diff --git a/integration_tests/cairo_vm_test.go b/integration_tests/cairo_vm_test.go
index fdbcee59..4b6a030b 100644
--- a/integration_tests/cairo_vm_test.go
+++ b/integration_tests/cairo_vm_test.go
@@ -75,7 +75,7 @@ func runAndTestFile(t *testing.T, path string, name string, benchmarkMap map[str
 	}
 	layout := getLayoutFromFileName(path)
 
-	_, traceFile, memoryFile, _, err := runVm(compiledOutput, layout, zero)
+	elapsedGo, traceFile, memoryFile, _, err := runVm(compiledOutput, layout, zero)
 	if errorExpected {
 		assert.Error(t, err, path)
 		writeToFile(path)
@@ -92,7 +92,7 @@ func runAndTestFile(t *testing.T, path string, name string, benchmarkMap map[str
 	if zero {
 		rustVmFilePath = compiledOutput
 	}
-	_, rsTraceFile, rsMemoryFile, err := runRustVm(rustVmFilePath, layout, zero)
+	elapsedRs, rsTraceFile, rsMemoryFile, err := runRustVm(rustVmFilePath, layout, zero)
 	if errorExpected {
 		// we let the code go on so that we can check if the go vm also raises an error
 		assert.Error(t, err, path)
@@ -129,49 +129,39 @@ func runAndTestFile(t *testing.T, path string, name string, benchmarkMap map[str
 		writeToFile(path)
 	}
 
-	// if zero {
-	// 	elapsedPy, pyTraceFile, pyMemoryFile, err := runPythonVm(compiledOutput, layout)
-	// 	if errorExpected {
-	// 		// we let the code go on so that we can check if the go vm also raises an error
-	// 		assert.Error(t, err, path)
-	// 	} else {
-	// 		if err != nil {
-	// 			t.Error(err)
-	// 			return
-	// 		}
-	// 	}
-
-	// 	if benchmark {
-	// 		benchmarkMap[name] = [3]int{int(elapsedPy.Milliseconds()), int(elapsedGo.Milliseconds()), int(elapsedRs.Milliseconds())}
-	// 	}
-
-	// 	pyTrace, pyMemory, err := decodeProof(pyTraceFile, pyMemoryFile)
-	// 	if err != nil {
-	// 		t.Error(err)
-	// 		return
-	// 	}
-
-	// 	if !assert.Equal(t, pyTrace, rsTrace) {
-	// 		t.Logf("pytrace:\n%s\n", traceRepr(pyTrace))
-	// 		t.Logf("rstrace:\n%s\n", traceRepr(rsTrace))
-	// 		writeToFile(path)
-	// 	}
-	// 	if !assert.Equal(t, pyMemory, rsMemory) {
-	// 		t.Logf("pymemory;\n%s\n", memoryRepr(pyMemory))
-	// 		t.Logf("rsmemory;\n%s\n", memoryRepr(rsMemory))
-	// 		writeToFile(path)
-	// 	}
-	// 	if !assert.Equal(t, pyTrace, trace) {
-	// 		t.Logf("pytrace:\n%s\n", traceRepr(pyTrace))
-	// 		t.Logf("trace:\n%s\n", traceRepr(trace))
-	// 		writeToFile(path)
-	// 	}
-	// 	if !assert.Equal(t, pyMemory, memory) {
-	// 		t.Logf("pymemory;\n%s\n", memoryRepr(pyMemory))
-	// 		t.Logf("memory;\n%s\n", memoryRepr(memory))
-	// 		writeToFile(path)
-	// 	}
-	// }
+	if zero {
+		elapsedPy, pyTraceFile, pyMemoryFile, err := runPythonVm(compiledOutput, layout)
+		if errorExpected {
+			// we let the code go on so that we can check if the go vm also raises an error
+			assert.Error(t, err, path)
+		} else {
+			if err != nil {
+				t.Error(err)
+				return
+			}
+		}
+
+		if benchmark {
+			benchmarkMap[name] = [3]int{int(elapsedPy.Milliseconds()), int(elapsedGo.Milliseconds()), int(elapsedRs.Milliseconds())}
+		}
+
+		pyTrace, pyMemory, err := decodeProof(pyTraceFile, pyMemoryFile)
+		if err != nil {
+			t.Error(err)
+			return
+		}
+
+		if !assert.Equal(t, pyTrace, trace) {
+			t.Logf("pytrace:\n%s\n", traceRepr(pyTrace))
+			t.Logf("trace:\n%s\n", traceRepr(trace))
+			writeToFile(path)
+		}
+		if !assert.Equal(t, pyMemory, memory) {
+			t.Logf("pymemory;\n%s\n", memoryRepr(pyMemory))
+			t.Logf("memory;\n%s\n", memoryRepr(memory))
+			writeToFile(path)
+		}
+	}
 }
 
 var zerobench = flag.Bool("zerobench", false, "run integration tests and generate benchmarks file")
diff --git a/pkg/runner/runner.go b/pkg/runner/runner.go
index 6e9e06ca..057c97a1 100644
--- a/pkg/runner/runner.go
+++ b/pkg/runner/runner.go
@@ -190,6 +190,7 @@ func (runner *Runner) initializeMainEntrypoint() (mem.MemoryAddress, error) {
 			return runner.initializeEntrypoint(mainPCOffset, nil, &mvReturnFp, memory, stack, 0)
 		}
 	case ProofModeZero:
+		fmt.Println("program: ", runner.program.Labels)
 		initialPCOffset, ok := runner.program.Labels["__start__"]
 		if !ok {
 			return mem.UnknownAddress,
@@ -295,7 +296,6 @@ func (runner *Runner) initializeVm(
 			return err
 		}
 	}
-	fmt.Println("offset", offset, "stackSize", stackSize, "cairo1FpOffset", cairo1FpOffset)
 	initialFp := offset + uint64(len(stack)) + cairo1FpOffset
 	var err error
 	// initialize vm
@@ -313,11 +313,6 @@ func (runner *Runner) initializeVm(
 // run until the program counter equals the `pc` parameter
 func (runner *Runner) RunUntilPc(pc *mem.MemoryAddress) error {
 	for !runner.vm.Context.Pc.Equal(pc) {
-		fmt.Println("pc", runner.pc(), "ap", runner.vm.Context.Ap, "fp", runner.vm.Context.Fp)
-		// if runner.steps() == 4 {
-		// 	runner.vm.PrintMemory()
-		// }
-		// runner.vm.PrintMemory()
 		if runner.steps() >= runner.maxsteps {
 			return fmt.Errorf(
 				"pc %s step %d: max step limit exceeded (%d)",
@@ -554,7 +549,6 @@ func GetEntryCodeInstructions(function starknet.EntryPointByFunction, finalizeFo
 	usedArgs := 0
 	var hints map[uint64][]hinter.Hinter
 	for _, builtin := range function.Builtins {
-		fmt.Println("builtin", builtin, builtin == builtins.GasBuiltinType)
 		if offset, isBuiltin := builtinsOffsetsMap[builtin]; isBuiltin {
 			ctx.AddInlineCASM(
 				fmt.Sprintf("[ap + 0] = [fp - %d], ap++;", offset),
@@ -575,7 +569,6 @@ func GetEntryCodeInstructions(function starknet.EntryPointByFunction, finalizeFo
 			)
 			apOffset += 1
 		} else if builtin == builtins.GasBuiltinType {
-			fmt.Println("builtin == builtins.GasBuiltinType")
 			hints = map[uint64][]hinter.Hinter{
 				uint64(ctx.currentCodeOffset): {
 					&core.ExternalWriteArgsToMemory{},
diff --git a/pkg/runner/runner_test.go b/pkg/runner/runner_test.go
index a20c074b..50ded3f4 100644
--- a/pkg/runner/runner_test.go
+++ b/pkg/runner/runner_test.go
@@ -434,9 +434,8 @@ func TestModuloBuiltin(t *testing.T) {
 
 func createRunner(code string, layoutName string, builtins ...builtins.BuiltinType) Runner {
 	program := createProgramWithBuiltins(code, builtins...)
-
 	hints := make(map[uint64][]hinter.Hinter)
-	runner, err := NewRunner(program, hints, ProofModeZero, false, math.MaxUint64, layoutName, nil)
+	runner, err := NewRunner(program, hints, ExecutionModeZero, false, math.MaxUint64, layoutName, nil)
 	if err != nil {
 		panic(err)
 	}