diff --git a/building/main.cpp b/building/main.cpp
index e3b5906..8fe329f 100644
--- a/building/main.cpp
+++ b/building/main.cpp
@@ -14,7 +14,7 @@ struct Libregexis024BuildSystem {
         "-Wno-unused-but-set-variable", "-Wno-reorder"};
     std::vector<std::string> version_flags = {"--std", "c++14", "-D", "_POSIX_C_SOURCE=200809L"};
 
-    std::vector<std::string> debug_defines_release = {"_GLIBCXX_DEBUG"};
+    std::vector<std::string> debug_defines_release = {};
     std::vector<std::string> debug_defines_debug = {"_GLIBCXX_DEBUG", "LIBREGEXIS024_DEBUG", "LIBREGEXIS024_ALLOW_LOUD"};
     std::vector<std::string> opt_flags_release = {"-g", "-O2"};
     std::vector<std::string> opt_flags_debug = {"-g", "-ggdb", "-O0"};
@@ -79,6 +79,7 @@ struct Libregexis024BuildSystem {
                 "libregexis024sol/expr_parse_functions/command_recognition.cpp",
 
                 "libregexis024tools/stringmatching.cpp",
+                "libregexis024tools/delayed_matching.cpp",
             };
 
             /* These are added to compilation_units_of_release */
@@ -102,6 +103,7 @@ struct Libregexis024BuildSystem {
                 "libregexis024sol/expr_compiler.h",
 
                 "libregexis024tools/stringmatching.h",
+                "libregexis024tools/delayed_matching.h",
             };
 
             CTarget T{"libregexis024", "shared_library"};
@@ -131,14 +133,14 @@ struct Libregexis024BuildSystem {
 
 int main(int argc, char** argv) {
     try {
-        assert(argc > 0);
+        ASSERT_pl(argc > 0);
         std::vector<std::string> args(argc - 1);
         for (int i = 0; i + 1 < argc; i++) {
             args[i] = argv[i + 1];
         }
         NormalCBuildSystemCommandMeaning cmd;
         regular_bs_cli_cmd_interpret(args, cmd);
-        Libregexis024BuildSystem bs("debug", cmd);
+        Libregexis024BuildSystem bs("release", cmd);
         if (cmd.need_to_build)
             complete_tasks_of_build_units(bs.runlevel_1);
         if (cmd.need_to_install)
diff --git a/src/debugging_regexis024/debug_through_graphviz.cpp b/src/debugging_regexis024/debug_through_graphviz.cpp
index 811a7d2..4cf252e 100644
--- a/src/debugging_regexis024/debug_through_graphviz.cpp
+++ b/src/debugging_regexis024/debug_through_graphviz.cpp
@@ -198,7 +198,7 @@ namespace regexis024 {
 
         std::string infoText;
         for (auto& p: ktr.track_names){
-            const SubtrackingNameInfo& tu = ktr.retrieval_info[p.second];
+            const SubtrackingNameUsageInfo& tu = ktr.retrieval_info[p.second];
 
             auto getRole = [](bool presence, tracking_var_type_t type, int first, int second,
                     const std::string&  ARR_NAME) -> std::string {
diff --git a/src/libregexis024fa/graph_to_bytecode/natural_compiler_utils.h b/src/libregexis024fa/graph_to_bytecode/natural_compiler_utils.h
index f10b41b..8dc9c84 100644
--- a/src/libregexis024fa/graph_to_bytecode/natural_compiler_utils.h
+++ b/src/libregexis024fa/graph_to_bytecode/natural_compiler_utils.h
@@ -4,6 +4,8 @@
 #include <stdint.h>
 #include <libregexis024vm/vm_opcodes_types.h>
 #include <vector>
+#include <stddef.h>
+
 namespace regexis024 {
     void write_byte(std::vector<uint8_t>& result, uint8_t x);
     void write_word(std::vector<uint8_t>& result, uint16_t x);
diff --git a/src/libregexis024fa/tracking_variables.h b/src/libregexis024fa/tracking_variables.h
index a882adb..2fa17f7 100644
--- a/src/libregexis024fa/tracking_variables.h
+++ b/src/libregexis024fa/tracking_variables.h
@@ -1,6 +1,9 @@
 #ifndef LIBREGEXIS024_SRC_LIBREGEXIS024FA_TRACKING_VARIABLES_H
 #define LIBREGEXIS024_SRC_LIBREGEXIS024FA_TRACKING_VARIABLES_H
 
+#include <map>
+#include <string>
+
 namespace regexis024 {
     namespace tracking_var_types {
         enum tracking_var_type_I {
@@ -11,6 +14,21 @@ namespace regexis024 {
     }
 
     typedef tracking_var_types::tracking_var_type_I tracking_var_type_t;
+
+    struct TrackingVariableInfo {
+        bool stored_in_ca = true;
+        bool stored_in_sa = false;
+
+        tracking_var_type_t type;
+        /* These fields will be -1 if unused */
+        int colarr_first = -1;
+        int colarr_second = -1;
+
+        int selarr_first = -1;
+        int selarr_second = -1;
+    };
+
+    typedef std::map<std::string, TrackingVariableInfo> track_var_list;
 }
 
 #endif
diff --git a/src/libregexis024sol/expr_compiler.cpp b/src/libregexis024sol/expr_compiler.cpp
index 0f296b2..e65ce11 100644
--- a/src/libregexis024sol/expr_compiler.cpp
+++ b/src/libregexis024sol/expr_compiler.cpp
@@ -138,7 +138,7 @@ namespace regexis024 {
     chekushka BracketLvl_ParseCall::firstTime(REGEX_IS024_MeaningContext& ctx, ParsingContext& pctx, FA_Container& fa) {
         result.assertDefault();
         assert(readChar(ctx) == U'(');
-        /* sequence lvl already took care about resolving name and configuring SubtrackingNameInfo */
+        /* sequence lvl already took care about resolving name and configuring SubtrackingNameUsageInfo */
         if (namedSubexpressionId >= 0){
             assert(ctx.ktr.retrieval_info[namedSubexpressionId].type == tracking_var_types::range);
             if (ctx.ktr.retrieval_info[namedSubexpressionId].stored_in_sa){
@@ -157,7 +157,7 @@ namespace regexis024 {
         readChar(ctx);
         result = tmp_ret_buff;
         if (namedSubexpressionId >= 0) {
-            SubtrackingNameInfo& tai_slots = ctx.ktr.retrieval_info[namedSubexpressionId];
+            SubtrackingNameUsageInfo& tai_slots = ctx.ktr.retrieval_info[namedSubexpressionId];
             if (tai_slots.stored_in_ca){
                 assert(tai_slots.colarr_first >= 0 && tai_slots.colarr_first < UINT16_MAX);
                 assert(tai_slots.colarr_second >= 0 && tai_slots.colarr_second < UINT16_MAX);
@@ -214,7 +214,7 @@ namespace regexis024 {
             }
         }
         /* Generating priority table (sifting program) */
-        for (const SubtrackingNameInfo& sni: ctx.ktr.retrieval_info) {
+        for (const SubtrackingNameUsageInfo& sni: ctx.ktr.retrieval_info) {
             if (!sni.discovered)
                 aux_THROW("tracking tool named in !select is not used anywhere");
             if (sni.used_in_sifting) {
diff --git a/src/libregexis024sol/expr_parse_functions/tracking_units.cpp b/src/libregexis024sol/expr_parse_functions/tracking_units.cpp
index 148d048..e33735a 100644
--- a/src/libregexis024sol/expr_parse_functions/tracking_units.cpp
+++ b/src/libregexis024sol/expr_parse_functions/tracking_units.cpp
@@ -20,7 +20,7 @@ report(ctx, ("regex: " + ARR_NAME + ": key namespace overflow").c_str()); return
     void ensure_space_for_track_unit(REGEX_IS024_MeaningContext &ctx, const std::string& name, tracking_var_type_t type) {
         size_t id = ctx.ktr.track_names[name];
         /* Size of this verctor won't be changed. THis is a safe reference */
-        SubtrackingNameInfo& info = ctx.ktr.retrieval_info[id];
+        SubtrackingNameUsageInfo& info = ctx.ktr.retrieval_info[id];
         if (!info.discovered){
             info.type = type;
             if (info.stored_in_ca) {
diff --git a/src/libregexis024sol/part_of_expr_that_tracks.h b/src/libregexis024sol/part_of_expr_that_tracks.h
index 7faf007..85ce883 100644
--- a/src/libregexis024sol/part_of_expr_that_tracks.h
+++ b/src/libregexis024sol/part_of_expr_that_tracks.h
@@ -7,7 +7,7 @@
 #include <libregexis024fa/tracking_variables.h>
 
 namespace regexis024 {
-    struct SubtrackingNameInfo{
+    struct SubtrackingNameUsageInfo: public TrackingVariableInfo{
         bool stored_in_ca = true;
         bool stored_in_sa = false;
 
@@ -25,7 +25,7 @@ namespace regexis024 {
 
     struct KnownTrackingTools {
         std::map<std::string, int64_t> track_names;
-        std::vector<SubtrackingNameInfo> retrieval_info;
+        std::vector<SubtrackingNameUsageInfo> retrieval_info;
     };
 }
 
diff --git a/src/libregexis024sol/subexpr_fa_transformed.cpp b/src/libregexis024sol/subexpr_fa_transformed.cpp
index 6e9f052..51b1bc1 100644
--- a/src/libregexis024sol/subexpr_fa_transformed.cpp
+++ b/src/libregexis024sol/subexpr_fa_transformed.cpp
@@ -76,7 +76,6 @@ namespace regexis024 {
         assert(patient.start);
         for (FA_Node** end: patient.ends){
             assert(!(*end));
-            printf("DEBUG %lu->->->->->%lu\n", patient.start->nodeId, node->nodeId);
             reattach_fa_node_edge(end, node);
         }
     }
diff --git a/src/libregexis024test/test4.cpp b/src/libregexis024test/test4.cpp
index 222ed00..8524331 100644
--- a/src/libregexis024test/test4.cpp
+++ b/src/libregexis024test/test4.cpp
@@ -2,6 +2,7 @@
 #include <assert.h>
 #include <stdexcept>
 #include <libregexis024sol/expr_compiler.h>
+#include <libregexis024tools/delayed_matching.h>
 
 using namespace regexis024;
 using namespace std;
@@ -20,13 +21,45 @@ void test(const string& input, const string& pattern, const MatchInfo& right_ans
     printf("Test passed\n");
 }
 
+void boba(const vector<pair<string, bool>>& input, const string& pattern) {
+    std::vector<uint8_t> regexp_program;
+    std::map<std::string, TrackingVariableInfo> variables;
+    std::string error;
+    int ret = compile(pattern, variables, regexp_program, error);
+    if (ret < 0) {
+        throw runtime_error("Compilation failure " + error);
+    }
+    VirtualMachine vm(regexp_program.size(), regexp_program.data(),
+            UINT64_MAX, UINT16_MAX,
+            UINT32_MAX, UINT32_MAX, UINT64_MAX);
+    if (vm.initialize() < 0) {
+        throw runtime_error("Can't initialize");
+    }
+    for (int i = 0;  i < 3; i++) {
+        for (auto& inp: input) {
+            vm.wipeToInit();
+            if (vm.addNewMatchingThread() < 0)
+                throw runtime_error("addNewMatchingThread");
+            for (char ch: inp.first) {
+                if (vm.feedCharacter(ch, 1) < 0)
+                    throw runtime_error("feedCharacter");
+            }
+            if (vm.isMatched() != inp.second)
+                throw runtime_error("AAAAAAAAAAAAAAAA");
+        }
+    }
+}
+
 int main() {
+    boba({{"", true}, {"a", false}}, "");
+    boba({{"", true}, {"a", true}, {"aab", true}, {"aac", false}, {"c", false}, {"abbababa", true}}, "[ab]*");
+    test("", "", MatchInfo({}, {}));
+    test("a", "a", MatchInfo({}, {}));
+    test("1b", "1\\<b", MatchInfo({}, {}));
     test("bababbaa", "[ab]*", MatchInfo({}, {}));
     test("bababbaa", "!dfa;[ab]*", MatchInfo({}, {}));
     test("d3", "[abc]3", MatchInfo());
     test("a3", "[abc]3", MatchInfo({}, {}));
-    test("", "", MatchInfo({}, {}));
-    test("a", "a", MatchInfo({}, {}));
     test("abba", "!select{M{max}}a#M(b*)a", MatchInfo({}, {1, 3}));
 
     test("LINE\r\nFirst:Second\r\nThird:12\r\n\r\n",
diff --git a/src/libregexis024tools/delayed_matching.cpp b/src/libregexis024tools/delayed_matching.cpp
new file mode 100644
index 0000000..10fa79f
--- /dev/null
+++ b/src/libregexis024tools/delayed_matching.cpp
@@ -0,0 +1,19 @@
+#include "delayed_matching.h"
+#include <libregexis024sol/expr_compiler.h>
+
+namespace regexis024 {
+    int compile(const std::string& regexp, track_var_list &ret_track_var_list, std::vector<uint8_t> &ret_program,
+        std::string &ret_message) {
+        ret_message.clear();
+        REGEX_IS024_MeaningContext cmp_ctx(regexp.size(), regexp.data());
+        if (cmp_ctx.error) {
+            ret_message = std::move(cmp_ctx.error_msg);
+            return -1;
+        }
+        ret_program = std::move(cmp_ctx.compiled_program);
+        ret_track_var_list.clear();
+        for (auto& iip: cmp_ctx.ktr.track_names)
+            ret_track_var_list[iip.first] = (TrackingVariableInfo)cmp_ctx.ktr.retrieval_info[iip.second];
+        return 0;
+    }
+}
diff --git a/src/libregexis024tools/delayed_matching.h b/src/libregexis024tools/delayed_matching.h
new file mode 100644
index 0000000..bf289bd
--- /dev/null
+++ b/src/libregexis024tools/delayed_matching.h
@@ -0,0 +1,13 @@
+#ifndef LIBREGEXIS024_SRC_LIBREGEXIS024TOOLS_DELAYED_MATCHING_H
+#define LIBREGEXIS024_SRC_LIBREGEXIS024TOOLS_DELAYED_MATCHING_H
+
+#include <libregexis024fa/tracking_variables.h>
+#include <stdint.h>
+#include <vector>
+
+namespace regexis024 {
+    int compile(const std::string& regexp, track_var_list& ret_track_var_list, std::vector<uint8_t>& ret_program,
+        std::string& ret_message);
+}
+
+#endif
diff --git a/src/libregexis024tools/stringmatching.cpp b/src/libregexis024tools/stringmatching.cpp
index f24fbee..a5a7cf4 100644
--- a/src/libregexis024tools/stringmatching.cpp
+++ b/src/libregexis024tools/stringmatching.cpp
@@ -5,36 +5,21 @@
 #include <libregexis024sol/utils.h>
 #include <assert.h>
 
-// using namespace regexis024;
-
 namespace regexis024 {
-    void convert(TrackingVariableInfo& to, const SubtrackingNameInfo& from) {
-#define plagiat(field) to.field = from.field;
-        plagiat(type);
-        plagiat(colarr_first);
-        plagiat(colarr_second);
-        plagiat(stored_in_ca);
-        plagiat(selarr_first);
-        plagiat(selarr_second);
-        plagiat(stored_in_sa);
-#undef plagiat
-    }
-
     int matchStrToRegexp(const std::string& input, const std::string& pattern,
             MatchInfo& retMatchInfo, track_var_list& retTrackVarList, std::string& retStatus)
     {
         retTrackVarList = {};
         retMatchInfo = MatchInfo();
-        retStatus = "";
+        retStatus.clear();
         REGEX_IS024_MeaningContext regexp(pattern.size(), pattern.data());
         if (regexp.error) {
             retStatus = "Pattern compilation. " + regexp.error_msg;
             return -1;
         }
         retTrackVarList = {};
-        for (auto& iip: regexp.ktr.track_names) {
-            convert(retTrackVarList[iip.first], regexp.ktr.retrieval_info[iip.second]);
-        }
+        for (auto& iip: regexp.ktr.track_names)
+            retTrackVarList[iip.first] = (TrackingVariableInfo)regexp.ktr.retrieval_info[iip.second];
         VirtualMachine vm(regexp.compiled_program.size(), regexp.compiled_program.data(),
             UINT64_MAX, UINT16_MAX,
             UINT32_MAX, UINT32_MAX, UINT64_MAX);
diff --git a/src/libregexis024tools/stringmatching.h b/src/libregexis024tools/stringmatching.h
index ac96854..9dfe655 100644
--- a/src/libregexis024tools/stringmatching.h
+++ b/src/libregexis024tools/stringmatching.h
@@ -2,26 +2,9 @@
 #define LIBREGEXIS024_SRC_LIBREGEXIS024TOOLS_STRINGMATCHING_H
 
 #include <libregexis024fa/tracking_variables.h>
-#include <map>
-#include <string>
 #include <libregexis024vm/libregexis024vm_interface.h>
 
 namespace regexis024 {
-    struct TrackingVariableInfo {
-        bool stored_in_ca = true;
-        bool stored_in_sa = false;
-
-        tracking_var_type_t type;
-        /* These fields will be -1 if unused */
-        int colarr_first = -1;
-        int colarr_second = -1;
-
-        int selarr_first = -1;
-        int selarr_second = -1;
-    };
-
-    typedef std::map<std::string, TrackingVariableInfo> track_var_list;
-
     struct MatchInfo {
         bool have_match = false;
         std::vector<CAEvent> ca_history;
diff --git a/src/libregexis024vm/instruction_implementation.cpp b/src/libregexis024vm/instruction_implementation.cpp
index 0c0fa52..507d9a0 100644
--- a/src/libregexis024vm/instruction_implementation.cpp
+++ b/src/libregexis024vm/instruction_implementation.cpp
@@ -22,7 +22,7 @@ namespace regexis024 {
             ctx.RAX = ctx.RBX = 0;
         } else {
             ctx.active_thread.delete_thread();
-            ctx.try_to_continue_scheduled();
+            try_to_continue_scheduled(ctx);
         }
     }
 
@@ -69,14 +69,14 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
             other.slot_occupation_status = SLOT_NEW_val;
             ctx.active_thread.slot_occupation_status = SLOT_EMPTY_val;
             ctx.READ_halted_stack_new.append(ssid);
-            ctx.try_to_continue_scheduled();
+            try_to_continue_scheduled(ctx);
         }
     }
 
     void i_READ(VMContext &ctx) {
         ctx_print_debug(ctx);
         check_available_prg(BYTECODE_SSLOT_ID_SZ)
-        sslot_id_t ssid = ctx.extract_sslot_id();
+        sslot_id_t ssid = extract_sslot_id(ctx);
         do_i_read(ctx, ssid);
     }
 
@@ -88,7 +88,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
     void i_JUMP(VMContext& ctx){
         ctx_print_debug(ctx);
         check_available_prg(BYTECODE_NEAR_POINTER_SZ)
-        ctx.active_thread.IP = ctx.extract_near_pointer();
+        ctx.active_thread.IP = extract_near_pointer(ctx);
     }
 
     template<typename conditionT, typename immArgSzT>
@@ -97,7 +97,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         check_available_prg(immArgSzT::byte_sz + BYTECODE_NEAR_POINTER_SZ);
         uint64_t imm_val_B = immArgSzT::extract(ctx);
-        near_ptr_t dest = ctx.extract_near_pointer();
+        near_ptr_t dest = extract_near_pointer(ctx);
         uint64_t imm_val_A = ctx.INP;
         if (conditionT::call(imm_val_A, imm_val_B))
             ctx.active_thread.IP = dest;
@@ -109,25 +109,25 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
 
     struct immArgByte{
         static constexpr int byte_sz = 1;
-        static uint64_t extract(VMContext& ctx){return ctx.extract_b();}
+        static uint64_t extract(VMContext& ctx){return extract_b(ctx);}
     };
     struct immArgWord{
         static constexpr int byte_sz = 2;
-        static uint64_t extract(VMContext& ctx){return ctx.extract_w();}
+        static uint64_t extract(VMContext& ctx){return extract_w(ctx);}
     };
     struct immArgDoubleWord{
         static constexpr int byte_sz = 4;
-        static uint64_t extract(VMContext& ctx){return ctx.extract_dw();}
+        static uint64_t extract(VMContext& ctx){return extract_dw(ctx);}
     };
     struct immArgQuadWord{
         static constexpr int byte_sz = 8;
-        static uint64_t extract(VMContext& ctx){return ctx.extract_qw();}
+        static uint64_t extract(VMContext& ctx){return extract_qw(ctx);}
     };
 
     void clone_thread_into_slot(Thread& source, Thread& vessel){
         thread_print_debug(source);
-        my_assert(!(vessel.slot_occupation_status & SLOT_OCCUPIED));
-        my_assert((source.slot_occupation_status & SLOT_OCCUPIED));
+        assert(!(vessel.slot_occupation_status & SLOT_OCCUPIED));
+        assert((source.slot_occupation_status & SLOT_OCCUPIED));
         vessel = source;
         if (vessel.CAHptr){
             vessel.CAHptr->refs++;
@@ -142,8 +142,8 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         general_matching_mode_check()
         check_available_prg(BYTECODE_SSLOT_ID_SZ + BYTECODE_NEAR_POINTER_SZ);
-        sslot_id_t ssid = ctx.extract_sslot_id();
-        near_ptr_t dest = ctx.extract_near_pointer();
+        sslot_id_t ssid = extract_sslot_id(ctx);
+        near_ptr_t dest = extract_near_pointer(ctx);
         if (ssid >= ctx.fork_slots_number)
             smitsya(fork_sslot_out_of_range);
         Thread& other = ctx.FORK_halted_slots[ssid];
@@ -170,14 +170,14 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         general_matching_mode_check()
         ctx.active_thread.delete_thread();
-        ctx.try_to_continue_scheduled();
+        try_to_continue_scheduled(ctx);
     }
 
     void i_PARAM_READ_SS_NUMBER(VMContext& ctx){
         ctx_print_debug(ctx);
         initialization_phase_check()
         check_available_prg(BYTECODE_SSLOT_ID_SZ)
-        sslot_id_t read_slots_number = ctx.extract_sslot_id();
+        sslot_id_t read_slots_number = extract_sslot_id(ctx);
         ctx.read_slots_number = read_slots_number;
     }
 
@@ -185,7 +185,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         initialization_phase_check()
         check_available_prg(BYTECODE_SSLOT_ID_SZ)
-        sslot_id_t fork_slots_number = ctx.extract_sslot_id();
+        sslot_id_t fork_slots_number = extract_sslot_id(ctx);
         ctx.fork_slots_number = fork_slots_number;
     }
 
@@ -193,7 +193,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         initialization_phase_check()
         check_available_prg(BYTECODE_TRACK_ARRAY_INDEX_ID_SZ)
-        tai_t selection_array_len = ctx.extract_track_array_index();
+        tai_t selection_array_len = extract_track_array_index(ctx);
         ctx.selection_array_len = selection_array_len;
     }
 
@@ -201,7 +201,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         initialization_phase_check()
         check_available_prg(BYTECODE_NEAR_POINTER_SZ)
-        near_ptr_t sift_function = ctx.extract_near_pointer();
+        near_ptr_t sift_function = extract_near_pointer(ctx);
         ctx.have_sift_function = true;
         ctx.sift_function = sift_function;
     }
@@ -220,7 +220,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         sift_mode_check()
         check_available_prg(BYTECODE_TRACK_ARRAY_INDEX_ID_SZ)
-        tai_t i1 = ctx.extract_track_array_index();
+        tai_t i1 = extract_track_array_index(ctx);
         if (i1 >= ctx.selection_array_len)
             smitsya(selection_arr_out_of_range);
         ctx.RAX = get_el_from_selarr(ctx.active_thread.SAptr, i1);
@@ -237,10 +237,10 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         sift_mode_check()
         check_available_prg(BYTECODE_TRACK_ARRAY_INDEX_ID_SZ * 2)
-        tai_t i_start = ctx.extract_track_array_index();
+        tai_t i_start = extract_track_array_index(ctx);
         if (i_start >= ctx.selection_array_len)
             smitsya(selection_arr_out_of_range);
-        tai_t i_end = ctx.extract_track_array_index();
+        tai_t i_end = extract_track_array_index(ctx);
         if (i_end >= ctx.selection_array_len)
             smitsya(selection_arr_out_of_range);
         ctx.RAX = get_selarr_el_dist(ctx.active_thread.SAptr, i_start, i_end);
@@ -251,7 +251,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         if (ctx.who_started_sift == opcodes::READ){
             ctx.active_thread.delete_thread();
-            ctx.try_to_continue_scheduled();
+            try_to_continue_scheduled(ctx);
         } else {
             /* FORK or MATCH (which will also be shown as FORK) */
             /* Cloning conflict ends, active_thread jumps to offsprings IP */
@@ -268,7 +268,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
             /* noncloning conflict won by intruder+ */
             *ctx.sifting_with = ctx.active_thread;
             ctx.active_thread.slot_occupation_status = SLOT_EMPTY_val;
-            ctx.try_to_continue_scheduled();
+            try_to_continue_scheduled(ctx);
         } else {
             /* End of cloning conflict (it involved cloning) */
             clone_thread_into_slot(ctx.active_thread, *ctx.sifting_with);
@@ -319,8 +319,8 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         general_matching_mode_check()
         check_available_prg(BYTECODE_TRACK_ARRAY_INDEX_ID_SZ + 8)
-        tai_t ca_ind = ctx.extract_track_array_index();
-        uint64_t imm = ctx.extract_qw();
+        tai_t ca_ind = extract_track_array_index(ctx);
+        uint64_t imm = extract_qw(ctx);
         ca_branch_new_node(ctx, ca_ind, imm);
     }
 
@@ -328,7 +328,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         general_matching_mode_check()
         check_available_prg(BYTECODE_TRACK_ARRAY_INDEX_ID_SZ)
-        tai_t ca_ind = ctx.extract_track_array_index();
+        tai_t ca_ind = extract_track_array_index(ctx);
         ca_branch_new_node(ctx, ca_ind, ctx.passed_bytes);
     }
 
@@ -364,8 +364,8 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         general_matching_mode_check()
         check_available_prg(BYTECODE_TRACK_ARRAY_INDEX_ID_SZ + 8)
-        tai_t sa_ind = ctx.extract_track_array_index();
-        uint64_t imm = ctx.extract_qw();
+        tai_t sa_ind = extract_track_array_index(ctx);
+        uint64_t imm = extract_qw(ctx);
         edit_selection_array(ctx, sa_ind, imm);
     }
 
@@ -373,7 +373,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
         ctx_print_debug(ctx);
         general_matching_mode_check()
         check_available_prg(BYTECODE_TRACK_ARRAY_INDEX_ID_SZ)
-        tai_t sa_ind = ctx.extract_track_array_index();
+        tai_t sa_ind = extract_track_array_index(ctx);
         edit_selection_array(ctx, sa_ind, ctx.passed_chars);
     }
 
@@ -421,7 +421,7 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
 
     void instruction_table(VMContext &ctx) {
         ctx_print_debug(ctx);
-        uint8_t opcode = ctx.extract_instruction();
+        uint8_t opcode = extract_instruction(ctx);
 
 #define rcase(inst) case opcodes::inst: return i_ ## inst (ctx);
 #define jumpC(UN, st) case opcodes::JC ## UN ## _B: return i_JC<st, immArgByte>(ctx); \
@@ -460,4 +460,4 @@ ctx.error = error_codes::instruction_not_for_collision_thread; return; }
                 ctx.error = error_codes::invalid_opcode;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/libregexis024vm/instruction_implementation.h b/src/libregexis024vm/instruction_implementation.h
index 36341ca..05b38c2 100644
--- a/src/libregexis024vm/instruction_implementation.h
+++ b/src/libregexis024vm/instruction_implementation.h
@@ -15,23 +15,35 @@
 #define SLOT_NEW 2
 #define SLOT_NEW_val (SLOT_OCCUPIED | SLOT_NEW)
 
-#define check_available_prg(regionSz) if (!ctx.check_inboundness(regionSz)){ \
+#define check_available_prg(regionSz) if (!check_inboundness(ctx, regionSz)){ \
                             ctx.error = error_codes::improper_finish; return; }
 
 
 #if defined(LIBREGEXIS024_DEBUG) && defined(LIBREGEXIS024_ALLOW_LOUD)
 #include <debugging_regexis024/vm/libregexis024vm_debug.h>
-#define my_assert(expr) assert(expr)
 #define ctx_print_debug(ctx) debug_print_context(ctx, __func__)
 #define thread_print_debug(thread) debug_print_thread(thread, __func__)
 #else
-#define my_assert(expr) assert(expr)
 #define ctx_print_debug(ctx)
 #define thread_print_debug(thread)
 #endif
 
 namespace regexis024 {
+    bool check_inboundness(VMContext& ctx, int region);
+
+    uint8_t extract_b(VMContext& ctx);
+    uint16_t extract_w(VMContext& ctx);
+    uint32_t extract_dw(VMContext& ctx);
+    uint64_t extract_qw(VMContext& ctx);
+
+    uint8_t extract_instruction(VMContext& ctx);
+    sslot_id_t extract_sslot_id(VMContext& ctx);
+    near_ptr_t extract_near_pointer(VMContext& ctx);
+    tai_t extract_track_array_index(VMContext& ctx);
+
+    void try_to_continue_scheduled(VMContext& ctx);
+
     void instruction_table(VMContext& ctx);
 }
 
-#endif //LIBREGEXIS024_INSTRUCTION_IMPLEMENTATION_H
\ No newline at end of file
+#endif //LIBREGEXIS024_INSTRUCTION_IMPLEMENTATION_H
diff --git a/src/libregexis024vm/libregexis024vm.h b/src/libregexis024vm/libregexis024vm.h
index 53df55e..fdf81cf 100644
--- a/src/libregexis024vm/libregexis024vm.h
+++ b/src/libregexis024vm/libregexis024vm.h
@@ -53,7 +53,6 @@ namespace regexis024 {
         uint64_t* SAptr = NULL;
 
         void delete_thread() noexcept;
-        void debug_print(const char* place);
     };
 
     struct VMContext{
@@ -132,22 +131,8 @@ namespace regexis024 {
         uint64_t INP = 0;
         uint64_t passed_chars = 0;
         uint64_t passed_bytes = 0;
-
-        void try_to_continue_scheduled();
-
-        bool check_inboundness(int region);
-
-        uint8_t extract_b();
-        uint16_t extract_w();
-        uint32_t extract_dw();
-        uint64_t extract_qw();
-
-        uint8_t extract_instruction();
-        sslot_id_t extract_sslot_id();
-        near_ptr_t extract_near_pointer();
-        tai_t extract_track_array_index();
-
-        void debug_print(const char* place);
     };
+
+    void wipe(VMContext& ctx) noexcept;
 }
 #endif //LIBREGEXIS024_LIBREGEXIS024VM_H
diff --git a/src/libregexis024vm/libregexis024vm_context.cpp b/src/libregexis024vm/libregexis024vm_context.cpp
index 78d243a..503a7d4 100644
--- a/src/libregexis024vm/libregexis024vm_context.cpp
+++ b/src/libregexis024vm/libregexis024vm_context.cpp
@@ -42,7 +42,7 @@ namespace regexis024 {
      * gonna deoccupy slot_occupation_status*/
     void Thread::delete_thread() noexcept {
         thread_print_debug(*this);
-        my_assert(slot_occupation_status & SLOT_OCCUPIED);
+        assert(slot_occupation_status & SLOT_OCCUPIED);
         slot_occupation_status = SLOT_EMPTY_val;
         CollectionArrayNode* cur_CAptr = CAHptr;
         while (cur_CAptr){
@@ -60,37 +60,29 @@ namespace regexis024 {
         }
     }
 
-    void emptify_one_of_new_read_halted_stacks(VMContext& ctx, SSID_Stack& type_new_stack){
-        while (!type_new_stack.empty()){
-            Thread& thread = ctx.READ_halted_slots[type_new_stack.pop()];
-            assert(thread.slot_occupation_status & SLOT_OCCUPIED);
-            thread.delete_thread();
-        }
-    }
-
     /* First it will try to pop pending thread from FORK_halted_stack
      * Then it will try popping thread from READ_halted_stack_old (checking if top
      * thread here is not actually SLOT_NEW). If something succeded, corresponding slot will be deoccupied, and
      * active slot will be occupied with it.
      *
      * try_to_continue_scheduled() assumes that active thread is unoccupied.*/
-    void VMContext::try_to_continue_scheduled(){
-        ctx_print_debug(*this);
-        my_assert(!(active_thread.slot_occupation_status & SLOT_OCCUPIED));
-        if (FORK_halted_stack.sz){
-            sslot_id_t ssid = FORK_halted_stack.pop();
-            active_thread = FORK_halted_slots[ssid];
-            FORK_halted_slots[ssid].slot_occupation_status = SLOT_EMPTY_val;
+    void try_to_continue_scheduled(VMContext& ctx){
+        ctx_print_debug(ctx);
+        assert(!(ctx.active_thread.slot_occupation_status & SLOT_OCCUPIED));
+        if (ctx.FORK_halted_stack.sz){
+            sslot_id_t ssid = ctx.FORK_halted_stack.pop();
+            ctx.active_thread = ctx.FORK_halted_slots[ssid];
+            ctx.FORK_halted_slots[ssid].slot_occupation_status = SLOT_EMPTY_val;
             return;
         }
-        while (READ_halted_stack_old.sz){
-            sslot_id_t ssid = READ_halted_stack_old.pop();
-            if (READ_halted_slots[ssid].slot_occupation_status & SLOT_NEW){
+        while (ctx.READ_halted_stack_old.sz){
+            sslot_id_t ssid = ctx.READ_halted_stack_old.pop();
+            if (ctx.READ_halted_slots[ssid].slot_occupation_status & SLOT_NEW){
                 /* This is the case when old thread was silently replaced by settled new thread */
                 continue;
             }
-            active_thread = READ_halted_slots[ssid];
-            READ_halted_slots[ssid].slot_occupation_status = SLOT_EMPTY_val;
+            ctx.active_thread = ctx.READ_halted_slots[ssid];
+            ctx.READ_halted_slots[ssid].slot_occupation_status = SLOT_EMPTY_val;
             return;
         }
         /* Failure here will be detected. We started with unoccupied active thread. iterator inside kick will see it */
@@ -148,28 +140,44 @@ namespace regexis024 {
         INP = input;
         passed_bytes += corresponding_byte_amount;
         passed_chars++;
-        try_to_continue_scheduled();
+        try_to_continue_scheduled(*this);
         kick(*this);
         return error;
     }
 
     VMContext::~VMContext() {
         ctx_print_debug(*this);
-        if (initialized){
-            emptify_one_of_new_read_halted_stacks(*this, READ_halted_stack_new);
-            while (!READ_halted_stack_old.empty()){
-                Thread& thread = READ_halted_slots[READ_halted_stack_old.pop()];
+        if (active_thread.slot_occupation_status & SLOT_OCCUPIED)
+            active_thread.delete_thread();
+        wipe(*this);
+        if (initialized) {
+            free(READ_halted_slots);
+            free(FORK_halted_slots);
+        }
+    }
+
+    void wipe(VMContext& ctx) noexcept {
+        ctx_print_debug(ctx);
+        assert(!(ctx.active_thread.slot_occupation_status & SLOT_OCCUPIED));
+        if (ctx.initialized){
+            ctx.timer = 0;
+            ctx.CAN_total = 0;
+            while (!ctx.READ_halted_stack_new.empty()){
+                Thread& thread = ctx.READ_halted_slots[ctx.READ_halted_stack_new.pop()];
+                assert(thread.slot_occupation_status & SLOT_OCCUPIED);
+                thread.delete_thread();
+            }
+            while (!ctx.READ_halted_stack_old.empty()){
+                Thread& thread = ctx.READ_halted_slots[ctx.READ_halted_stack_old.pop()];
                 assert(thread.slot_occupation_status & SLOT_OCCUPIED);
                 if (!(thread.slot_occupation_status & SLOT_NEW))
                     thread.delete_thread();
             }
-            free(READ_halted_slots);
-            while (!FORK_halted_stack.empty())
-                FORK_halted_slots[FORK_halted_stack.pop()].delete_thread();
-            free(FORK_halted_slots);
+            while (!ctx.FORK_halted_stack.empty())
+                ctx.FORK_halted_slots[ctx.FORK_halted_stack.pop()].delete_thread();
 
-            if (matched_thread.slot_occupation_status & SLOT_OCCUPIED){
-                matched_thread.delete_thread();
+            if (ctx.matched_thread.slot_occupation_status & SLOT_OCCUPIED){
+                ctx.matched_thread.delete_thread();
             }
         }
     }
diff --git a/src/libregexis024vm/libregexis024vm_disassembly.cpp b/src/libregexis024vm/libregexis024vm_disassembly.cpp
index fcdea12..4c5c276 100644
--- a/src/libregexis024vm/libregexis024vm_disassembly.cpp
+++ b/src/libregexis024vm/libregexis024vm_disassembly.cpp
@@ -2,39 +2,39 @@
 #include <libregexis024vm/vm_opcodes.h>
 
 namespace regexis024 {
-    bool VMContext::check_inboundness(int region){
-        return vmprog_check_inboundness(program_size, active_thread.IP, region);
+    bool check_inboundness(VMContext& ctx, int region){
+        return vmprog_check_inboundness(ctx.program_size, ctx.active_thread.IP, region);
     }
 
-    uint8_t VMContext::extract_b() {
-        return vmprog_extract_b(&active_thread.IP, prg);
+    uint8_t extract_b(VMContext& ctx) {
+        return vmprog_extract_b(&ctx.active_thread.IP, ctx.prg);
     }
 
-    uint16_t VMContext::extract_w() {
-        return vmprog_extract_w(&active_thread.IP, prg);
+    uint16_t extract_w(VMContext& ctx) {
+        return vmprog_extract_w(&ctx.active_thread.IP, ctx.prg);
     }
 
-    uint32_t VMContext::extract_dw() {
-        return vmprog_extract_dw(&active_thread.IP, prg);
+    uint32_t extract_dw(VMContext& ctx) {
+        return vmprog_extract_dw(&ctx.active_thread.IP, ctx.prg);
     }
 
-    uint64_t VMContext::extract_qw() {
-        return vmprog_extract_qw(&active_thread.IP, prg);
+    uint64_t extract_qw(VMContext& ctx) {
+        return vmprog_extract_qw(&ctx.active_thread.IP, ctx.prg);
     }
 
-    uint8_t VMContext::extract_instruction() {
-        return extract_b();
+    uint8_t extract_instruction(VMContext& ctx) {
+        return extract_b(ctx);
     }
 
-    sslot_id_t VMContext::extract_sslot_id() {
-        return extract_dw();
+    sslot_id_t extract_sslot_id(VMContext& ctx) {
+        return extract_dw(ctx);
     }
 
-    near_ptr_t VMContext::extract_near_pointer() {
-        return extract_qw();
+    near_ptr_t extract_near_pointer(VMContext& ctx) {
+        return extract_qw(ctx);
     }
 
-    tai_t VMContext::extract_track_array_index() {
-        return extract_w();
+    tai_t extract_track_array_index(VMContext& ctx) {
+        return extract_w(ctx);
     }
 }
diff --git a/src/libregexis024vm/libregexis024vm_interface.cpp b/src/libregexis024vm/libregexis024vm_interface.cpp
index f8506f5..f3c4ad5 100644
--- a/src/libregexis024vm/libregexis024vm_interface.cpp
+++ b/src/libregexis024vm/libregexis024vm_interface.cpp
@@ -85,4 +85,8 @@ namespace regexis024 {
             throw std::runtime_error("unusable\n");
         return reveal->feedCharacter(input, bytesResembled);
     }
+
+    void VirtualMachine::wipeToInit() {
+        wipe(*reveal);
+    }
 }
diff --git a/src/libregexis024vm/libregexis024vm_interface.h b/src/libregexis024vm/libregexis024vm_interface.h
index fc6a510..e24292f 100644
--- a/src/libregexis024vm/libregexis024vm_interface.h
+++ b/src/libregexis024vm/libregexis024vm_interface.h
@@ -33,7 +33,7 @@ namespace regexis024 {
 
         error_code_t addNewMatchingThread();
         error_code_t feedCharacter(uint64_t input, uint64_t bytesResembled);
-
+        void wipeToInit();
     private:
         bool gave_SOF = false;
         void* opaque;