{"id":12414,"date":"2020-11-30T16:35:38","date_gmt":"2020-11-30T15:35:38","guid":{"rendered":"https:\/\/stage.prover.com\/?p=12414"},"modified":"2025-01-08T13:55:36","modified_gmt":"2025-01-08T12:55:36","slug":"engineering-safe-rail-control-with-formal-verification","status":"publish","type":"post","link":"https:\/\/www.prover.com\/guide\/engineering-safe-rail-control-with-formal-verification\/","title":{"rendered":"Engineering safe rail control with formal verification"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:0px;--awb-padding-right:0px;--awb-padding-bottom:0px;--awb-padding-left:0px;--awb-margin-top:0px;--awb-margin-bottom:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1280px + 80px );margin-left: calc(-80px \/ 2 );margin-right: calc(-80px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:calc( 0.1 * calc( 100% - 80px ) );--awb-margin-bottom-large:0px;--awb-spacing-left-large:40px;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:calc( 0.1 * calc( 100% - 80px ) );--awb-spacing-left-medium:40px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-six\" style=\"--awb-margin-top:0px;--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h6 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;text-transform:uppercase;\">Your Content Goes Here<\/h6><\/div><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"--awb-margin-top:0px;--awb-margin-bottom:25px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:30px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;text-transform:none;\">Engineering safe rail control with formal verification<\/h1><\/div><div class=\"fusion-text fusion-text-1 fusion-text-no-margin\" style=\"--awb-margin-top:0px;--awb-margin-right:0px;--awb-margin-bottom:0px;--awb-margin-left:0px;\"><p>Let's discuss why formal verification should be used to verify software safety requirements! As a provider of formal verification, we are fully convinced that it is the best methodology for safety verification and should be used when engineering safe rail control systems.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-five\" style=\"--awb-margin-top:40px;--awb-margin-bottom:0px;--awb-margin-top-small:30px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h5 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;text-transform:none;\">In this guide you will learn:<\/h5><\/div><ul style=\"--awb-size:17px;--awb-margin-top:20px;--awb-margin-right:0px;--awb-margin-bottom:30px;--awb-margin-left:0px;--awb-line-height:28.9px;--awb-icon-width:28.9px;--awb-icon-height:28.9px;--awb-icon-margin:11.9px;--awb-content-margin:40.8px;--awb-circlecolor:var(--awb-color3);--awb-circle-yes-font-size:14.96px;\" class=\"fusion-checklist fusion-checklist-1 fusion-checklist-default type-icons\"><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-check fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p>Benefits of using Formal Verification<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-check fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p>Engineering safe rail control systems<\/p>\n<\/div><\/li><\/ul><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_2 1_2 fusion-flex-column inv-form\" style=\"--awb-bg-color:var(--awb-color3);--awb-bg-color-hover:var(--awb-color3);--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:40px;--awb-margin-bottom-large:0px;--awb-spacing-left-large:40px;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:40px;--awb-spacing-left-medium:40px;--awb-width-small:100%;--awb-order-small:0;--awb-margin-top-small:40px;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-image-element \" style=\"--awb-aspect-ratio:2 \/ 1;--awb-margin-top:0px;--awb-margin-right:0px;--awb-margin-bottom:0px;--awb-margin-left:0px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none has-aspect-ratio\"><img decoding=\"async\" width=\"1200\" height=\"675\" alt=\"safe rail control with formal verification\" src=\"https:\/\/www.prover.com\/wp-content\/uploads\/2020\/11\/Engineering-safe-rail-control-with-Formal-Verification-min-jpg.webp\" data-orig-src=\"https:\/\/www.prover.com\/wp-content\/uploads\/2020\/11\/Engineering-safe-rail-control-with-Formal-Verification-min-jpg.webp\" class=\"lazyload img-responsive wp-image-14348 img-with-aspect-ratio\" data-parent-fit=\"cover\" data-parent-container=\".fusion-image-element\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271200%27%20height%3D%27675%27%20viewBox%3D%270%200%201200%20675%27%3E%3Crect%20width%3D%271200%27%20height%3D%27675%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.prover.com\/wp-content\/uploads\/2020\/11\/Engineering-safe-rail-control-with-Formal-Verification-min-200x113.webp 200w, https:\/\/www.prover.com\/wp-content\/uploads\/2020\/11\/Engineering-safe-rail-control-with-Formal-Verification-min-400x225.webp 400w, https:\/\/www.prover.com\/wp-content\/uploads\/2020\/11\/Engineering-safe-rail-control-with-Formal-Verification-min-600x338.webp 600w, https:\/\/www.prover.com\/wp-content\/uploads\/2020\/11\/Engineering-safe-rail-control-with-Formal-Verification-min-800x450.webp 800w, https:\/\/www.prover.com\/wp-content\/uploads\/2020\/11\/Engineering-safe-rail-control-with-Formal-Verification-min-jpg.webp 1200w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 840px) 100vw, 800px\" \/><\/span><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"--awb-flex-grow:0;--awb-flex-grow-medium:0;--awb-flex-grow-small:0;--awb-flex-shrink:0;--awb-flex-shrink-medium:0;--awb-flex-shrink-small:0;width:calc( 100% + 80px ) !important;max-width:calc( 100% + 80px ) !important;margin-left: calc(-80px \/ 2 );margin-right: calc(-80px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-0 fusion_builder_column_inner_1_1 1_1 fusion-flex-column\" style=\"--awb-padding-top:40px;--awb-padding-right:50px;--awb-padding-bottom:40px;--awb-padding-left:50px;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:40px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:40px;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:40px;--awb-spacing-left-medium:40px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-4 fusion-sep-none fusion-title-text fusion-title-size-four\" style=\"--awb-text-color:var(--awb-color1);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;text-transform:none;\">Yes please, send me the guide!<\/h4><\/div>\n\t\t\t\t\t\t<script>\n\t\t\t\t\t\t\twindow.hsFormsOnReady = window.hsFormsOnReady || [];\n\t\t\t\t\t\t\twindow.hsFormsOnReady.push(()=>{\n\t\t\t\t\t\t\t\thbspt.forms.create({\n\t\t\t\t\t\t\t\t\tportalId: 26789739,\n\t\t\t\t\t\t\t\t\tformId: \"6f13644b-7ff9-4612-aa88-f3a64ce24bb2\",\n\t\t\t\t\t\t\t\t\ttarget: \"#hbspt-form-1776215736000-1124074833\",\n\t\t\t\t\t\t\t\t\tregion: \"eu1\",\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t})});\n\t\t\t\t\t\t<\/script>\n\t\t\t\t\t\t<div class=\"hbspt-form\" id=\"hbspt-form-1776215736000-1124074833\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-margin-top:80px;--awb-margin-bottom:20px;--awb-background-color:var(--awb-custom_color_4);--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1280px + 80px );margin-left: calc(-80px \/ 2 );margin-right: calc(-80px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-padding-top:60px;--awb-padding-right:20px;--awb-padding-bottom:60px;--awb-padding-left:20px;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:40px;--awb-margin-bottom-large:0px;--awb-spacing-left-large:40px;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:40px;--awb-spacing-left-medium:40px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-5 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;text-transform:none;\">Table of Content<\/h2><\/div><div class=\"fusion-text fusion-text-2\"><ol>\n<li>Introduction<\/li>\n<li>When things go wrong<\/li>\n<li>Rules and regulations<\/li>\n<li>Architecture of Railway Control Systems<\/li>\n<li>Verification of Safety Requirements<\/li>\n<li>Methods for safety verification<\/li>\n<li>State Explosion<\/li>\n<li>Basic Ideas of Formal Verification<\/li>\n<li>What is needed for using Formal Verification<\/li>\n<\/ol>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:60px;--awb-padding-bottom:80px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-center fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"max-width:calc( 1280px + 80px );margin-left: calc(-80px \/ 2 );margin-right: calc(-80px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:40px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:40px;--awb-width-medium:66.666666666667%;--awb-order-medium:0;--awb-spacing-right-medium:40px;--awb-spacing-left-medium:40px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-6 fusion-sep-none fusion-title-text fusion-title-size-six\" style=\"--awb-margin-bottom:5px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h6 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;text-transform:uppercase;\">Introduction<\/h6><\/div><div class=\"fusion-title title fusion-title-7 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-margin-bottom:30px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;--awb-font-size:24pt;\"><h3 class=\"fusion-title-heading title-heading-left\" style=\"font-family:var(--awb-typography3-font-family);font-weight:var(--awb-typography3-font-weight);font-style:var(--awb-typography3-font-style);margin:0;letter-spacing:var(--awb-typography3-letter-spacing);text-transform:var(--awb-typography3-text-transform);font-size:1em;line-height:var(--awb-typography3-line-height);\">The importance of software safety for railway control systems<\/h3><\/div><div class=\"fusion-image-element \" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-2 hover-type-none\"><img decoding=\"async\" width=\"800\" height=\"450\" title=\"Engineering safe rail control with Formal Verification\" src=\"https:\/\/www.prover.com\/wp-content\/uploads\/2023\/04\/Engineering-safe-rail-control-with-Formal-Verification.jpg\" data-orig-src=\"https:\/\/www.prover.com\/wp-content\/uploads\/2023\/04\/Engineering-safe-rail-control-with-Formal-Verification.jpg\" alt class=\"lazyload img-responsive wp-image-12430\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27800%27%20height%3D%27450%27%20viewBox%3D%270%200%20800%20450%27%3E%3Crect%20width%3D%27800%27%20height%3D%27450%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.prover.com\/wp-content\/uploads\/2023\/04\/Engineering-safe-rail-control-with-Formal-Verification-200x113.webp 200w, https:\/\/www.prover.com\/wp-content\/uploads\/2023\/04\/Engineering-safe-rail-control-with-Formal-Verification-400x225.webp 400w, https:\/\/www.prover.com\/wp-content\/uploads\/2023\/04\/Engineering-safe-rail-control-with-Formal-Verification-600x338.webp 600w, https:\/\/www.prover.com\/wp-content\/uploads\/2023\/04\/Engineering-safe-rail-control-with-Formal-Verification.jpg 800w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 840px) 100vw, 800px\" \/><\/span><\/div><div class=\"fusion-text fusion-text-3 fusion-text-no-margin\" style=\"--awb-margin-top:60px;--awb-margin-bottom:40px;\"><p>A typical passenger train weighs between 1500 and 6000 tons and its freight train counterpart weighs more, between 3000 and 18000 tons. Trains are massive. The risks involved in such a mass travelling at high speeds make the safety aspects of the railway industry unique.<\/p>\n<p>Although the industry can pride itself with unusually high standards, each accident has the potential to develop into a major disaster. These risks demand verification techniques that go beyond the limits of testing. This is where the strengths of Formal Verification come into effect.<\/p>\n<p>Download the white paper to see what motivates our conviction.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_2_3 2_3 fusion-flex-column inv-form\" style=\"--awb-padding-top:50px;--awb-padding-right:50px;--awb-padding-bottom:40px;--awb-padding-left:50px;--awb-bg-color:var(--awb-color3);--awb-bg-color-hover:var(--awb-color3);--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:0px;--awb-margin-bottom-large:0px;--awb-spacing-left-large:40px;--awb-width-medium:66.666666666667%;--awb-order-medium:0;--awb-spacing-right-medium:0px;--awb-spacing-left-medium:40px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-8 fusion-sep-none fusion-title-text fusion-title-size-four\" style=\"--awb-text-color:var(--awb-color1);--awb-margin-bottom:10px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;text-transform:none;\">Fill out the form to read the full guide.<\/h4><\/div>\n\t\t\t\t\t\t<script>\n\t\t\t\t\t\t\twindow.hsFormsOnReady = window.hsFormsOnReady || [];\n\t\t\t\t\t\t\twindow.hsFormsOnReady.push(()=>{\n\t\t\t\t\t\t\t\thbspt.forms.create({\n\t\t\t\t\t\t\t\t\tportalId: 26789739,\n\t\t\t\t\t\t\t\t\tformId: \"6f13644b-7ff9-4612-aa88-f3a64ce24bb2\",\n\t\t\t\t\t\t\t\t\ttarget: \"#hbspt-form-1776215736000-4948753579\",\n\t\t\t\t\t\t\t\t\tregion: \"eu1\",\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t})});\n\t\t\t\t\t\t<\/script>\n\t\t\t\t\t\t<div class=\"hbspt-form\" id=\"hbspt-form-1776215736000-4948753579\"><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Let&#8217;s discuss why formal verification should be used to verify software safety requirements! As a provider of formal verification, we are fully convinced that it is the best methodology for safety verification and should be used when engineering safe rail control systems.<\/p>\n","protected":false},"author":16,"featured_media":14348,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[163,155],"tags":[],"class_list":["post-12414","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","category-safety"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Engineering safe rail control with formal verification - Prover - Engineering a Safer World<\/title>\n<meta name=\"description\" content=\"In this guide we discuss why formal verification should be used to verify software safety requirements. 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