diff --git a/fuzzers/FRET/benchmark/plot_sqlite.r b/fuzzers/FRET/benchmark/plot_sqlite.r
index 913c5d9a8f..fd6221b88b 100644
--- a/fuzzers/FRET/benchmark/plot_sqlite.r
+++ b/fuzzers/FRET/benchmark/plot_sqlite.r
@@ -8,16 +8,18 @@ args = commandArgs(trailingOnly=TRUE)
 if (length(args) > 0) {
   sqlite_file <- args[1]
   con <- dbConnect(RSQLite::SQLite(), sqlite_file)
-  
 } else {
-  stop("No sqlite file provided")
+  print("No sqlite file provided, assume defaults")
+  args = c("bench.sqlite", "remote")
+  sqlite_file <- args[1]
+  con <- dbConnect(RSQLite::SQLite(), sqlite_file)
 }
 
 combos <- dbGetQuery(con, "SELECT * FROM combos")
 casenames <- dbGetQuery(con, "SELECT casename FROM combos GROUP BY casename")
 toolnames <- dbGetQuery(con, "SELECT toolname FROM combos GROUP BY toolname")
 
-ml2lines <- function(ml) {
+ml2lines <- function(ml, casename) {
   lines = NULL
   last = 0
   for (i in seq_len(dim(ml)[1])) {
@@ -28,10 +30,22 @@ ml2lines <- function(ml) {
   return(lines)
 }
 
-draw_plot <- function(data) {
+draw_plot <- function(data, casename) {
   MY_COLORS <- c("green", "blue", "red", "magenta", "orange", "cyan", "pink", "gray", "orange", "black", "yellow","brown")
   LEGEND_POS="bottomright"
 
+  ISNS_PER_US = (10**3)/(2**5)
+
+  # Convert timestamp from microseconds to hours
+  for (n in seq_len(length(data))) {
+    data[[n]]$timestamp <- data[[n]]$timestamp / 3600000
+    data[[n]]$min <- data[[n]]$min / ISNS_PER_US
+    data[[n]]$max <- data[[n]]$max / ISNS_PER_US
+    data[[n]]$median <- data[[n]]$median / ISNS_PER_US
+    data[[n]]$mean <- data[[n]]$mean / ISNS_PER_US
+    data[[n]]$sdiv <- data[[n]]$sdiv / ISNS_PER_US
+  }
+
   # draw limits
   max_x <- max(sapply(data, function(tbl) max(tbl$timestamp, na.rm = TRUE)))
   max_y <- max(sapply(data, function(tbl) max(tbl$max, na.rm = TRUE)))
@@ -40,10 +54,10 @@ draw_plot <- function(data) {
   # plot setup
   h_ = 380
   w_ = h_*4/3
-  png(file=sprintf("test.png"), width=w_, height=h_)
+  png(file=sprintf("%s/sql_%s.png", args[2],casename), width=w_, height=h_)
   par(mar=c(4,4,1,1))
   par(oma=c(0,0,0,0))
-  plot(c(0,max_x),c(min_y,max_y), col='white', xlab="Time [h]", ylab="WCRT estimate [insn]", pch='.')
+  plot(c(0,max_x),c(min_y,max_y), col='white', xlab="Time [h]", ylab="WCRT estimate [us]", pch='.')
 
   # plot data
   for (n in seq_len(length(data))) {
@@ -64,8 +78,9 @@ draw_plot <- function(data) {
   dev.off()
 }
 
-for (c in casenames) {
-  tables <- dbGetQuery(con, sprintf("SELECT * FROM combos WHERE casename == '%s'", c))
+print(casenames[['casename']])
+for (cn in casenames[['casename']]) {
+  tables <- dbGetQuery(con, sprintf("SELECT * FROM combos WHERE casename == '%s'", cn[[1]]))
   table_list <- list()
   for (row in 1:nrow(tables)) {
     table_name <- tables[row, 'fullname']
@@ -73,7 +88,7 @@ for (c in casenames) {
     table_data <- dbGetQuery(con, sprintf("SELECT * FROM '%s'", table_name))
     table_list[[tool_name]] <- table_data
   }
-  draw_plot(table_list)
+  draw_plot(table_list, cn[[1]])
 }
 
 dbDisconnect(con)
diff --git a/fuzzers/FRET/src/fuzzer.rs b/fuzzers/FRET/src/fuzzer.rs
index b0dc07f92e..789b94619c 100644
--- a/fuzzers/FRET/src/fuzzer.rs
+++ b/fuzzers/FRET/src/fuzzer.rs
@@ -281,10 +281,11 @@ let run_client = |state: Option<_>, mut mgr, _core_id| {
         unsafe {
             #[cfg(feature = "fuzz_int")]
             {
+                libafl_interrupt_offsets=[[0;MAX_NUM_INTERRUPT];NUM_INTERRUPT_SOURCES];
                 for &c in &interrupt_config {
                     let (i,_) = c;
                     let name = format!("isr_{}_times",i);
-                    let input_bytes = input.parts_by_name(&name).next().map(|x| x.1.bytes()).unwrap_or(&[0u8; MAX_NUM_INTERRUPT*4]);
+                    let input_bytes = input.parts_by_name(&name).next().map(|x| x.1.bytes()).unwrap_or(&[]);
                     let t = input_bytes_to_interrupt_times(input_bytes, c);
                     for j in 0..t.len() {libafl_interrupt_offsets[i][j]=t[j];}
                     libafl_num_interrupts[i]=t.len();
diff --git a/fuzzers/FRET/src/systemstate/helpers.rs b/fuzzers/FRET/src/systemstate/helpers.rs
index 9a9afa87d9..f49bd0a39d 100644
--- a/fuzzers/FRET/src/systemstate/helpers.rs
+++ b/fuzzers/FRET/src/systemstate/helpers.rs
@@ -118,11 +118,12 @@ pub fn input_bytes_to_interrupt_times(buf: &[u8], config: (usize,u32)) -> Vec<u3
     // obey the minimum inter arrival time while maintaining the sort
     for i in 0..ret.len() {
         if ret[i]==0 {continue;}
-        for j in i+1..ret.len()-1 {
+        for j in i+1..ret.len() {
             if ret[j]-ret[i] < config.1 * QEMU_ISNS_PER_USEC {
                 // ret[j] = u32::saturating_add(ret[i],config.1 * QEMU_ISNS_PER_USEC);
                 ret[j] = 0; // remove the interrupt
                 ret.sort_unstable();
+                break;
             } else {break;}
         }
     }