{
    "Problem": [
        {
            "Lower bound": -Infinity, 
            "Number of constraints": 0, 
            "Number of objectives": 1, 
            "Number of variables": 4, 
            "Sense": "minimize", 
            "Upper bound": 1.9262327894076688e-07
        }
    ], 
    "Solution": [
        {
            "number of solutions": 1, 
            "number of solutions displayed": 1
        }, 
        {
            "Constraint": "No nonzero values", 
            "Objective": {
                "f": {
                    "Value": 1.9262327894076688e-07
                }
            }, 
            "Status": "bestSoFar", 
            "Variable": {
                "x1": {
                    "Value": -1.9262261916867863e-07
                }, 
                "x2": {
                    "Value": 1.500000812263556
                }, 
                "x3": {
                    "Value": -1.9999920999106249
                }
            }
        }
    ], 
    "Solver": [
        {
            "Final step length": 8.2411378581279042e-06, 
            "Number of iterations": 71, 
            "Status": "ok", 
            "Termination condition": "minStepLength"
        }
    ]
}
