YES activeU11ttMNmarkU12ttMNactiveU12ttMNmarksplusNMactiveplusN0markNactiveplusNsMmarkU11ttMNactiveU11X1X2X3U11activeX1X2X3activeU12X1X2X3U12activeX1X2X3activesXsactiveXactiveplusX1X2plusactiveX1X2activeplusX1X2plusX1activeX2U11markX1X2X3markU11X1X2X3U12markX1X2X3markU12X1X2X3smarkXmarksXplusmarkX1X2markplusX1X2plusX1markX2markplusX1X2properU11X1X2X3U11properX1properX2properX3properttokttproperU12X1X2X3U12properX1properX2properX3propersXsproperXproperplusX1X2plusproperX1properX2proper0ok0U11okX1okX2okX3okU11X1X2X3U12okX1okX2okX3okU12X1X2X3sokXoksXplusokX1okX2okplusX1X2topmarkXtopproperXtopokXtopactiveX2.11active111U113112223tt00mark111U123212223s111plus22122001proper111ok111top111activeU11ttMNmarkU12ttMNactiveU12ttMNmarksplusNMactiveplusNsMmarkU11ttMNactiveU11X1X2X3U11activeX1X2X3activeU12X1X2X3U12activeX1X2X3activesXsactiveXactiveplusX1X2plusactiveX1X2activeplusX1X2plusX1activeX2U11markX1X2X3markU11X1X2X3U12markX1X2X3markU12X1X2X3smarkXmarksXplusmarkX1X2markplusX1X2plusX1markX2markplusX1X2properU11X1X2X3U11properX1properX2properX3properttokttproperU12X1X2X3U12properX1properX2properX3propersXsproperXproperplusX1X2plusproperX1properX2proper0ok0U11okX1okX2okX3okU11X1X2X3U12okX1okX2okX3okU12X1X2X3sokXoksXplusokX1okX2okplusX1X2topmarkXtopproperXtopokXtopactiveX1active111U1131112223tt00mark111U1231212223s1111plus22122proper111ok111000top111activeU11ttMNmarkU12ttMNactiveU12ttMNmarksplusNMactiveU11X1X2X3U11activeX1X2X3activeU12X1X2X3U12activeX1X2X3activesXsactiveXactiveplusX1X2plusactiveX1X2activeplusX1X2plusX1activeX2U11markX1X2X3markU11X1X2X3U12markX1X2X3markU12X1X2X3smarkXmarksXplusmarkX1X2markplusX1X2plusX1markX2markplusX1X2properU11X1X2X3U11properX1properX2properX3properttokttproperU12X1X2X3U12properX1properX2properX3propersXsproperXproperplusX1X2plusproperX1properX2proper0ok0U11okX1okX2okX3okU11X1X2X3U12okX1okX2okX3okU12X1X2X3sokXoksXplusokX1okX2okplusX1X2topmarkXtopproperXtopokXtopactiveX1active111U1131212223tt00mark111U123212223s111plus22122proper111ok111000top111activeU12ttMNmarksplusNMactiveU11X1X2X3U11activeX1X2X3activeU12X1X2X3U12activeX1X2X3activesXsactiveXactiveplusX1X2plusactiveX1X2activeplusX1X2plusX1activeX2U11markX1X2X3markU11X1X2X3U12markX1X2X3markU12X1X2X3smarkXmarksXplusmarkX1X2markplusX1X2plusX1markX2markplusX1X2properU11X1X2X3U11properX1properX2properX3properttokttproperU12X1X2X3U12properX1properX2properX3propersXsproperXproperplusX1X2plusproperX1properX2proper0ok0U11okX1okX2okX3okU11X1X2X3U12okX1okX2okX3okU12X1X2X3sokXoksXplusokX1okX2okplusX1X2topmarkXtopproperXtopokXtopactiveX1active111U123211223tt02mark111s111plus22112U113112223proper111ok111000top111activeU11X1X2X3U11activeX1X2X3activeU12X1X2X3U12activeX1X2X3activesXsactiveXactiveplusX1X2plusactiveX1X2activeplusX1X2plusX1activeX2U11markX1X2X3markU11X1X2X3U12markX1X2X3markU12X1X2X3smarkXmarksXplusmarkX1X2markplusX1X2plusX1markX2markplusX1X2properU11X1X2X3U11properX1properX2properX3properttokttproperU12X1X2X3U12properX1properX2properX3propersXsproperXproperplusX1X2plusproperX1properX2proper0ok0U11okX1okX2okX3okU11X1X2X3U12okX1okX2okX3okU12X1X2X3sokXoksXplusokX1okX2okplusX1X2topmarkXtopproperXtopokXtopactiveX1active121U113212223U123212223s121plus22122mark1211proper111tt00ok121000top111activeU11X1X2X3U11activeX1X2X3activeU12X1X2X3U12activeX1X2X3activesXsactiveXactiveplusX1X2plusactiveX1X2activeplusX1X2plusX1activeX2properU11X1X2X3U11properX1properX2properX3properttokttproperU12X1X2X3U12properX1properX2properX3propersXsproperXproperplusX1X2plusproperX1properX2proper0ok0U11okX1okX2okX3okU11X1X2X3U12okX1okX2okX3okU12X1X2X3sokXoksXplusokX1okX2okplusX1X2topokXtopactiveX1active121U1132111213U1232111213s111plus222112proper1121tt00ok1121000top111activesXsactiveXproperU11X1X2X3U11properX1properX2properX3properttokttproperU12X1X2X3U12properX1properX2properX3propersXsproperXproperplusX1X2plusproperX1properX2proper0ok0U11okX1okX2okX3okU11X1X2X3U12okX1okX2okX3okU12X1X2X3sokXoksXplusokX1okX2okplusX1X21active121s1121proper121U113111213tt02ok1111U123112223plus212122002properU11X1X2X3U11properX1properX2properX3properU12X1X2X3U12properX1properX2properX31proper121U1131111213U1231212223AProVEAProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Statistics for single proof: 100.00 % (9 real / 0 unknown / 0 assumptions / 9 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe