 1):signed32]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.loop_despite_inferbo(int):int, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 1303, O(1), degree = 0]
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.loop_no_dep1(int):int, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 605, O(1), degree = 0]
[inferbo] Trace refactoring Reviewed By: skcho Differential Revision: D13116116 fbshipit-source-id: 0b885dcfb
6 years ago
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.loop_no_dep1(int):int, 4, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 1):signed32]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.loop_no_dep2(int):int, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 610, O(1), degree = 0]
[inferbo] Trace refactoring Reviewed By: skcho Differential Revision: D13116116 fbshipit-source-id: 0b885dcfb
6 years ago
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.loop_no_dep2(int):int, 4, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 1):signed32]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.nested_loop():int, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2543, O(1), degree = 0]
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.real_while():int, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 214, O(1), degree = 0]
[inferbo] Trace refactoring Reviewed By: skcho Differential Revision: D13116116 fbshipit-source-id: 0b885dcfb
6 years ago
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.real_while():int, 4, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Assignment,<RHS trace>,Assignment,Binary operation: ([0, +oo] + [0, 29]):signed32]
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.two_loops():int, 5, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([3, +oo] + 1):signed32]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Cost_test_deps.java, codetoanalyze.java.performance.Cost_test_deps.two_loops():int, 7, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 545, O(1), degree = 0]
[cost] Refactor cost issue types and enable detecting allocation complexity increase on cold start Summary: - Add allocation costs to `costs-report.json` and enable diffing over allocation costs. - Also, let's be more consistent and modular in naming our cost issues. - introduce a generic issue type `X_TIME_COMPLEXITY_INCREASE` where `X` can be one of the cost kinds. If the function is on the cold start, issue can have the `COLD_START` suffix. Similarly for infinite/zero/expensive calls. - Change `PERFORMANCE_VARIATION` -> `EXECUTION_TIME_COMPLEXITY_INCREASE` - Add new issue type for `ALLOCATION_COMPLEXITY_INCREASE_COLD_START` which will be enabled by default - Refactor cost issues to be more modular and succinct. This also makes addition of a new cost kind very easy by adding the kind into the `enabled_cost_kinds` list in `CostKind.ml` Reviewed By: mbouaziz Differential Revision: D15822681 fbshipit-source-id: cf89ece59
6 years ago
codetoanalyze/java/performance/EvilCfg.java, EvilCfg.foo(int,int,boolean):void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded loop,Loop at line 15]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/FieldAccess.java, codetoanalyze.java.performance.FieldAccess.iterate_upto_field_size(codetoanalyze.java.performance.FieldAccess$Test):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 6 ⋅ test.a, O(test.a), degree = 1,{test.a},Loop at line 16]
[cost] Mask min/max symbols when printing big O Summary: We want to keep big O notation as simple as possible in cost analysis reports (especially in diff time). Therefore, let's not show constants/min/max in big O notations even though the resulting asymptotic bound might be inaccurate. Developers can click on the trace and see the actual cost. Reviewed By: skcho Differential Revision: D16731351 fbshipit-source-id: 2e16f7eca
5 years ago
codetoanalyze/java/performance/IntTest.java, IntTest.intValue_linear(java.lang.Integer):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ mKBytesToSend + 3 ⋅ (1+max(0, mKBytesToSend)), O(mKBytesToSend), degree = 1,{1+max(0, mKBytesToSend)},Loop at line 9,{mKBytesToSend},Loop at line 9]
[inferbo] Add models for Java's Integer Summary: Add models for Java's Integer class. Reviewed By: skcho Differential Revision: D16668118 fbshipit-source-id: 05b3c8736
5 years ago
codetoanalyze/java/performance/IntTest.java, IntTest.static_Integer_top():void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded loop,Loop at line 15]
codetoanalyze/java/performance/IntTest.java, IntTest.static_Integer_top():void, 1, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 1):signed32]
[cost] Mask min/max symbols when printing big O Summary: We want to keep big O notation as simple as possible in cost analysis reports (especially in diff time). Therefore, let's not show constants/min/max in big O notations even though the resulting asymptotic bound might be inaccurate. Developers can click on the trace and see the actual cost. Reviewed By: skcho Differential Revision: D16731351 fbshipit-source-id: 2e16f7eca
5 years ago
codetoanalyze/java/performance/IntTest.java, IntTest.valueOf_linear(int):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 5 ⋅ p + 3 ⋅ (1+max(0, p)), O(p), degree = 1,{1+max(0, p)},Loop at line 20,{p},Loop at line 20]
codetoanalyze/java/performance/Invariant.java, Invariant.do_while_invariant(int,int):void, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 3 ⋅ (k - 1) + 4 ⋅ (max(1, k)), O(k), degree = 1,{max(1, k)},Loop at line 58,{k - 1},Loop at line 58]
[cost] Refactor cost issue types and enable detecting allocation complexity increase on cold start Summary: - Add allocation costs to `costs-report.json` and enable diffing over allocation costs. - Also, let's be more consistent and modular in naming our cost issues. - introduce a generic issue type `X_TIME_COMPLEXITY_INCREASE` where `X` can be one of the cost kinds. If the function is on the cold start, issue can have the `COLD_START` suffix. Similarly for infinite/zero/expensive calls. - Change `PERFORMANCE_VARIATION` -> `EXECUTION_TIME_COMPLEXITY_INCREASE` - Add new issue type for `ALLOCATION_COMPLEXITY_INCREASE_COLD_START` which will be enabled by default - Refactor cost issues to be more modular and succinct. This also makes addition of a new cost kind very easy by adding the kind into the `enabled_cost_kinds` list in `CostKind.ml` Reviewed By: mbouaziz Differential Revision: D15822681 fbshipit-source-id: cf89ece59
6 years ago
codetoanalyze/java/performance/Invariant.java, Invariant.formal_not_invariant_FP(int,int):void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded loop,Loop at line 31]
[inferbo] Revise widen of bounds Summary: This diff revises widening functions of bounds that have a linear form and a min/max form. For example, for lower bounds, * 3 ▽ (1+min(2, x)) = (1+min(2, x)) * 3+x ▽ (3+min(2, x)) = (3+min(2, x)) Reviewed By: jvillard Differential Revision: D17420786 fbshipit-source-id: ff9eebed3
5 years ago
codetoanalyze/java/performance/Invariant.java, Invariant.formal_not_invariant_FP(int,int):void, 2, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Parameter `x`,<RHS trace>,Parameter `x`,Binary operation: (size + [min(0, x), max(0, x)]):signed32]
[inferbo] Extract abstract domain functor for 'set represented by its smallest element' Reviewed By: skcho Differential Revision: D14243106 fbshipit-source-id: 900fbad3b
6 years ago
codetoanalyze/java/performance/Invariant.java, Invariant.formal_not_invariant_FP(int,int):void, 6, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Parameter `x`,Binary operation: ([0, +oo] + 1):signed32]
[cost] Mask min/max symbols when printing big O Summary: We want to keep big O notation as simple as possible in cost analysis reports (especially in diff time). Therefore, let's not show constants/min/max in big O notations even though the resulting asymptotic bound might be inaccurate. Developers can click on the trace and see the actual cost. Reviewed By: skcho Differential Revision: D16731351 fbshipit-source-id: 2e16f7eca
5 years ago
codetoanalyze/java/performance/Invariant.java, Invariant.list_size_invariant(java.util.List):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ items.length + 3 ⋅ (items.length + 1), O(items.length), degree = 1,{items.length + 1},Loop at line 66,{items.length},Loop at line 66]
codetoanalyze/java/performance/Invariant.java, Invariant.local_not_invariant_FP(int):void, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 3 + 12 ⋅ (size + 5) + 7 ⋅ (size + 5) × (5+min(1, size)) + 4 ⋅ (5+min(0, size)), O(size²), degree = 2,{5+min(0, size)},Loop at line 46,{5+min(1, size)},Loop at line 46,{size + 5},Loop at line 46]
codetoanalyze/java/performance/Invariant.java, Invariant.x_is_invariant_ok(int):void, 7, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 8 + 6 ⋅ (size + 20), O(size), degree = 1,{size + 20},Loop at line 19]
[cost] Revise hasNext() to avoid bottom in condition Summary: Before this diff it returned `[0,size-1]`, but which became bottom when size was given by 0. As a result, it made the both branches of `if(iterator.hasNext())` unreachable. Similarly, if the size was 1, it only visited the false branch of the if condition because the condition value was `[0,0]` at that time. This diff changes it to return `[0,size]`, so that * the false branch is reachable when the size is 0 * the both branches are reachable when the size is 1 Reviewed By: ezgicicek Differential Revision: D16803000 fbshipit-source-id: f8772be27
5 years ago
codetoanalyze/java/performance/IteratorTest.java, IteratorTest.appendTo(java.util.Iterator):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 1 + 10 ⋅ parts.length + 3 ⋅ (parts.length + 1), O(parts.length), degree = 1,{parts.length + 1},Loop at line 12,{parts.length},Loop at line 12]
codetoanalyze/java/performance/IteratorTest.java, IteratorTest.linearIterable(java.lang.Iterable):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 9 + 10 ⋅ elements.length + 3 ⋅ (elements.length + 1), O(elements.length), degree = 1,{elements.length + 1},call to void IteratorTest.appendTo(Iterator),Loop at line 12,{elements.length},call to void IteratorTest.appendTo(Iterator),Loop at line 12]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/JsonArray.java, libraries.marauder.analytics.utils.json.JsonArray.addStringEntry(java.lang.String):void, 4, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonArray.java, libraries.marauder.analytics.utils.json.JsonArray.addStringEntry(java.lang.String):void, 4, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 45 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,boolean):void, 1, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,boolean):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 52 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,double):void, 1, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,double):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 52 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,java.lang.Object):void, 1, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,java.lang.Object):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 52 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,java.lang.String):void, 1, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,java.lang.String):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 52 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,libraries.marauder.analytics.utils.json.JsonType):void, 5, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,libraries.marauder.analytics.utils.json.JsonType):void, 5, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 79 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,long):void, 1, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addEntry(java.lang.String,long):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 52 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonMap.addKeyToMap(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addKeyToMap(java.lang.String):void, 5, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonMap.java, libraries.marauder.analytics.utils.json.JsonMap.addKeyToMap(java.lang.String):void, 5, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 45 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonString.java, libraries.marauder.analytics.utils.json.JsonString.<init>(java.lang.String), 1, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost 1 + String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to StringBuilder JsonUtils.serialize(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonString.java, libraries.marauder.analytics.utils.json.JsonString.<init>(java.lang.String), 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 39 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to StringBuilder JsonUtils.serialize(String),call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonUtils.java, libraries.marauder.analytics.utils.json.JsonUtils.escape(java.lang.StringBuilder,java.lang.String):void, 1, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},Loop at line 13]
codetoanalyze/java/performance/JsonUtils.java, libraries.marauder.analytics.utils.json.JsonUtils.escape(java.lang.StringBuilder,java.lang.String):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 8 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},Loop at line 13]
codetoanalyze/java/performance/JsonUtils.java, libraries.marauder.analytics.utils.json.JsonUtils.serialize(java.lang.String):java.lang.StringBuilder, 2, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost 1 + String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonUtils.java, libraries.marauder.analytics.utils.json.JsonUtils.serialize(java.lang.String):java.lang.StringBuilder, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 33 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonUtils.serialize(StringBuilder,String),call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonUtils.java, libraries.marauder.analytics.utils.json.JsonUtils.serialize(java.lang.StringBuilder,java.lang.String):void, 5, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
codetoanalyze/java/performance/JsonUtils.java, libraries.marauder.analytics.utils.json.JsonUtils.serialize(java.lang.StringBuilder,java.lang.String):void, 5, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 24 + 65 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void JsonUtils.escape(StringBuilder,String),Loop at line 13]
[cost] Revise hasNext model Summary: This diff revises the semantics of hasNext model to add the lengths of arrays, rather than join them to top. Reviewed By: ezgicicek Differential Revision: D17882388 fbshipit-source-id: f5edaedb3
5 years ago
codetoanalyze/java/performance/ListTest.java, ListTest.asList_linear(java.lang.String[]):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 7 + 8 ⋅ array.length + 3 ⋅ (array.length + 1), O(array.length), degree = 1,{array.length + 1},Loop at line 42,{array.length},Loop at line 42]
codetoanalyze/java/performance/ListTest.java, ListTest.call_iterate_elements_linear(java.util.List,java.util.List):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 26 + 5 ⋅ (l2.length + l1.length) + 3 ⋅ (l2.length + l1.length + 1), O((l2.length + l1.length)), degree = 1,{l2.length + l1.length + 1},call to void ListTest.iterate_elements_linear(List),Loop at line 59,{l2.length + l1.length},call to void ListTest.iterate_elements_linear(List),Loop at line 59]
codetoanalyze/java/performance/ListTest.java, ListTest.indexOfImpl_linear(java.util.List,java.lang.Object):int, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 11 ⋅ list.length + 3 ⋅ (list.length + 1), O(list.length), degree = 1,{list.length + 1},Loop at line 18,{list.length},Loop at line 18]
[inferbo] Extend alias domain to have multiple aliases on a variable Summary: This diff extends the alias domain, so each variable can have multiple aliases. It changed `KeyLhs` can be mapped to multiple alias targets in the `AliasMap` domain: ``` before : KeyLhs.t -> KeyRhs.t * AliasTarget.t after : KeyLhs.t -> KeyRhs.t -> AliasTarget.t ``` Reviewed By: ezgicicek Differential Revision: D18062178 fbshipit-source-id: b325a6055
5 years ago
codetoanalyze/java/performance/ListTest.java, ListTest.iter_multiple_list1_linear(java.util.List,java.util.List):void, 8, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 17 + 12 ⋅ (l2.length + l1.length) + 3 ⋅ (l2.length + l1.length + 1), O((l2.length + l1.length)), degree = 1,{l2.length + l1.length + 1},Loop at line 76,{l2.length + l1.length},Loop at line 76]
[cost] Revise hasNext model Summary: This diff revises the semantics of hasNext model to add the lengths of arrays, rather than join them to top. Reviewed By: ezgicicek Differential Revision: D17882388 fbshipit-source-id: f5edaedb3
5 years ago
codetoanalyze/java/performance/ListTest.java, ListTest.iter_multiple_list2_linear(java.util.List,java.util.List):void, 7, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 14 + 8 ⋅ (l2.length + l1.length) + 3 ⋅ (l2.length + l1.length + 1), O((l2.length + l1.length)), degree = 1,{l2.length + l1.length + 1},Loop at line 88,{l2.length + l1.length},Loop at line 88]
[cost] Conservative array length evaluation Summary: This diff adopts an array length evaluation function that is conservative. It is useful when our domain cannot express length result precisely. For example, suppose there is an array pointer `arr_locs` that may point to two arrays `a` and `b`, and their lengths are `a.length` and `b.length` (symbols), respectively. Using the usual evaluation, our current domain cannot express `a.length join b.length` (join of two symbolic values), so it returns top. In this case, we can use the conservative function intead. It evaluates the length as `[0, a.length.ub + b.length.ub]`, since we know every array length is positive. The result is not precise, but better than top. Reviewed By: ezgicicek Differential Revision: D17908859 fbshipit-source-id: 7c0b1591b
5 years ago
codetoanalyze/java/performance/ListTest.java, ListTest.iter_multiple_list3_linear(java.util.List,java.util.List,java.util.List):void, 8, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 18 + 8 ⋅ (l2.length + l1.length + a.length) + 3 ⋅ (l2.length + l1.length + a.length + 1), O((l2.length + l1.length + a.length)), degree = 1,{l2.length + l1.length + a.length + 1},Loop at line 99,{l2.length + l1.length + a.length},Loop at line 99]
[cost] Revise hasNext model Summary: This diff revises the semantics of hasNext model to add the lengths of arrays, rather than join them to top. Reviewed By: ezgicicek Differential Revision: D17882388 fbshipit-source-id: f5edaedb3
5 years ago
codetoanalyze/java/performance/ListTest.java, ListTest.iterate_elements_linear(java.util.List):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 4 + 5 ⋅ l.length + 3 ⋅ (l.length + 1), O(l.length), degree = 1,{l.length + 1},Loop at line 59,{l.length},Loop at line 59]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/ListTest.java, ListTest.sort_comparator_nlogn(java.util.List):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 8 + people.length × log(people.length), O(people.length × log(people.length)), degree = 1 + 1⋅log,{people.length},Modeled call to List.sort,{people.length},Modeled call to List.sort]
[cost] Revise hasNext model Summary: This diff revises the semantics of hasNext model to add the lengths of arrays, rather than join them to top. Reviewed By: ezgicicek Differential Revision: D17882388 fbshipit-source-id: f5edaedb3
5 years ago
codetoanalyze/java/performance/ListTest.java, ListTest.sublist(java.util.List):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 11 + 8 ⋅ (filesList.length - 1) + 3 ⋅ filesList.length, O(filesList.length), degree = 1,{filesList.length},Loop at line 32,{filesList.length - 1},Loop at line 32]
[cost] Add modeled range Summary: `ModeledRange` represents how many times the interval value can be updated by modeled functions. This domain is to support the case where there are mismatches between value of a control variable and actual number of loop iterations. For example, ``` while((c = file_channel.read(buf)) != -1) { ... } ``` the loop will iterates as the file size, but the control variable `c` does not have that value. In these cases, it assigns a symbolic value of the file size to the modeled range of `c`, then which is used when calculating the overall cost. Reviewed By: jvillard Differential Revision: D17476621 fbshipit-source-id: 9a81376e8
5 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.charsequence_length_linear(java.lang.CharSequence):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ seq.length + 3 ⋅ (seq.length + 1), O(seq.length), degree = 1,{seq.length + 1},Loop at line 115,{seq.length},Loop at line 115]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.do_while_independent_of_p(int):int, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 250, O(1), degree = 0]
[cost] Add modeled range Summary: `ModeledRange` represents how many times the interval value can be updated by modeled functions. This domain is to support the case where there are mismatches between value of a control variable and actual number of loop iterations. For example, ``` while((c = file_channel.read(buf)) != -1) { ... } ``` the loop will iterates as the file size, but the control variable `c` does not have that value. In these cases, it assigns a symbolic value of the file size to the modeled range of `c`, then which is used when calculating the overall cost. Reviewed By: jvillard Differential Revision: D17476621 fbshipit-source-id: 9a81376e8
5 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.dumb0(long[],int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 25 ⋅ (length - 1), O(length), degree = 1,{length - 1},Loop at line 44]
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.dumbSort(long[],long[],int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 3 + 59 ⋅ (length - 1) × (length - 1) + 8 ⋅ length, O(length × length), degree = 2,{length},Loop at line 54,{length - 1},Loop at line 55,{length - 1},Loop at line 54]
[inferbo] Fix array member access in Java Summary: In SIL, Java's array member is a pointer to an array, while C++'s is the array itself. This diff differentiate them in evaluating abstract locations. Reviewed By: ezgicicek, mbouaziz Differential Revision: D14021451 fbshipit-source-id: 00f14fe3b
6 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.dumbSort(long[],long[],int):void, 3, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Parameter `a[*]`,<RHS trace>,Parameter `b[*]`,Binary operation: (a[*] × b[*]):signed64]
[cost] Set the minimum basic cost of node Summary: The zero cost of node does not make sense especially when the abstract memory is non-bottom. This resulted in unreasonable zero cost results sometimes, e.g. when the checker could not find appropriate control varaibles having interval values of iteration. This diff fixes this, so sets the minimum basic cost as 1, if the abstract memory at the node is non-bottom. Reviewed By: ezgicicek Differential Revision: D18199291 fbshipit-source-id: b215d10e5
5 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.length_of_linked_list_linear_FP(codetoanalyze.java.performance.Loops$MyLinkedList):void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded value x,call to void Loops.linear(int),Loop at line 86]
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.length_of_linked_list_linear_FP(codetoanalyze.java.performance.Loops$MyLinkedList):void, 3, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 1):signed32]
[cost] Add modeled range Summary: `ModeledRange` represents how many times the interval value can be updated by modeled functions. This domain is to support the case where there are mismatches between value of a control variable and actual number of loop iterations. For example, ``` while((c = file_channel.read(buf)) != -1) { ... } ``` the loop will iterates as the file size, but the control variable `c` does not have that value. In these cases, it assigns a symbolic value of the file size to the modeled range of `c`, then which is used when calculating the overall cost. Reviewed By: jvillard Differential Revision: D17476621 fbshipit-source-id: 9a81376e8
5 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.linear(int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ x, O(x), degree = 1,{x},Loop at line 86]
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.modeled_range_linear(java.nio.channels.FileChannel,java.nio.ByteBuffer):void, 4, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 14 ⋅ FileChannel.read(...).modeled, O(FileChannel.read(...).modeled), degree = 1,{FileChannel.read(...).modeled},Modeled call to read(...)]
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.modeled_range_linear(java.nio.channels.FileChannel,java.nio.ByteBuffer):void, 9, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 8):signed32]
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.nested_do_while_FP(int):void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded loop,Loop at line 34]
[inferbo] Trace refactoring Reviewed By: skcho Differential Revision: D13116116 fbshipit-source-id: 0b885dcfb
6 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.nested_do_while_FP(int):void, 8, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,Binary operation: ([0, +oo] + 1):signed32]
[cost] Add modeled range Summary: `ModeledRange` represents how many times the interval value can be updated by modeled functions. This domain is to support the case where there are mismatches between value of a control variable and actual number of loop iterations. For example, ``` while((c = file_channel.read(buf)) != -1) { ... } ``` the loop will iterates as the file size, but the control variable `c` does not have that value. In these cases, it assigns a symbolic value of the file size to the modeled range of `c`, then which is used when calculating the overall cost. Reviewed By: jvillard Differential Revision: D17476621 fbshipit-source-id: 9a81376e8
5 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.similar(codetoanalyze.java.performance.Loops$C[],codetoanalyze.java.performance.Loops$C[]):boolean, 4, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 16 + 26 ⋅ x.length, O(x.length), degree = 1,{x.length},Loop at line 77]
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.string_concat_linear(java.lang.String,java.lang.String):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 8 + 5 ⋅ (p.length + s.length) + 3 ⋅ (p.length + s.length + 1), O((p.length + s.length)), degree = 1,{p.length + s.length + 1},Loop at line 103,{p.length + s.length},Loop at line 103]
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.string_length_linear(java.lang.String):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ s.length + 3 ⋅ (s.length + 1), O(s.length), degree = 1,{s.length + 1},Loop at line 98,{s.length},Loop at line 98]
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.unboundedSymbol():void, 0, INFINITE_EXECUTION_TIME, no_bucket, ERROR, [Unbounded value x,call to void Loops.linear(int),Loop at line 86]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.unboundedSymbol():void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 6996, O(1), degree = 0]
[Cost] More precise traces for Top Reviewed By: ezgicicek Differential Revision: D14350180 fbshipit-source-id: 2cb8b0cd0
6 years ago
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.unboundedSymbol():void, 3, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [<LHS trace>,Assignment,<RHS trace>,Assignment,Binary operation: ([-oo, +oo] × [-oo, +oo]):signed32]
codetoanalyze/java/performance/Loops.java, codetoanalyze.java.performance.Loops.unboundedSymbol():void, 5, INTEGER_OVERFLOW_L5, no_bucket, ERROR, [Assignment,Call,<LHS trace>,Parameter `x`,Binary operation: ([0, +oo] + 1):signed32 by call to `void Loops.linear(int)` ]
[cost] Revise hasNext() to avoid bottom in condition Summary: Before this diff it returned `[0,size-1]`, but which became bottom when size was given by 0. As a result, it made the both branches of `if(iterator.hasNext())` unreachable. Similarly, if the size was 1, it only visited the false branch of the if condition because the condition value was `[0,0]` at that time. This diff changes it to return `[0,size]`, so that * the false branch is reachable when the size is 0 * the both branches are reachable when the size is 1 Reviewed By: ezgicicek Differential Revision: D16803000 fbshipit-source-id: f8772be27
5 years ago
codetoanalyze/java/performance/MapTest.java, MapTest.entrySet_linear(java.util.Map):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 7 + 8 ⋅ map.length + 3 ⋅ (map.length + 1), O(map.length), degree = 1,{map.length + 1},Loop at line 17,{map.length},Loop at line 17]
codetoanalyze/java/performance/MapTest.java, MapTest.keySet_linear(java.util.Map):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 7 + 8 ⋅ map.length + 3 ⋅ (map.length + 1), O(map.length), degree = 1,{map.length + 1},Loop at line 13,{map.length},Loop at line 13]
codetoanalyze/java/performance/MapTest.java, MapTest.putAll_linear(java.util.Map):void, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 13 + 8 ⋅ map.length + 3 ⋅ (map.length + 1), O(map.length), degree = 1,{map.length + 1},Loop at line 28,{map.length},Loop at line 28]
codetoanalyze/java/performance/MapTest.java, MapTest.values_linear(java.util.Map):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 13 + 8 ⋅ (map.length + 1) + 3 ⋅ (map.length + 2), O(map.length), degree = 1,{map.length + 2},Loop at line 22,{map.length + 1},Loop at line 22]
[inferbo] Extend bound to express Min/Max(bound, bound) Summary: This diff extends bound domain to express Min/Max of another bounds, so it can keep some more precision in `Math.min/max`. limitation: `MinMaxB`, the constructor of the bound, can contain only linear expressions or previous min/max expressions. Reviewed By: ezgicicek Differential Revision: D18395365 fbshipit-source-id: fc90d27fd
5 years ago
codetoanalyze/java/performance/MathTest.java, codetoanalyze.java.performance.MathTest.call_with_max_linear(int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 11 + 5 ⋅ (max(1, x)), O(x), degree = 1,{max(1, x)},call to void MathTest.linear(int),Loop at line 28]
codetoanalyze/java/performance/MathTest.java, codetoanalyze.java.performance.MathTest.linear(int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ p, O(p), degree = 1,{p},Loop at line 28]
codetoanalyze/java/performance/MathTest.java, codetoanalyze.java.performance.MathTest.max2_symbolic(int,int):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 6 + 9 ⋅ (max(x, y)), O((max(x, y))), degree = 1,{max(x, y)},Loop at line 20]
[inferbo] Add models for Math.min and Math.max Reviewed By: skcho Differential Revision: D18350518 fbshipit-source-id: 39c6b12f0
5 years ago
codetoanalyze/java/performance/MathTest.java, codetoanalyze.java.performance.MathTest.max_symbolic(int[]):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ arr.length + 4 ⋅ (arr.length + 1), O(arr.length), degree = 1,{arr.length + 1},Loop at line 16,{arr.length},Loop at line 16]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/StringTest.java, StringTest.index_substring_linear():java.lang.String, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 9 + this.mId.length, O(this.mId.length), degree = 1,{this.mId.length},call to int StringTest.indexof_linear(String),Modeled call to String.indexOf]
codetoanalyze/java/performance/StringTest.java, StringTest.indexof_from_linear(java.lang.String,int):int, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 3 + (-j + m.length), O((-j + m.length)), degree = 1,{-j + m.length},Modeled call to String.indexOf]
codetoanalyze/java/performance/StringTest.java, StringTest.indexof_linear(java.lang.String):int, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + m.length, O(m.length), degree = 1,{m.length},Modeled call to String.indexOf]
codetoanalyze/java/performance/StringTest.java, StringTest.indexof_quadratic(java.lang.String,java.lang.String):int, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 3 + m.length × n.length, O(m.length × n.length), degree = 2,{n.length},Modeled call to String.indexOf,{m.length},Modeled call to String.indexOf]
[inferbo] Add traces to Conditions always true/false and Unreachable code Reviewed By: ezgicicek Differential Revision: D13082665 fbshipit-source-id: bb0e4cbf3
6 years ago
codetoanalyze/java/performance/Switch.java, codetoanalyze.java.performance.Switch.test_switch():int, 3, CONDITION_ALWAYS_TRUE, no_bucket, WARNING, [Here]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/Switch.java, codetoanalyze.java.performance.Switch.test_switch():int, 3, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 798, O(1), degree = 0]
[inferbo] Add traces to Conditions always true/false and Unreachable code Reviewed By: ezgicicek Differential Revision: D13082665 fbshipit-source-id: bb0e4cbf3
6 years ago
codetoanalyze/java/performance/Switch.java, codetoanalyze.java.performance.Switch.vanilla_switch(int):void, 2, CONDITION_ALWAYS_TRUE, no_bucket, WARNING, [Here]
[inferbo] Add models for Math.min and Math.max Reviewed By: skcho Differential Revision: D18350518 fbshipit-source-id: 39c6b12f0
5 years ago
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.call_concrete_func_linear(UnknownCallsTest$AbstractC):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 6 ⋅ UnknownCallsTest$AbstractC.abstract_func().length.ub, O(UnknownCallsTest$AbstractC.abstract_func().length.ub), degree = 1,{UnknownCallsTest$AbstractC.abstract_func().length.ub},Loop at line 94]
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.call_loop_over_charArray(java.lang.StringBuilder,java.lang.String):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 14 + 12 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},call to void UnknownCallsTest.loop_over_charArray(StringBuilder,String),Loop at line 51]
[inferbo] Symbolic value on functions returning only exception Summary: This diff generates a symbolic value when a function returns only exceptions. Previously, the exception expression is evaluated to top, thus it was propagated to other functions, which made those costs as top. For preventing that situation, this diff changed: * exception expressions are evaluated to bottom, and * if callee's return value is bottom, it generates a symbolic value for it. Reviewed By: ezgicicek Differential Revision: D17500386 fbshipit-source-id: 0fdcc710d
5 years ago
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.call_may_throw_exception_constant():void, 1, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost 11, O(1), degree = 0]
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.call_may_throw_exception_constant():void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 217, O(1), degree = 0]
[inferbo] Add models for Math.min and Math.max Reviewed By: skcho Differential Revision: D18350518 fbshipit-source-id: 39c6b12f0
5 years ago
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.call_throw_exception_linear():void, 1, EXPENSIVE_ALLOCATION, no_bucket, ERROR, [with estimated cost (1+max(0, UnknownCallsTest.throw_exception().ub)), O(UnknownCallsTest.throw_exception().ub), degree = 1,{1+max(0, UnknownCallsTest.throw_exception().ub)},Loop at line 71]
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.call_throw_exception_linear():void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 5 ⋅ UnknownCallsTest.throw_exception().ub + 8 ⋅ (1+max(0, UnknownCallsTest.throw_exception().ub)), O(UnknownCallsTest.throw_exception().ub), degree = 1,{1+max(0, UnknownCallsTest.throw_exception().ub)},Loop at line 71,{UnknownCallsTest.throw_exception().ub},Loop at line 71]
[cost] Record bigO in error trace description Summary: In order to test changes to bigO notation, let's record them in test results. Reviewed By: skcho Differential Revision: D16763972 fbshipit-source-id: c1376909b
5 years ago
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.jsonArray_linear(org.json.JSONArray):void, 2, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 5 + 5 ⋅ jsonArray.length, O(jsonArray.length), degree = 1,{jsonArray.length},Loop at line 18]
[inferbo] Add models for Math.min and Math.max Reviewed By: skcho Differential Revision: D18350518 fbshipit-source-id: 39c6b12f0
5 years ago
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.loop_over_charArray(java.lang.StringBuilder,java.lang.String):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 8 + 12 ⋅ String.toCharArray().length.ub, O(String.toCharArray().length.ub), degree = 1,{String.toCharArray().length.ub},Loop at line 51]
[inferbo] Symbolic value on functions returning only exception Summary: This diff generates a symbolic value when a function returns only exceptions. Previously, the exception expression is evaluated to top, thus it was propagated to other functions, which made those costs as top. For preventing that situation, this diff changed: * exception expressions are evaluated to bottom, and * if callee's return value is bottom, it generates a symbolic value for it. Reviewed By: ezgicicek Differential Revision: D17500386 fbshipit-source-id: 0fdcc710d
5 years ago
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.may_throw_exception():int, 2, UNREACHABLE_CODE, no_bucket, ERROR, [Here]
[inferbo] Add models for Math.min and Math.max Reviewed By: skcho Differential Revision: D18350518 fbshipit-source-id: 39c6b12f0
5 years ago
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.read_max_cost(java.io.InputStream,byte[],int,int,java.util.ArrayList):int, 8, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 21 + 5 ⋅ (byteCount + 1), O(byteCount), degree = 1,{byteCount + 1},Loop at line 46]
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.read_sum_cost(java.io.InputStream,byte[],int,int,java.util.ArrayList):int, 6, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 15 + 6 ⋅ 2⋅byteCount, O(2⋅byteCount), degree = 1,{2⋅byteCount},Loop at line 33]
[inferbo] Symbolic value on functions returning only exception Summary: This diff generates a symbolic value when a function returns only exceptions. Previously, the exception expression is evaluated to top, thus it was propagated to other functions, which made those costs as top. For preventing that situation, this diff changed: * exception expressions are evaluated to bottom, and * if callee's return value is bottom, it generates a symbolic value for it. Reviewed By: ezgicicek Differential Revision: D17500386 fbshipit-source-id: 0fdcc710d
5 years ago
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.throw_exception():int, 1, UNREACHABLE_CODE, no_bucket, ERROR, [Here]
[inferbo] Add models for Math.min and Math.max Reviewed By: skcho Differential Revision: D18350518 fbshipit-source-id: 39c6b12f0
5 years ago
codetoanalyze/java/performance/UnknownCallsTest.java, UnknownCallsTest.unmodeled_impure_linear(java.util.ArrayList):void, 1, EXPENSIVE_EXECUTION_TIME, no_bucket, ERROR, [with estimated cost 2 + 13 ⋅ list.length + 3 ⋅ (list.length + 1), O(list.length), degree = 1,{list.length + 1},Loop at line 61,{list.length},Loop at line 61]