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diff --git a/tests/general_tests/cbcintlinprog/cbcintlinprog_ub2.sce b/tests/general_tests/cbcintlinprog/cbcintlinprog_ub2.sce
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+// Check if a user specifies coefficients of linear inequality contraints of the correct dimensions 
+
+// Reference : Example 2 -1, Travelling salesman , Hamdy A. Taha. "Operations Research-An Introduction", 9E(2014))
+
+// Objective function
+c = [1000,10,17,15,20,1000,19,18,50,44,1000,22,45,40,20,1000]';
+
+// Lower Bound of variable
+lb = repmat(1,1,16) ;
+// Upper Bound of variables
+ub = "[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]";
+
+// Constraint Matrix
+Aeq=[1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0;
+     0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0;
+     0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0;
+     0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1;
+     1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0;
+     0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0;
+     0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0;
+     0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1;]
+
+beq=repmat(1,1,8)
+
+intcon = 1:1:16 ;
+
+// Calling cbcintlinprog
+[x,f,status,output] = cbcintlinprog(c,intcon,[],[],Aeq,beq,lb,ub)
+// !--error 10000 
+//cbcintlinprog: Expected type ["constant"] for input argument ub at input #8, but got "string" instead.
+//at line      56 of function Checktype called by :  
+//at line      70 of function cbcmatrixintlinprog called by :  
+//at line     203 of function cbcintlinprog called by :  
+//[x,f,status,output] = cbcintlinprog(c,intcon,[],[],Aeq,beq,lb,ub)
+//at line      28 of exec file called by :    
+//exec cbcintlinprog_ub2.sce