diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result
index b8efedc..45376e2 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result
@@ -1,20 +1,20 @@
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result
index ad448b2..dbc30fc 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result
@@ -1,23 +1,23 @@
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result
index ba9cb80..d238037 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result
@@ -1,7 +1,7 @@
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result
index f38e191..9c4d83a 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result
@@ -1,20 +1,20 @@
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result
index ab05d38..6432eda 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result
@@ -1,20 +1,20 @@
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result
index 1fc108a..2bd09e1 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result
@@ -1,23 +1,23 @@
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result
index ab05d38..6432eda 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result
@@ -1,20 +1,20 @@
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result
index ab05d38..9a747a6 100755
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result
@@ -1,20 +1,20 @@
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result
index 74113a8..a1dfc0f 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result
@@ -1,23 +1,23 @@
-0|Vertex(id=0,value=2, edges=(1,50,))
-1|Vertex(id=1,value=3, edges=(1,2,))
-2|Vertex(id=2,value=1, edges=(1,2,3,))
-3|Vertex(id=3,value=1, edges=(1,2,3,4,))
-4|Vertex(id=4,value=1, edges=(1,2,3,4,5,))
-5|Vertex(id=5,value=1, edges=(1,2,3,4,5,6,))
-6|Vertex(id=6,value=1, edges=(1,2,3,4,5,6,7,))
-7|Vertex(id=7,value=1, edges=(1,2,3,4,5,6,7,8,))
-8|Vertex(id=8,value=1, edges=(1,2,3,4,5,6,7,8,9,))
-9|Vertex(id=9,value=1, edges=(1,2,3,4,5,6,7,8,9,10,))
-10|Vertex(id=10,value=3, edges=(11,99,))
-11|Vertex(id=11,value=2, edges=(11,12,101,))
-12|Vertex(id=12,value=2, edges=(11,12,13,))
-13|Vertex(id=13,value=2, edges=(11,12,13,14,))
-14|Vertex(id=14,value=2, edges=(11,12,13,14,15,))
-15|Vertex(id=15,value=2, edges=(11,12,13,14,15,16,))
-16|Vertex(id=16,value=2, edges=(11,12,13,14,15,16,17,))
-17|Vertex(id=17,value=2, edges=(11,12,13,14,15,16,17,18,))
-18|Vertex(id=18,value=2, edges=(11,12,13,14,15,16,17,18,19,))
-19|Vertex(id=19,value=2, edges=(0,11,12,13,14,15,16,17,18,19,))
-21|Vertex(id=21,value=0, edges=(22,23,24,))
-25|Vertex(id=25,value=0, edges=())
-27|Vertex(id=27,value=0, edges=())
+0 2
+1 3
+2 1
+3 1
+4 1
+5 1
+6 1
+7 1
+8 1
+9 1
+10 3
+11 2
+12 2
+13 2
+14 2
+15 2
+16 2
+17 2
+18 2
+19 2
+21 0
+25 0
+27 0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result
index ea0edc2..1693fb2 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result
@@ -1,23 +1,23 @@
-0|Vertex(id=0,value=1, edges=(1,50,))
-1|Vertex(id=1,value=1, edges=(1,2,))
-2|Vertex(id=2,value=1, edges=(1,2,3,))
-3|Vertex(id=3,value=1, edges=(1,2,3,4,))
-4|Vertex(id=4,value=1, edges=(1,2,3,4,5,))
-5|Vertex(id=5,value=1, edges=(1,2,3,4,5,6,))
-6|Vertex(id=6,value=1, edges=(1,2,3,4,5,6,7,))
-7|Vertex(id=7,value=1, edges=(1,2,3,4,5,6,7,8,))
-8|Vertex(id=8,value=1, edges=(1,2,3,4,5,6,7,8,9,))
-9|Vertex(id=9,value=1, edges=(1,2,3,4,5,6,7,8,9,10,))
-10|Vertex(id=10,value=1, edges=(11,99,))
-11|Vertex(id=11,value=1, edges=(11,12,101,))
-12|Vertex(id=12,value=1, edges=(11,12,13,))
-13|Vertex(id=13,value=1, edges=(11,12,13,14,))
-14|Vertex(id=14,value=1, edges=(11,12,13,14,15,))
-15|Vertex(id=15,value=1, edges=(11,12,13,14,15,16,))
-16|Vertex(id=16,value=1, edges=(11,12,13,14,15,16,17,))
-17|Vertex(id=17,value=1, edges=(11,12,13,14,15,16,17,18,))
-18|Vertex(id=18,value=1, edges=(11,12,13,14,15,16,17,18,19,))
-19|Vertex(id=19,value=1, edges=(0,11,12,13,14,15,16,17,18,19,))
-21|Vertex(id=21,value=0, edges=(22,23,24,))
-25|Vertex(id=25,value=2, edges=())
-27|Vertex(id=27,value=0, edges=())
+0 1
+1 1
+2 1
+3 1
+4 1
+5 1
+6 1
+7 1
+8 1
+9 1
+10 1
+11 1
+12 1
+13 1
+14 1
+15 1
+16 1
+17 1
+18 1
+19 1
+21 0
+25 2
+27 0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result
index 7bb0ca3..46d1c73 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result
@@ -1,20 +1,20 @@
-0|Vertex(id=0,value=0.0, edges=(1,))
-1|Vertex(id=1,value=0.0, edges=(1,2,))
-2|Vertex(id=2,value=100.0, edges=(1,2,3,))
-3|Vertex(id=3,value=300.0, edges=(1,2,3,4,))
-4|Vertex(id=4,value=600.0, edges=(1,2,3,4,5,))
-5|Vertex(id=5,value=1000.0, edges=(1,2,3,4,5,6,))
-6|Vertex(id=6,value=1500.0, edges=(1,2,3,4,5,6,7,))
-7|Vertex(id=7,value=2100.0, edges=(1,2,3,4,5,6,7,8,))
-8|Vertex(id=8,value=2800.0, edges=(1,2,3,4,5,6,7,8,9,))
-9|Vertex(id=9,value=3600.0, edges=(1,2,3,4,5,6,7,8,9,10,))
-10|Vertex(id=10,value=4500.0, edges=(11,))
-11|Vertex(id=11,value=5500.0, edges=(11,12,))
-12|Vertex(id=12,value=6600.0, edges=(11,12,13,))
-13|Vertex(id=13,value=7800.0, edges=(11,12,13,14,))
-14|Vertex(id=14,value=9100.0, edges=(11,12,13,14,15,))
-15|Vertex(id=15,value=10500.0, edges=(11,12,13,14,15,16,))
-16|Vertex(id=16,value=12000.0, edges=(11,12,13,14,15,16,17,))
-17|Vertex(id=17,value=13600.0, edges=(11,12,13,14,15,16,17,18,))
-18|Vertex(id=18,value=15300.0, edges=(11,12,13,14,15,16,17,18,19,))
-19|Vertex(id=19,value=17100.0, edges=(0,11,12,13,14,15,16,17,18,19,))
+0 0.0
+1 0.0
+2 100.0
+3 300.0
+4 600.0
+5 1000.0
+6 1500.0
+7 2100.0
+8 2800.0
+9 3600.0
+10 4500.0
+11 5500.0
+12 6600.0
+13 7800.0
+14 9100.0
+15 10500.0
+16 12000.0
+17 13600.0
+18 15300.0
+19 17100.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result
index f2c31a6..b42462f 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result
@@ -1,20 +1,20 @@
-0|Vertex(id=0,value=0.0, edges=(1,))
-1|Vertex(id=1,value=1.0, edges=(1,2,))
-2|Vertex(id=2,value=2.0, edges=(1,2,3,))
-3|Vertex(id=3,value=3.0, edges=(1,2,3,4,))
-4|Vertex(id=4,value=4.0, edges=(1,2,3,4,5,))
-5|Vertex(id=5,value=5.0, edges=(1,2,3,4,5,6,))
-6|Vertex(id=6,value=6.0, edges=(1,2,3,4,5,6,7,))
-7|Vertex(id=7,value=7.0, edges=(1,2,3,4,5,6,7,8,))
-8|Vertex(id=8,value=8.0, edges=(1,2,3,4,5,6,7,8,9,))
-9|Vertex(id=9,value=9.0, edges=(1,2,3,4,5,6,7,8,9,10,))
-10|Vertex(id=10,value=10.0, edges=(11,))
-11|Vertex(id=11,value=11.0, edges=(11,12,))
-12|Vertex(id=12,value=12.0, edges=(11,12,13,))
-13|Vertex(id=13,value=13.0, edges=(11,12,13,14,))
-14|Vertex(id=14,value=14.0, edges=(11,12,13,14,15,))
-15|Vertex(id=15,value=15.0, edges=(11,12,13,14,15,16,))
-16|Vertex(id=16,value=16.0, edges=(11,12,13,14,15,16,17,))
-17|Vertex(id=17,value=17.0, edges=(11,12,13,14,15,16,17,18,))
-18|Vertex(id=18,value=18.0, edges=(11,12,13,14,15,16,17,18,19,))
-19|Vertex(id=19,value=19.0, edges=(0,11,12,13,14,15,16,17,18,19,))
+0 0.0
+1 1.0
+2 2.0
+3 3.0
+4 4.0
+5 5.0
+6 6.0
+7 7.0
+8 8.0
+9 9.0
+10 10.0
+11 11.0
+12 12.0
+13 13.0
+14 14.0
+15 15.0
+16 16.0
+17 17.0
+18 18.0
+19 19.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result
index 8d2050b..4818e13 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result
@@ -1,7 +1,7 @@
-1|Vertex(id=1,value=3, edges=(2,3,4,))
-2|Vertex(id=2,value=2, edges=(1,3,4,5,))
-3|Vertex(id=3,value=0, edges=(1,2,4,5,))
-4|Vertex(id=4,value=0, edges=(1,2,3,))
-5|Vertex(id=5,value=1, edges=(6,7,))
-6|Vertex(id=6,value=0, edges=(5,7,))
-7|Vertex(id=7,value=0, edges=(5,6,))
+1 3
+2 2
+3 0
+4 0
+5 1
+6 0
+7 0
diff --git a/pregelix/pregelix-example/src/test/resources/only.txt b/pregelix/pregelix-example/src/test/resources/only.txt
index 0c36816..e69de29 100644
--- a/pregelix/pregelix-example/src/test/resources/only.txt
+++ b/pregelix/pregelix-example/src/test/resources/only.txt
@@ -1 +0,0 @@
-Max
\ No newline at end of file