diff --git a/benchmarks/bugs/bug_aniso.geo b/benchmarks/bugs/bug_aniso.geo
deleted file mode 100644
index 885573c30068e9e5ce27f0e31346a92cb5d94d6e..0000000000000000000000000000000000000000
--- a/benchmarks/bugs/bug_aniso.geo
+++ /dev/null
@@ -1,126 +0,0 @@
-Mesh.CharacteristicLengthFactor = 1;
-Mesh.Algorithm = 2; /*2D mesh algorithm (1=isotropic, 2=anisotropic, 3=triangle)*/
-
-
-CLF = 0.995 ; // MARCHE PAS
-//CLF = 0.999 ; //OK
-
-RRes = 0.001;  dzRes1 = 0.01 ; 
-REl1 = 0.025;  dzEl1 = REl1/25 ;  
-RLay1 = 0.030;  dzLay1 = 0.0003 ;
-RLay2 = 0.050;  dzLay2 = 0.050 ; 
-REl2 = 0.025; dzEl2 = REl2/25 ; 
-
-
-SigCopper = 1/1.0e-8 ;
-SigGel = 1/5000.0 ;
-SigMuscle = 1/5.0 ;
-Res = 1e6 ; 
-SigRes = 1/Res * dzRes1 / Pi / RRes^2 ;
-
-j = 0.1/Pi/0.025^2 ;
-I = j * Pi * REl1^2 ; VElec1Pot = I * Res ;
-
-
-
-
-dztot = 0 ;
-
-
-/* Resistance */
-Point(1) = {0,dztot,0.0,RRes/2*CLF};
-Point(2) = {RRes,dztot,0,RRes/2*CLF};
-dztot = dztot - dzRes1 ; 
-Point(3) = {RRes,dztot,0.0,RRes/2*CLF};
-Point(4) = {0,dztot,0.0,RRes/2*CLF};		// not used
-
-/* electrode 1 */
-lc1 = REl1/50 ; lc2 = REl1/50 ;
-Point(5) = {0,dztot,0.0,lc1*CLF};
-Point(6) = {REl1,dztot,0,lc1*CLF};
-dztot = dztot - dzEl1 ;
-Point(7) = {REl1,dztot,0.0,lc2/10*CLF};
-Point(8) = {0,dztot,0.0,lc2*CLF};		// not used
-
-
-/* layer 1 Gel or Resistive slab */ 
-lc1 = RLay1/250 ; lc2 = RLay1/250 ;
-Point(9) = {0,dztot,0.0,REl1/100*CLF};
-Point(10) = {RLay1,dztot,0,lc2*CLF};
-dztot = dztot - dzLay1 ; dzElecSurf1 = dztot ;
-Point(11) = {RLay1,dztot,0,lc2*CLF};
-/*Point(12) = {0,dztot,0.0,lc1*CLF};		// not used
-
-/* layer 2 muscle */
-lc1 = REl1/10*CLF; lc2 = Fabs(REl1-RLay2)/10*CLF ; lc3 = dzLay2/10*CLF ;
-
-Point(13) = {0.0,dztot,0.0,lc1/20};
-Point(14) = {REl1,dztot,0.0,lc1/20};	/*attractor*/
-Point(15) = {RLay2,dztot,0,lc2/2};
-dztot = dztot - dzLay2/5 ;			/*attractor*/
-Point(16) = {RLay2,dztot,0.0,Sqrt(lc2 * lc3)/2};
-Point(17) = {0,dztot,0.0,Sqrt(lc1 * lc3)/2};
-dztot = dztot - 3*dzLay2/5 ;			/*attractor*/
-Point(18) = {RLay2,dztot,0.0,Sqrt(lc3* lc2)/2 };
-Point(19) = {0,dztot,0.0,Sqrt(lc3* lc1)/2};
-dztot = dztot - dzLay2/5 ; dzElecSurf2 = dztot ;
-Point(20) = {RLay2,dztot,0,lc2/2};	
-/*Point(21) = {0,dztot,0.0,lc1/20};		// not used
-
-/* electrode 2 */
-lc1 = REl2/100 ; 
-Point(22) = {0,dztot,0.0,lc1*CLF};
-Point(23) = {REl2,dztot,0,lc1/5*CLF};
-dztot = dztot - dzEl2 ;
-Point(24) = {REl2,dztot,0.0,1};
-Point(25) = {0,dztot,0.0,1};
-
-/* ElectrodeCenterEdge */
-Point(26) = {0,dzElecSurf1,0.0,1};
-Point(27) = {REl1,dzElecSurf1,0.0,1};
-Point(28) = {0,dzElecSurf2,0.0,1};
-Point(29) = {REl2,dzElecSurf2,0.0,1};
-
-
-Line(1) = {1,2};
-Line(2) = {2,3};
-Line(3) = {3,5};
-Line(4) = {5,1};
-Line(5) = {3,6};
-Line(6) = {6,7};
-Line(7) = {7,9};
-Line(8) = {9,5};
-Line(9) = {7,10};
-Line(10) = {10,11};
-Line(11) = {11,14};
-Line(12) = {14,13};
-Line(13) = {13,9};
-Line(14) = {11,15};
-Line(15) = {15,16};
-Line(16) = {16,18};
-Line(17) = {18,20};
-Line(18) = {20,23};
-Line(19) = {23,22};
-Line(20) = {22,19};
-Line(21) = {19,17};
-Line(22) = {17,13};
-Line(23) = {23,24};
-Line(24) = {24,25};
-Line(25) = {25,22};
-
-Line Loop(26) = {2,3,4,1};
-Plane Surface(27) = {26};
-Line Loop(28) = {5,6,7,8,-3};
-Plane Surface(29) = {28};
-Line Loop(30) = {9,10,11,12,13,-7};
-Plane Surface(31) = {30};
-Line Loop(32) = {15,16,17,18,19,20,21,22,-12,-11,14};
-Plane Surface(33) = {32};
-Physical Point(100) = {26,27,28,29};
-Physical Line(101) = {1};
-Physical Line(102) = {19};
-Physical Surface(1001) = {27};
-Physical Surface(1002) = {29};
-Physical Surface(1003) = {31};
-Physical Surface(1004) = {33};
-