diff --git a/fuzzers/FRET/benchmark/Snakefile b/fuzzers/FRET/benchmark/Snakefile
index d0464dfd76..0a800cc5b6 100644
--- a/fuzzers/FRET/benchmark/Snakefile
+++ b/fuzzers/FRET/benchmark/Snakefile
@@ -1,6 +1,6 @@
 import csv
 import os
-def_flags="--no-default-features --features std,snapshot_fast,singlecore,restarting,do_hash_notify_state,trace_job_response_times"
+def_flags="--no-default-features --features std,snapshot_fast,singlecore,restarting,do_hash_notify_state,trace_job_response_times,fuzz_int"
 remote="remote/"
 RUNTIME=1800
 TARGET_REPS_A=2
@@ -48,79 +48,24 @@ rule build_stgpath:
     shell:
         "cargo build --target-dir {output} {def_flags},feed_stg_abbhash,sched_stg_abbhash,mutate_stg"
 
-rule build_showmap_int:
-    output:
-        directory("bins/target_showmap_int")
-    shell:
-        "cargo build --target-dir {output} {def_flags},config_stg,fuzz_int"
-
-rule build_random_int:
-    output:
-        directory("bins/target_random_int")
-    shell:
-        "cargo build --target-dir {output} {def_flags},feed_longest,fuzz_int"
-
-
-rule build_frafl_int:
-    output:
-        directory("bins/target_frafl_int")
-    shell:
-        "cargo build --target-dir {output} {def_flags},config_frafl,fuzz_int"
-
-rule build_afl_int:
-    output:
-        directory("bins/target_afl_int")
-    shell:
-        "cargo build --target-dir {output} {def_flags},config_afl,fuzz_int,"
-
-rule build_stg_int:
-    output:
-        directory("bins/target_stg_int")
-    shell:
-        "cargo build --target-dir {output} {def_flags},config_stg,fuzz_int"
-
-rule build_stgpath_int:
-    output:
-        directory("bins/target_stgpath_int")
-    shell:
-        "cargo build --target-dir {output} {def_flags},feed_stg_abbhash,sched_stg_abbhash,mutate_stg,fuzz_int"
-
 rule build_feedgeneration1:
     output:
         directory("bins/target_feedgeneration1")
     shell:
         "cargo build --target-dir {output} {def_flags},feed_genetic,gensize_1"
 
-rule build_feedgeneration1_int:
-    output:
-        directory("bins/target_feedgeneration1_int")
-    shell:
-        "cargo build --target-dir {output} {def_flags},feed_genetic,fuzz_int,gensize_1"
-
 rule build_feedgeneration10:
     output:
         directory("bins/target_feedgeneration10")
     shell:
         "cargo build --target-dir {output} {def_flags},feed_genetic,gensize_10"
 
-rule build_feedgeneration10_int:
-    output:
-        directory("bins/target_feedgeneration10_int")
-    shell:
-        "cargo build --target-dir {output} {def_flags},feed_genetic,fuzz_int,gensize_10"
-
 rule build_feedgeneration100:
     output:
         directory("bins/target_feedgeneration100")
     shell:
         "cargo build --target-dir {output} {def_flags},config_genetic,gensize_100"
 
-rule build_feedgeneration100_int:
-    output:
-        directory("bins/target_feedgeneration100_int")
-    shell:
-        "cargo build --target-dir {output} {def_flags},config_genetic,fuzz_int,gensize_100"
-
 rule run_bench:
     input:
         "build/{target}.elf",
@@ -163,7 +108,6 @@ rule run_showmap:
     input:
         "{remote}build/{target}.elf",
         "bins/target_showmap",
-        "bins/target_showmap_int",
         "{remote}timedump/{fuzzer}/{target}#{num}.case"
     output:
         "{remote}timedump/{fuzzer}/{target}#{num}_case.trace.ron",
@@ -180,16 +124,12 @@ rule run_showmap:
             fuzz_len=line['input_size']
             bkp=line['return_function']
             select_task=line['select_task']
-            script=""
-            if wildcards.fuzzer.find('_int') > -1:
-                script="export FUZZER=$(pwd)/{input[2]}/debug/fret\n"
-            else:
-                script="export FUZZER=$(pwd)/{input[1]}/debug/fret\n"
             script+="""
+                export FUZZER=$(pwd)/{input[1]}/debug/fret
                 mkdir -p $(dirname {output})
                 set +e
-                echo $FUZZER -n $(pwd)/{remote}/timedump/{wildcards.fuzzer}/{wildcards.target}#{wildcards.num}_case -s {select_task} -t -a -r -g -k {input[0]} -c ./target_symbols.csv showmap -i {input[3]}
-                $FUZZER -n $(pwd)/{remote}/timedump/{wildcards.fuzzer}/{wildcards.target}#{wildcards.num}_case -s {select_task} -t -a -r -g -k {input[0]} -c ./target_symbols.csv showmap -i {input[3]}
+                echo $FUZZER -n $(pwd)/{remote}/timedump/{wildcards.fuzzer}/{wildcards.target}#{wildcards.num}_case -s {select_task} -t -a -r -g -k {input[0]} -c ./target_symbols.csv showmap -i {input[2]}
+                $FUZZER -n $(pwd)/{remote}/timedump/{wildcards.fuzzer}/{wildcards.target}#{wildcards.num}_case -s {select_task} -t -a -r -g -k {input[0]} -c ./target_symbols.csv showmap -i {input[2]}
                 exit 0
                 """
             if wildcards.fuzzer.find('random') >= 0:
@@ -220,7 +160,7 @@ rule all_main:
 
 rule all_main_int:
     input:
-        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['random_int','afl_int','feedgeneration10_int','state_int'], target=['waters_int','watersv2_int'],num=range(0,4))
+        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['random','afl','feedgeneration10','state'], target=['waters_int','watersv2_int'],num=range(0,4))
 
 rule all_compare_feedgeneration:
     input:
@@ -228,7 +168,7 @@ rule all_compare_feedgeneration:
 
 rule all_compare_feedgeneration_int:
     input:
-        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['feedgeneration1_int','feedgeneration10_int','feedgeneration100_int'], target=['waters_int','watersv2_int'],num=range(0,10))
+        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['feedgeneration1','feedgeneration10','feedgeneration100'], target=['waters_int','watersv2_int'],num=range(0,10))
 
 rule all_compare_afl:
     input:
@@ -236,7 +176,7 @@ rule all_compare_afl:
 
 rule all_compare_afl_int:
     input:
-        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['afl_int','frafl_int','feedlongest_int'], target=['waters_int','watersv2_int'],num=range(0,10))
+        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['afl','frafl','feedlongest'], target=['waters_int','watersv2_int'],num=range(0,10))
 
 rule all_images:
     input:
@@ -244,35 +184,35 @@ rule all_images:
 
 rule all_images_int:
     input:
-        expand("{remote}timedump/{fuzzer}/{target}.{num}.trace.csv.png",remote=remote, fuzzer=['frafl_int','feedgeneration10_int','state_int'], target=['waters_int'],num=range(0,3))
+        expand("{remote}timedump/{fuzzer}/{target}.{num}.trace.csv.png",remote=remote, fuzzer=['frafl','feedgeneration10','state'], target=['waters_int'],num=range(0,3))
 
 rule clusterfuzz:
     input:
         expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['random','afl','feedgeneration10','state'], target=['waters','watersv2'],num=MY_RANGE_A),
-        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['random_int','afl_int','feedgeneration10_int','state_int'], target=['waters_int','watersv2_int'],num=MY_RANGE_A),
+        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['random','afl','feedgeneration10','state'], target=['waters_int','watersv2_int'],num=MY_RANGE_A),
         expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['feedgeneration1','feedgeneration10','feedgeneration100'], target=['waters_int','watersv2'],num=MY_RANGE_B),
-        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['feedgeneration1_int','feedgeneration10_int','feedgeneration100_int'], target=['waters_int','watersv2_int'],num=MY_RANGE_B),
+        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['feedgeneration1','feedgeneration10','feedgeneration100'], target=['waters_int','watersv2_int'],num=MY_RANGE_B),
         expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['afl','frafl','feedlongest'], target=['waters','watersv2'],num=MY_RANGE_B),
-        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['afl_int','frafl_int','feedlongest_int'], target=['waters_int','watersv2_int'],num=MY_RANGE_B),
+        expand("timedump/{fuzzer}/{target}.{num}", fuzzer=['afl','frafl','feedlongest'], target=['waters_int','watersv2_int'],num=MY_RANGE_B),
 
 rule all_new:
     input:
         expand("timedump/{fuzzer}/{target}#{num}.time", fuzzer=['feedgeneration100', 'frafl', 'stg'], target=['waters', 'watersv2', 'waterspart', 'waterspartv2'],num=range(0,2)),
-        expand("timedump/{fuzzer}/{target}#{num}.time", fuzzer=['feedgeneration100_int', 'frafl_int', 'stg_int'], target=['waters_int', 'watersv2_int', 'waterspart_int', 'waterspartv2_int'],num=range(0,2)),
+        expand("timedump/{fuzzer}/{target}#{num}.time", fuzzer=['feedgeneration100', 'frafl', 'stg'], target=['waters_int', 'watersv2_int', 'waterspart_int', 'waterspartv2_int'],num=range(0,2)),
         # expand("timedump/{fuzzer}/{target}#{num}.time", fuzzer=['random', 'stgpath'], target=['waters', 'watersv2'],num=range(0,3)),
         # expand("timedump/{fuzzer}/{target}#{num}.time", fuzzer=['random_int', 'stgpath_int'], target=['waters_int', 'watersv2_int'],num=range(0,3))
 
 rule all_showmap:
     input:
         expand("{remote}timedump/{fuzzer}/{target}#{num}_case.trace.ron",remote=remote, fuzzer=['frafl', 'stg'], target=['watersv2'],num=range(2,3)),
-        expand("{remote}timedump/{fuzzer}/{target}#{num}_case.trace.ron",remote=remote, fuzzer=['frafl_int', 'stg_int'], target=['watersv2_int'],num=range(0,3)),
+        expand("{remote}timedump/{fuzzer}/{target}#{num}_case.trace.ron",remote=remote, fuzzer=['frafl', 'stg'], target=['watersv2_int'],num=range(0,3)),
         expand("{remote}timedump/{fuzzer}/{target}#{num}_case.trace.ron",remote=remote, fuzzer=['random', 'stgpath'], target=['watersv2'],num=range(0,1)),
-        expand("{remote}timedump/{fuzzer}/{target}#{num}_case.trace.ron",remote=remote, fuzzer=['random_int', 'stgpath_int'], target=['watersv2_int'],num=range(0,1))
+        expand("{remote}timedump/{fuzzer}/{target}#{num}_case.trace.ron",remote=remote, fuzzer=['random', 'stgpath'], target=['watersv2_int'],num=range(0,1))
 
 rule quicktest:
     input:
-        expand("timedump/{fuzzer}/{target}#{num}.time", fuzzer=['feedgeneration100_int', 'frafl_int', 'stg_int'], target=['release'],num=range(0,1)),
-        expand("timedump/{fuzzer}/{target}#{num}.time", fuzzer=['random_int', 'stgpath_int'], target=['release'],num=range(0,1))
+        expand("timedump/{fuzzer}/{target}#{num}.time", fuzzer=['feedgeneration100', 'frafl', 'stg'], target=['release'],num=range(0,1)),
+        expand("timedump/{fuzzer}/{target}#{num}.time", fuzzer=['random', 'stgpath'], target=['release'],num=range(0,1))
 
     
 
diff --git a/fuzzers/FRET/benchmark/build_all_bins.sh b/fuzzers/FRET/benchmark/build_all_bins.sh
index 6aa040c771..97348af343 100644
--- a/fuzzers/FRET/benchmark/build_all_bins.sh
+++ b/fuzzers/FRET/benchmark/build_all_bins.sh
@@ -6,15 +6,7 @@ cargo build --target-dir ./bins/target_frafl ${def_flags},config_frafl,feed_long
 cargo build --target-dir ./bins/target_afl ${def_flags},config_afl,observe_hitcounts
 cargo build --target-dir ./bins/target_stg ${def_flags},config_stg
 cargo build --target-dir ./bins/target_stgpath ${def_flags},feed_stg_abbhash,sched_stg_abbhash,mutate_stg
-cargo build --target-dir ./bins/target_showmap_int ${def_flags},config_stg,fuzz_int
-cargo build --target-dir ./bins/target_random_int ${def_flags},feed_longest,fuzz_int
-cargo build --target-dir ./bins/target_afl_int ${def_flags},config_frafl,fuzz_int
-cargo build --target-dir ./bins/target_stg_int ${def_flags},config_stg,fuzz_int
-cargo build --target-dir ./bins/target_stgpath_int ${def_flags},feed_stg_abbhash,sched_stg_abbhash,mutate_stg,fuzz_int
 cargo build --target-dir ./bins/target_feedgeneration1 ${def_flags},feed_genetic,gensize_1
-cargo build --target-dir ./bins/target_feedgeneration1_int ${def_flags},feed_genetic,fuzz_int,gensize_1
 cargo build --target-dir ./bins/target_feedgeneration10 ${def_flags},feed_genetic,gensize_10
-cargo build --target-dir ./bins/target_feedgeneration10_int ${def_flags},feed_genetic,fuzz_int,gensize_10
 cargo build --target-dir ./bins/target_feedgeneration100 ${def_flags},feed_genetic,gensize_100
-cargo build --target-dir ./bins/target_feedgeneration100_int ${def_flags},feed_genetic,fuzz_int,gensize_100
 
diff --git a/fuzzers/FRET/benchmark/target_symbols.csv b/fuzzers/FRET/benchmark/target_symbols.csv
index 0aa5ba0260..1025290423 100644
--- a/fuzzers/FRET/benchmark/target_symbols.csv
+++ b/fuzzers/FRET/benchmark/target_symbols.csv
@@ -1,34 +1,34 @@
 kernel,main_function,input_symbol,input_size,return_function,select_task,interrupts
-mpeg2,mpeg2_main,mpeg2_oldorgframe,90112,mpeg2_return,NONE,0#1000
-audiobeam,audiobeam_main,audiobeam_input,11520,audiobeam_return,NONE,0#1000
-epic,epic_main,epic_image,4096,epic_return,NONE,0#1000
-dijkstra,dijkstra_main,dijkstra_AdjMatrix,10000,dijkstra_return,NONE,0#1000
-fft,fft_main,fft_twidtable,2046,fft_return,NONE,0#1000
-bsort,bsort_main,bsort_Array,400,bsort_return,NONE,0#1000
-insertsort,insertsort_main,insertsort_a,400,insertsort_return,NONE,0#1000
-g723_enc,g723_enc_main,g723_enc_INPUT,1024,g723_enc_return,NONE,0#1000
-rijndael_dec,rijndael_dec_main,rijndael_dec_data,32768,rijndael_dec_return,NONE,0#1000
-rijndael_enc,rijndael_enc_main,rijndael_enc_data,31369,rijndael_enc_return,NONE,0#1000
-huff_dec,huff_dec_main,huff_dec_encoded,419,huff_dec_return,NONE,0#1000
-huff_enc,huff_enc_main,huff_enc_plaintext,600,huff_enc_return,NONE,0#1000
-gsm_enc,gsm_enc_main,gsm_enc_pcmdata,6400,gsm_enc_return,NONE,0#1000
-tmr,main,FUZZ_INPUT,32,trigger_Qemu_break,NONE,0#1000
-tacle_rtos,prvStage0,FUZZ_INPUT,604,trigger_Qemu_break,NONE,0#1000
-lift,main_lift,FUZZ_INPUT,100,trigger_Qemu_break,NONE,0#1000
-waters,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,0#1000
-watersv2,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,0#1000
-waterspart,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,0#1000
-waterspartv2,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,0#1000
+mpeg2,mpeg2_main,mpeg2_oldorgframe,90112,mpeg2_return,NONE,
+audiobeam,audiobeam_main,audiobeam_input,11520,audiobeam_return,NONE,
+epic,epic_main,epic_image,4096,epic_return,NONE,
+dijkstra,dijkstra_main,dijkstra_AdjMatrix,10000,dijkstra_return,NONE,
+fft,fft_main,fft_twidtable,2046,fft_return,NONE,
+bsort,bsort_main,bsort_Array,400,bsort_return,NONE,
+insertsort,insertsort_main,insertsort_a,400,insertsort_return,NONE,
+g723_enc,g723_enc_main,g723_enc_INPUT,1024,g723_enc_return,NONE,
+rijndael_dec,rijndael_dec_main,rijndael_dec_data,32768,rijndael_dec_return,NONE,
+rijndael_enc,rijndael_enc_main,rijndael_enc_data,31369,rijndael_enc_return,NONE,
+huff_dec,huff_dec_main,huff_dec_encoded,419,huff_dec_return,NONE,
+huff_enc,huff_enc_main,huff_enc_plaintext,600,huff_enc_return,NONE,
+gsm_enc,gsm_enc_main,gsm_enc_pcmdata,6400,gsm_enc_return,NONE,
+tmr,main,FUZZ_INPUT,32,trigger_Qemu_break,NONE,
+tacle_rtos,prvStage0,FUZZ_INPUT,604,trigger_Qemu_break,NONE,
+lift,main_lift,FUZZ_INPUT,100,trigger_Qemu_break,NONE,
+waters,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,
+watersv2,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,
+waterspart,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,
+waterspartv2,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,
 waters_int,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,0#1000
 watersv2_int,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,0#1000
 waterspart_int,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,0#1000
 waterspartv2_int,main_waters,FUZZ_INPUT,4096,trigger_Qemu_break,1129,0#1000
-micro_branchless,main_branchless,FUZZ_INPUT,4,trigger_Qemu_break,NONE,0#1000
+micro_branchless,main_branchless,FUZZ_INPUT,4,trigger_Qemu_break,NONE,
 micro_int,main_int,FUZZ_INPUT,16,trigger_Qemu_break,NONE,0#1000
 micro_longint,main_micro_longint,FUZZ_INPUT,16,trigger_Qemu_break,NONE,0#1000
 minimal,main_minimal,FUZZ_INPUT,4096,trigger_Qemu_break,NONE,0#1000
 gen3,main_minimal,FUZZ_INPUT,4096,trigger_Qemu_break,NONE,0#1000
-interact,main_interact,FUZZ_INPUT,4096,trigger_Qemu_break,NONE,0#1000
+interact,main_interact,FUZZ_INPUT,4096,trigger_Qemu_break,NONE,
 interact_int,main_interact,FUZZ_INPUT,4096,trigger_Qemu_break,NONE,0#1000
-release,main_release,FUZZ_INPUT,4096,trigger_Qemu_break,T3,0#10000;1#1000;2#2000;3#3000
+release,main_release,FUZZ_INPUT,4096,trigger_Qemu_break,T3,0#10000;1#5000;2#2000;3#3000
 
diff --git a/fuzzers/FRET/src/systemstate/mutational.rs b/fuzzers/FRET/src/systemstate/mutational.rs
index 1f5187d486..71f4909e4e 100644
--- a/fuzzers/FRET/src/systemstate/mutational.rs
+++ b/fuzzers/FRET/src/systemstate/mutational.rs
@@ -131,6 +131,7 @@ where
         state: &mut Self::State,
         manager: &mut EM
     ) -> Result<(), Error> {
+        if self.interrup_config.len() == 0 {return Ok(());} // configuration implies no interrupts
         let mut myrand = StdRand::new();
         myrand.set_seed(state.rand_mut().next());