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-rw-r--r--Source/Provers/SMTLib/Inspector.cs314
1 files changed, 157 insertions, 157 deletions
diff --git a/Source/Provers/SMTLib/Inspector.cs b/Source/Provers/SMTLib/Inspector.cs
index 362502f3..13a2076e 100644
--- a/Source/Provers/SMTLib/Inspector.cs
+++ b/Source/Provers/SMTLib/Inspector.cs
@@ -1,157 +1,157 @@
-//-----------------------------------------------------------------------------
-//
-// Copyright (C) Microsoft Corporation. All Rights Reserved.
-//
-//-----------------------------------------------------------------------------
-using System;
-using System.IO;
-using System.Diagnostics;
-using System.Collections;
-using System.Collections.Generic;
-using System.Diagnostics.Contracts;
-//using util;
-using Microsoft.Boogie;
-using Microsoft.Basetypes;
-using Microsoft.Boogie.VCExprAST;
-
-namespace Microsoft.Boogie.SMTLib
-{
- internal class FindLabelsVisitor : TraversingVCExprVisitor<bool, bool> {
- public HashSet<string/*!*/>/*!*/ Labels = new HashSet<string/*!*/>();
- [ContractInvariantMethod]
- void ObjectInvariant() {
- Contract.Invariant(cce.NonNull(Labels));
- }
-
-
- public static HashSet<string/*!*/>/*!*/ FindLabels(VCExpr/*!*/ expr) {
- Contract.Requires(expr != null);
- Contract.Ensures(cce.NonNull(Contract.Result<HashSet<string/*!*/>/*!*/>()));
-
- FindLabelsVisitor visitor = new FindLabelsVisitor();
- visitor.Traverse(expr, true);
- return visitor.Labels;
- }
-
- protected override bool StandardResult(VCExpr node, bool arg) {
- //Contract.Requires(node!=null);
- VCExprNAry nary = node as VCExprNAry;
- if (nary != null) {
- VCExprLabelOp lab = nary.Op as VCExprLabelOp;
- if (lab != null) {
- Labels.Add(lab.label);
- }
- }
- return true;
- }
- }
-
- internal class Inspector {
- [Rep] protected readonly Process inspector;
- [Rep] readonly TextReader fromInspector;
- [Rep] readonly TextWriter toInspector;
- [ContractInvariantMethod]
- void ObjectInvariant()
- {
- Contract.Invariant(inspector!=null);
- Contract.Invariant(fromInspector!=null);
- Contract.Invariant(toInspector != null);
- }
-
-
- public Inspector(SMTLibProverOptions opts)
- {
- Contract.Requires(opts != null);
- ProcessStartInfo psi = new ProcessStartInfo(opts.Inspector);
- Contract.Assert(psi!=null);
- psi.CreateNoWindow = true;
- psi.UseShellExecute = false;
- psi.RedirectStandardInput = true;
- psi.RedirectStandardOutput = true;
- psi.RedirectStandardError = false;
-
- try
- {
- Process inspector = Process.Start(psi);
- this.inspector = inspector;
- fromInspector = inspector.StandardOutput;
- toInspector = inspector.StandardInput;
- }
- catch (System.ComponentModel.Win32Exception e)
- {
- throw new Exception(string.Format("Unable to start the inspector process {0}: {1}", opts.Inspector, e.Message));
- }
- }
-
- public void NewProblem(string descriptiveName, VCExpr vc, ProverInterface.ErrorHandler handler)
- {
- Contract.Requires(descriptiveName != null);
- Contract.Requires(vc != null);
- Contract.Requires(handler != null);
- HashSet<string/*!*/>/*!*/ labels = FindLabelsVisitor.FindLabels(vc);
- Contract.Assert(labels!=null);
- toInspector.WriteLine("PROBLEM " + descriptiveName);
- toInspector.WriteLine("TOKEN BEGIN");
- foreach (string lab in labels) {
- Contract.Assert(lab!=null);
- string no = lab.Substring(1);
- Absy absy = handler.Label2Absy(no);
-
- IToken tok = absy.tok;
- AssertCmd assrt = absy as AssertCmd;
- Block blk = absy as Block;
- string val = tok.val; // might require computation, so cache it
- if (val == "foo" || tok.filename == null) continue; // no token
-
- toInspector.Write("TOKEN ");
- toInspector.Write(lab);
- toInspector.Write(" ");
-
- if (assrt != null) {
- toInspector.Write("ASSERT");
- string errData = assrt.ErrorData as string;
- if (errData != null) {
- val = errData;
- } else if (assrt.ErrorMessage != null) {
- val = assrt.ErrorMessage;
- }
- } else if (blk != null) {
- toInspector.Write("BLOCK ");
- toInspector.Write(blk.Label);
- } else {
- Contract.Assume( false);
- }
- if (val == null || val == "assert" || val == "ensures") { val = ""; }
-
- if (absy is LoopInitAssertCmd) {
- val += " (loop entry)";
- } else if (absy is LoopInvMaintainedAssertCmd) {
- val += " (loop body)";
- } else if (val.IndexOf("#VCCERR") >= 0) {
- // skip further transformations
- } else if (absy is AssertRequiresCmd) {
- AssertRequiresCmd req = (AssertRequiresCmd)absy;
- IToken t2 = req.Requires.tok;
- string tval = t2.val;
- if (tval == "requires")
- tval = string.Format("{0}({1},{2}))", t2.filename, t2.line, t2.col);
- string call = "";
- if (val != "call") call = " in call to " + val;
- val = string.Format("precondition {0}{1}", tval, call);
- }
-
- val = val.Replace("\r", "").Replace("\n", " ");
-
- toInspector.WriteLine(string.Format(" {0} {1} :@:{2}:@:{3}", tok.line, tok.col, tok.filename, val));
- }
- toInspector.WriteLine("TOKEN END");
- }
-
- public void StatsLine(string line)
- {
- Contract.Requires(line != null);
- toInspector.WriteLine(line);
- toInspector.Flush();
- }
- }
-}
+//-----------------------------------------------------------------------------
+//
+// Copyright (C) Microsoft Corporation. All Rights Reserved.
+//
+//-----------------------------------------------------------------------------
+using System;
+using System.IO;
+using System.Diagnostics;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics.Contracts;
+//using util;
+using Microsoft.Boogie;
+using Microsoft.Basetypes;
+using Microsoft.Boogie.VCExprAST;
+
+namespace Microsoft.Boogie.SMTLib
+{
+ internal class FindLabelsVisitor : TraversingVCExprVisitor<bool, bool> {
+ public HashSet<string/*!*/>/*!*/ Labels = new HashSet<string/*!*/>();
+ [ContractInvariantMethod]
+ void ObjectInvariant() {
+ Contract.Invariant(cce.NonNull(Labels));
+ }
+
+
+ public static HashSet<string/*!*/>/*!*/ FindLabels(VCExpr/*!*/ expr) {
+ Contract.Requires(expr != null);
+ Contract.Ensures(cce.NonNull(Contract.Result<HashSet<string/*!*/>/*!*/>()));
+
+ FindLabelsVisitor visitor = new FindLabelsVisitor();
+ visitor.Traverse(expr, true);
+ return visitor.Labels;
+ }
+
+ protected override bool StandardResult(VCExpr node, bool arg) {
+ //Contract.Requires(node!=null);
+ VCExprNAry nary = node as VCExprNAry;
+ if (nary != null) {
+ VCExprLabelOp lab = nary.Op as VCExprLabelOp;
+ if (lab != null) {
+ Labels.Add(lab.label);
+ }
+ }
+ return true;
+ }
+ }
+
+ internal class Inspector {
+ [Rep] protected readonly Process inspector;
+ [Rep] readonly TextReader fromInspector;
+ [Rep] readonly TextWriter toInspector;
+ [ContractInvariantMethod]
+ void ObjectInvariant()
+ {
+ Contract.Invariant(inspector!=null);
+ Contract.Invariant(fromInspector!=null);
+ Contract.Invariant(toInspector != null);
+ }
+
+
+ public Inspector(SMTLibProverOptions opts)
+ {
+ Contract.Requires(opts != null);
+ ProcessStartInfo psi = new ProcessStartInfo(opts.Inspector);
+ Contract.Assert(psi!=null);
+ psi.CreateNoWindow = true;
+ psi.UseShellExecute = false;
+ psi.RedirectStandardInput = true;
+ psi.RedirectStandardOutput = true;
+ psi.RedirectStandardError = false;
+
+ try
+ {
+ Process inspector = Process.Start(psi);
+ this.inspector = inspector;
+ fromInspector = inspector.StandardOutput;
+ toInspector = inspector.StandardInput;
+ }
+ catch (System.ComponentModel.Win32Exception e)
+ {
+ throw new Exception(string.Format("Unable to start the inspector process {0}: {1}", opts.Inspector, e.Message));
+ }
+ }
+
+ public void NewProblem(string descriptiveName, VCExpr vc, ProverInterface.ErrorHandler handler)
+ {
+ Contract.Requires(descriptiveName != null);
+ Contract.Requires(vc != null);
+ Contract.Requires(handler != null);
+ HashSet<string/*!*/>/*!*/ labels = FindLabelsVisitor.FindLabels(vc);
+ Contract.Assert(labels!=null);
+ toInspector.WriteLine("PROBLEM " + descriptiveName);
+ toInspector.WriteLine("TOKEN BEGIN");
+ foreach (string lab in labels) {
+ Contract.Assert(lab!=null);
+ string no = lab.Substring(1);
+ Absy absy = handler.Label2Absy(no);
+
+ IToken tok = absy.tok;
+ AssertCmd assrt = absy as AssertCmd;
+ Block blk = absy as Block;
+ string val = tok.val; // might require computation, so cache it
+ if (val == "foo" || tok.filename == null) continue; // no token
+
+ toInspector.Write("TOKEN ");
+ toInspector.Write(lab);
+ toInspector.Write(" ");
+
+ if (assrt != null) {
+ toInspector.Write("ASSERT");
+ string errData = assrt.ErrorData as string;
+ if (errData != null) {
+ val = errData;
+ } else if (assrt.ErrorMessage != null) {
+ val = assrt.ErrorMessage;
+ }
+ } else if (blk != null) {
+ toInspector.Write("BLOCK ");
+ toInspector.Write(blk.Label);
+ } else {
+ Contract.Assume( false);
+ }
+ if (val == null || val == "assert" || val == "ensures") { val = ""; }
+
+ if (absy is LoopInitAssertCmd) {
+ val += " (loop entry)";
+ } else if (absy is LoopInvMaintainedAssertCmd) {
+ val += " (loop body)";
+ } else if (val.IndexOf("#VCCERR") >= 0) {
+ // skip further transformations
+ } else if (absy is AssertRequiresCmd) {
+ AssertRequiresCmd req = (AssertRequiresCmd)absy;
+ IToken t2 = req.Requires.tok;
+ string tval = t2.val;
+ if (tval == "requires")
+ tval = string.Format("{0}({1},{2}))", t2.filename, t2.line, t2.col);
+ string call = "";
+ if (val != "call") call = " in call to " + val;
+ val = string.Format("precondition {0}{1}", tval, call);
+ }
+
+ val = val.Replace("\r", "").Replace("\n", " ");
+
+ toInspector.WriteLine(string.Format(" {0} {1} :@:{2}:@:{3}", tok.line, tok.col, tok.filename, val));
+ }
+ toInspector.WriteLine("TOKEN END");
+ }
+
+ public void StatsLine(string line)
+ {
+ Contract.Requires(line != null);
+ toInspector.WriteLine(line);
+ toInspector.Flush();
+ }
+ }
+}
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