Base time API upon std::chrono

This should not change the behaviour of KLEE and mimics the old API.

- functions moved from util into time namespace
- uses time points and time spans instead of double
- CLI arguments now have the form "3h5min8us"

Changed command line parameters:
- batch-time (double to string)
- istats-write-interval (double to string)
- max-instruction-time (double to string)
- max-solver-time (double to string)
- max-time (double to string)
- min-query-time-to-log (double to string)
- seed-time (double to string)
- stats-write-interval (double to string)
- uncovered-update-interval (double to string)
- added: log-timed-out-queries (replaces negative max-solver-time)

1 files changed, 3 insertions, 2 deletions

diff --git a/tools/kleaver/main.cpp b/tools/kleaver/main.cpp
index 3ce414a2..3ac13adb 100644
--- a/tools/kleaver/main.cpp
+++ b/tools/kleaver/main.cpp
@@ -216,8 +216,9 @@ static bool EvaluateInputAST(const char *Filename,
   Solver *coreSolver = klee::createCoreSolver(CoreSolverToUse);
 
   if (CoreSolverToUse != DUMMY_SOLVER) {
-    if (0 != MaxCoreSolverTime) {
-      coreSolver->setCoreSolverTimeout(MaxCoreSolverTime);
+    const time::Span maxCoreSolverTime(MaxCoreSolverTime);
+    if (maxCoreSolverTime) {
+      coreSolver->setCoreSolverTimeout(maxCoreSolverTime);
     }
   }