Only generate IDICs when both upper- and lower-level solutions are in… #216

Job	Run time
Run tests (ubuntu-20.04, true, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libnau...	9m 11s
Run tests (ubuntu-20.04, false, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libna...	8m 48s
Run tests (ubuntu-22.04, true, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libnau...	8m 58s
Run tests (ubuntu-22.04, false, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libna...	9m 10s
Run tests (macos-13, false, brew install metis bash, CC=clang OSX=13)	15m 26s
Run tests (macos-13, false, brew install metis bash, CC=gcc-13 CXX=g++-13 OSX=13 ADD_CXXFLAGS=-Wl...	20m 52s
Run tests (macos-14, false, brew install metis bash, arm64, CC=gcc-13 CXX=g++-13 OSX=14 ADD_CXXFL...	8m 22s
	1h 20m 47s

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