diff --git a/scripts/runner.pl b/scripts/runner.pl
index 806997a..d2d0b57 100644
--- a/scripts/runner.pl
+++ b/scripts/runner.pl
@@ -86,7 +86,7 @@ sub trace {
     notify("Tracing $experiment...");
 
     system(
-        "$bochs_runner -V $fail_share/vgabios.bin -b $fail_share/BIOS-bochs-latest -1 -f $fail_trace -e $remote_builds_dir/$experiment/system.elf -i $remote_builds_dir/$experiment/system.iso -- -Wf,--start-symbol=fail_start_trace -Wf,--save-symbol=fail_start_trace -Wf,--end-symbol=fail_stop_trace -Wf,--state-file=$remote_builds_dir/$experiment/state -Wf,--trace-file=$remote_builds_dir/$experiment/trace.pb -Wf,--elf-file=$remote_builds_dir/$experiment/system.elf"
+"$bochs_runner -V $fail_share/vgabios.bin -b $fail_share/BIOS-bochs-latest -1 -f $fail_trace -e $remote_builds_dir/$experiment/system.elf -i $remote_builds_dir/$experiment/system.iso -- -Wf,--start-symbol=fail_start_trace -Wf,--save-symbol=fail_start_trace -Wf,--end-symbol=fail_stop_trace -Wf,--state-file=$remote_builds_dir/$experiment/state -Wf,--trace-file=$remote_builds_dir/$experiment/trace.pb -Wf,--elf-file=$remote_builds_dir/$experiment/system.elf"
     );
 
     # notify("Tracing $experiment complete.");
@@ -98,24 +98,26 @@ sub import_trace {
     notify("Importing $experiment trace...");
 
     system(
-        "$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i MemoryImporter -e $remote_builds_dir/$experiment/system.elf -v $experiment -b mem"
+"$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i MemoryImporter -e $remote_builds_dir/$experiment/system.elf -v $experiment -b mem"
     );
     system(
-        "$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i RegisterImporter -e $remote_builds_dir/$experiment/system.elf -v $experiment -b regs --flags"
+"$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i RegisterImporter -e $remote_builds_dir/$experiment/system.elf -v $experiment -b regs --flags"
     );
     system(
-        "$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i RegisterImporter -e $remote_builds_dir/$experiment/system.elf -v $experiment -b ip --no-gp --ip"
+"$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i RegisterImporter -e $remote_builds_dir/$experiment/system.elf -v $experiment -b ip --no-gp --ip"
     );
     system(
-        "$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i ElfImporter --objdump objdump -e $remote_builds_dir/$experiment/system.elf -v $experiment -b ip"
+"$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i ElfImporter --objdump objdump -e $remote_builds_dir/$experiment/system.elf -v $experiment -b ip"
     );
     system(
-        "$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i ElfImporter --objdump objdump -e $remote_builds_dir/$experiment/system.elf -v $experiment -b mem"
+"$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i ElfImporter --objdump objdump -e $remote_builds_dir/$experiment/system.elf -v $experiment -b mem"
     );
     system(
-        "$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i ElfImporter --objdump objdump -e $remote_builds_dir/$experiment/system.elf -v $experiment -b regs"
+"$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i ElfImporter --objdump objdump -e $remote_builds_dir/$experiment/system.elf -v $experiment -b regs"
+    );
+    system(
+"$fail_prune --database-option-file $remote_db_conf -v $experiment -b %% --overwrite"
     );
-    system( "$fail_prune --database-option-file $remote_db_conf -v $experiment -b %% --overwrite" );
 
     # notify("Importing $experiment trace complete.");
 }
@@ -132,17 +134,17 @@ sub inject {
 
         # child -> server
         exec(
-            "$fail_server --port $fail_server_port --database-option-file $remote_db_conf -v $experiment -b % --inject-single-bit --inject-registers"
+"$fail_server --port $fail_server_port --database-option-file $remote_db_conf -v $experiment -b % --inject-single-bit --inject-registers"
         ) or die "exec server failed: $!";
     }
 
     # parent -> client
-    # my $count = cpu_count();
-    my $count = 1;
+    # my $count = 1;
+    my $count = cpu_count();
 
-        # "-Wf,--catch-write-textsegment",
+    # "-Wf,--catch-write-textsegment",
     system(
-        "nice $bochs_runner -V $fail_share/vgabios.bin -b $fail_share/BIOS-bochs-latest -f $fail_inject -e $remote_builds_dir/$experiment/system.elf -i $remote_builds_dir/$experiment/system.iso -j $count -- -Wf,--server-port=$fail_server_port -Wf,--state-dir=$remote_builds_dir/$experiment/state -Wf,--trap -Wf,--catch-outerspace -Wf,--timeout=500000 -Wf,--ok-marker=fail_marker_positive -Wf,--fail-marker=fail_marker_negative -Wf,--detected-marker=fail_marker_detected > /dev/null"
+"nice $bochs_runner -V $fail_share/vgabios.bin -b $fail_share/BIOS-bochs-latest -f $fail_inject -e $remote_builds_dir/$experiment/system.elf -i $remote_builds_dir/$experiment/system.iso -j $count -- -Wf,--server-port=$fail_server_port -Wf,--state-dir=$remote_builds_dir/$experiment/state -Wf,--trap -Wf,--catch-outerspace -Wf,--timeout=500000 -Wf,--ok-marker=fail_marker_positive -Wf,--fail-marker=fail_marker_negative -Wf,--detected-marker=fail_marker_detected > /dev/null"
     ) or die "client failed: $?";
 
     kill 'TERM', $pid;