Call glucose with -verb=0.

* src/misc/satsolver.cc: Call glucose with -verb=0.
* src/bin/man/spot-x.x: Document it.

src/bin/man/spot-x.x

@@ -14,12 +14,13 @@ spot-x \- Common fine-tuning options.
 .TP
 \fBSPOT_SATSOLVER\fR
 If set, this variable should indicate how to call a SAT\-solver.  This
-is used by the sat\-minimize option described above.  The default value
-is \f(CW"glucose %I >%O"\fR.  The escape sequences \f(CW%I\fR and \f(CW%O\fR
-respectively denote the names of the input and output files.  These
-temporary files are created in the directory specified by \fBSPOT_TMPDIR\fR
-or \fBTMPDIR\fR (see below).  The SAT-solver should follow the convention
-of the SAT Competition for its input and output format.
+is used by the sat\-minimize option described above.  The default
+value is \f(CW"glucose -verb=0 %I >%O"\fR.  The escape sequences
+\f(CW%I\fR and \f(CW%O\fR respectively denote the names of the input
+and output files.  These temporary files are created in the directory
+specified by \fBSPOT_TMPDIR\fR or \fBTMPDIR\fR (see below).  The
+SAT-solver should follow the convention of the SAT Competition for its
+input and output format.
 
 .TP
 \fBSPOT_TMPDIR\fR, \fBTMPDIR\fR

src/misc/satsolver.cc

@@ -40,7 +40,7 @@ namespace spot
 	satsolver = getenv("SPOT_SATSOLVER");
 	if (!satsolver)
 	  {
-	    satsolver = "glucose %I >%O";
+	    satsolver = "glucose -verb=0 %I >%O";
 	    return;
 	  }
 	prime(satsolver);