From fa14b993e476e7e77a6640e5a9d27cb4735e9785 Mon Sep 17 00:00:00 2001
From: dehnert <dehnert@cs.rwth-aachen.de>
Date: Fri, 1 Jun 2018 08:37:12 +0200
Subject: [PATCH] fixing valid block abstractor

---
 .../abstraction/ValidBlockAbstractor.cpp      | 21 +++----------------
 1 file changed, 3 insertions(+), 18 deletions(-)

diff --git a/src/storm/abstraction/ValidBlockAbstractor.cpp b/src/storm/abstraction/ValidBlockAbstractor.cpp
index bf213964d..dbc84dd13 100644
--- a/src/storm/abstraction/ValidBlockAbstractor.cpp
+++ b/src/storm/abstraction/ValidBlockAbstractor.cpp
@@ -77,26 +77,11 @@ namespace storm {
                 if (relevantVariablesAndPredicates[blockIndex].size() < predicateBlock.size()) {
                     recomputeValidBlocksForPredicateBlock(blockIndex);
                 }
+                
+                newValidBlocks &= validBlocksForPredicateBlocks[blockIndex];
             }
             
-            // Now compute the conjunction of all blocks.
-            std::vector<storm::dd::Bdd<DdType>> blocks = validBlocksForPredicateBlocks;
-            std::vector<storm::dd::Bdd<DdType>> newBlocks;
-            while (blocks.size() > 1) {
-                storm::utility::Stopwatch conj(true);
-                for (uint64_t blockIndex = 0; blockIndex < blocks.size(); ++blockIndex) {
-                    if (blockIndex < localExpressionInformation.getNumberOfBlocks() - 1) {
-                        newBlocks.emplace_back(blocks[blockIndex] && blocks[blockIndex + 1]);
-                    } else {
-                        newBlocks.emplace_back(blocks[blockIndex]);
-                    }
-                }
-                conj.stop();
-
-                std::swap(blocks, newBlocks);
-            }
-            
-            validBlocks = blocks.front();
+            validBlocks = newValidBlocks;
         }
         
         template <storm::dd::DdType DdType>