Z3

Linux 命令行日常交互篇

由 末鹿安然 提交于 2020-07-28 04:13:01
1. 说明 1.1 bash 命令说明 bash 命令一般格式： 命令名 [选项] [参数1] [参数2] … ； 例如：拷贝文件： cp –i file1.c myfile.c ； 命令区分大小写，通常为小写英文字母 命令、选项、参数三者之间要用空格或制表符隔开 选项以"-"开始，多个选项可用"-"连起来；示例： tar -zxvf nginx-1.8.tar.gz 命令在正常执行后返回一个 0 值，表示执行成功 "|"标识管道，管道前者的命令输出作为后者的输入; 示例： ps -ef|grep nginx 一般的"命令名 --help"可以查看命令支持的选项，获取命令的用法，示例： cat --help 1.2 简单命令 who，列出所有正在使用系统的用户、所用终端名和注册到系统的时间 echo，将命令行中的参数显示到标准输出（即屏幕）上 date，在屏幕上显示或设置系统的日期和时间 clear，清除屏幕上的信息 passwd，修改用户密码 pwd，查看当前所在路径 灵魂操作复制粘贴， Ctrl+Insert ， Shift+Insert ，当然有 cp 命令更方便 1.3 文件说明 Linux系统区分文件名的大小写 以圆点（.）开头的文件名是隐含文件 1.4 目录说明 目录结构 用户主目录：用户当前工作目录 目录介绍 /bin 基本命令二进制文件 /boot

MFC界面开发进入BCGControlBar v30.5时代，Ribbon Bar全新升级

由 ▼魔方 西西 提交于 2020-07-27 05:58:29
亲爱的BCGSoft用户，我们非常高兴地宣布 BCGControlBar Professional for MFC 和 BCGSuite for MFC v30.5正式发布！新版本包含针对基于功能区应用程序的上下文菜单自定义、themed rebar、改进高对比度模式支持、以及其他新功能和改进。该库和示例已使用最新版本的Visual Studio 2019和Windows SDK进行了全面测试。需要最新版的可以点击这里【 BCG下载 】 Ribbon Bar 1. CBCGPRibbonSlider：现在根据当前DPI缩放控件宽度。 2. CBCGPRibbonBar: GetItemIDsList具有一个新的可选参数“ bIncludePrintPreview”。 如果此参数为FALSE，则"Print Preview"类别中的控件不包括在项目列表中。 3. 新的虚拟方法CBCGPRibbonComboBox::OnCompareStrings允许自定义Ribbon组合框项目的排序。 4. 一个新的类CBCGPRibbonFontSizeComboBox允许选择特定字体的大小，此外Ribbon Designer中添加功能区字体大小组合框。 5. 为基于功能区的应用程序添加上下文菜单自定义

Incremental Learning using MAXSMT

由 别来无恙 提交于 2020-07-23 11:01:06
问题 Can we use the previous solution of a MaxSMT solver (optimize) in an incremental way in z3? Also, Is there any way to print out the soft assertions on the optimizer? 回答1: The answer is YES if you are asking whether it is technically possible to run either z3 or OptiMathSAT incrementally with a MaxSMT problem. (Use the API). All soft-clauses with the same id --at the moment in which one performs a check-sat -- are considered part of the same MaxSMT goal. In essence, the OMT solver evaluates

Incremental Learning using MAXSMT

由 别说谁变了你拦得住时间么 提交于 2020-07-23 10:58:23
问题 Can we use the previous solution of a MaxSMT solver (optimize) in an incremental way in z3? Also, Is there any way to print out the soft assertions on the optimizer? 回答1: The answer is YES if you are asking whether it is technically possible to run either z3 or OptiMathSAT incrementally with a MaxSMT problem. (Use the API). All soft-clauses with the same id --at the moment in which one performs a check-sat -- are considered part of the same MaxSMT goal. In essence, the OMT solver evaluates

Incremental Learning using MAXSMT

由 一笑奈何 提交于 2020-07-23 10:58:09
问题 Can we use the previous solution of a MaxSMT solver (optimize) in an incremental way in z3? Also, Is there any way to print out the soft assertions on the optimizer? 回答1: The answer is YES if you are asking whether it is technically possible to run either z3 or OptiMathSAT incrementally with a MaxSMT problem. (Use the API). All soft-clauses with the same id --at the moment in which one performs a check-sat -- are considered part of the same MaxSMT goal. In essence, the OMT solver evaluates

Z3: what's a more convenient and efficient method for defining class hierarchies?

由 折月煮酒 提交于 2020-07-10 07:01:13
问题 As an extension to a previous Z3-related question Using Resolution theorem proving with Z3 and built on top of @alias 's answer at https://stackoverflow.com/a/62721185/13861050 I've added a few more functions and relations: FEMALE = Function('FEMALE', Thing, BoolSort()) ANIMAL = Function('ANIMAL', Thing, BoolSort()) LIVING_THING = Function('LIVING_THING', Thing, BoolSort()) ENTITY = Function('ENTITY', Thing, BoolSort()) s.add(ForAll([x], Implies(WOMAN(x), FEMALE(x)))) s.add(ForAll([x],

Using Resolution theorem proving with Z3

由 那年仲夏 提交于 2020-07-09 17:13:35
问题 I am new to Z3 but have some prior experience using Prolog. I have managed to solve the following "puzzle", i.e. to prove that the girl is a witch using Prolog, but am at a loss how to implement it in Z3 (in C++ or Python): https://www.netfunny.com/rhf/jokes/90q4/burnher.html Do I need to declare Function() for assertions like BURNS(x) /\ WOMAN(x) and WOMAN(GIRL) What about implications of the sort \forall x, ISMADEOFWOOD(x) => BURNS(x) ? Any tips are appreciated 回答1: It should be pointed out

Using Resolution theorem proving with Z3

由 ￡可爱￡侵袭症＋ 提交于 2020-07-09 17:12:01
问题 I am new to Z3 but have some prior experience using Prolog. I have managed to solve the following "puzzle", i.e. to prove that the girl is a witch using Prolog, but am at a loss how to implement it in Z3 (in C++ or Python): https://www.netfunny.com/rhf/jokes/90q4/burnher.html Do I need to declare Function() for assertions like BURNS(x) /\ WOMAN(x) and WOMAN(GIRL) What about implications of the sort \forall x, ISMADEOFWOOD(x) => BURNS(x) ? Any tips are appreciated 回答1: It should be pointed out

How do you extract an element as the base type from a Seq type in Z3?

由 瘦欲@ 提交于 2020-06-25 21:42:28
问题 How do I extract an element in a Sequence to the base type, so that the following will work? (define-sort ISeq () (Seq Int)) (define-const x ISeq (seq.unit 5)) (define-const y ISeq (seq.unit 6)) (assert (>= (seq.at x 0) (seq.at y 0))) 回答1: Until a suitable function is implemented (or its existence is revealed to us), you could use the following work-around: (define-sort ISeq () (Seq Int)) (define-const x ISeq (seq.unit 5)) (define-const y ISeq (seq.unit 6)) (declare-const e1 Int) (declare

z3 alternative for Gecode branch() function?

由 南楼画角 提交于 2020-06-01 07:41:27
问题 In constraint solver like Gecode , We can control the exploration of search space with help of branching function. for e.g. branch(home , x , INT_VAL_MIN ) This will start exploring the search space from the minimum possible value of variable x in its domain and try to find solution.(There are many such alternatives .) For z3, do we have this kind of flexibility in-built ?? Any alternative possible?? 回答1: SMT solvers usually do not allow for these sorts of "hints" to be given, they act more
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