diff options
| -rw-r--r-- | lib/Core/Executor.cpp | 9 | ||||
| -rw-r--r-- | test/Feature/SolverTimeout.c | 15 |
2 files changed, 20 insertions, 4 deletions
diff --git a/lib/Core/Executor.cpp b/lib/Core/Executor.cpp index 462db18b..917a746d 100644 --- a/lib/Core/Executor.cpp +++ b/lib/Core/Executor.cpp @@ -209,7 +209,7 @@ namespace { cl::opt<double> MaxInstructionTime("max-instruction-time", - cl::desc("Only allow a single instruction to take this much time (default=0 (off))"), + cl::desc("Only allow a single instruction to take this much time (default=0s (off)). Enables --use-forked-stp"), cl::init(0)); cl::opt<double> @@ -219,8 +219,8 @@ namespace { cl::opt<double> MaxSTPTime("max-stp-time", - cl::desc("Maximum amount of time for a single query (default=120s)"), - cl::init(120.0)); + cl::desc("Maximum amount of time for a single query (default=0s (off)). Enables --use-forked-stp"), + cl::init(0.0)); cl::opt<unsigned int> StopAfterNInstructions("stop-after-n-instructions", @@ -249,7 +249,7 @@ namespace { cl::opt<bool> UseForkedSTP("use-forked-stp", - cl::desc("Run STP in forked process")); + cl::desc("Run STP in a forked process (default=off)")); cl::opt<bool> STPOptimizeDivides("stp-optimize-divides", @@ -317,6 +317,7 @@ Executor::Executor(const InterpreterOptions &opts, stpTimeout(MaxSTPTime != 0 && MaxInstructionTime != 0 ? std::min(MaxSTPTime,MaxInstructionTime) : std::max(MaxSTPTime,MaxInstructionTime)) { + if (stpTimeout) UseForkedSTP = true; STPSolver *stpSolver = new STPSolver(UseForkedSTP, STPOptimizeDivides); Solver *solver = constructSolverChain(stpSolver, diff --git a/test/Feature/SolverTimeout.c b/test/Feature/SolverTimeout.c new file mode 100644 index 00000000..96f75cd7 --- /dev/null +++ b/test/Feature/SolverTimeout.c @@ -0,0 +1,15 @@ +// RUN: %llvmgcc %s -emit-llvm -O0 -c -o %t1.bc +// RUN: %klee --max-stp-time=1 %t1.bc +#include <stdio.h> + +int main() { + long long int x, y = 102*75678 + 78, i = 101; + + klee_make_symbolic(&x, sizeof(x), "x"); + + if (x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x + (x*x % (x+12)) == y*y*y*y*y*y*y*y*y*y*y*y*y*y*y*y % i) + printf("Yes\n"); + else printf("No\n"); + + return 0; +} |