-> [ 0.000000] (0:maestro@) 1: iRecv(mbox=0)
-> [ 0.000000] (0:maestro@) 2: iSend(mbox=0)
-> [ 0.000000] (0:maestro@) 1: WaitComm(from 2 to 1, mbox=0, no timeout)
-> [ 0.000000] (0:maestro@) 1: iRecv(mbox=0)
-> [ 0.000000] (0:maestro@) 2: WaitComm(from 2 to 1, mbox=0, no timeout)
-> [ 0.000000] (0:maestro@) 4: iSend(mbox=0)
-> [ 0.000000] (0:maestro@) 1: WaitComm(from 4 to 1, mbox=0, no timeout)
-> [ 0.000000] (0:maestro@) 1: iRecv(mbox=0)
-> [ 0.000000] (0:maestro@) 3: iSend(mbox=0)
-> [ 0.000000] (0:maestro@) 1: WaitComm(from 3 to 1, mbox=0, no timeout)
-> [ 0.000000] (0:maestro@) Path = 1;2;1;1;2;4;1;1;3;1
-> [ 0.000000] (0:maestro@) DFS exploration ended. 22 unique states visited; 4 backtracks (56 transition replays, 30 states visited overall)
\ No newline at end of file
+> [ 0.000000] (0:maestro@) Actor 1 in Irecv ==> simcall: iRecv(mbox=0)
+> [ 0.000000] (0:maestro@) Actor 2 in Isend ==> simcall: iSend(mbox=0)
+> [ 0.000000] (0:maestro@) Actor 1 in Wait ==> simcall: WaitComm(from 2 to 1, mbox=0, no timeout)
+> [ 0.000000] (0:maestro@) Actor 1 in Irecv ==> simcall: iRecv(mbox=0)
+> [ 0.000000] (0:maestro@) Actor 2 in Wait ==> simcall: WaitComm(from 2 to 1, mbox=0, no timeout)
+> [ 0.000000] (0:maestro@) Actor 4 in Isend ==> simcall: iSend(mbox=0)
+> [ 0.000000] (0:maestro@) Actor 1 in Wait ==> simcall: WaitComm(from 4 to 1, mbox=0, no timeout)
+> [ 0.000000] (0:maestro@) Actor 1 in Irecv ==> simcall: iRecv(mbox=0)
+> [ 0.000000] (0:maestro@) Actor 3 in Isend ==> simcall: iSend(mbox=0)
+> [ 0.000000] (0:maestro@) Actor 1 in Wait ==> simcall: WaitComm(from 3 to 1, mbox=0, no timeout)
+> [ 0.000000] (0:maestro@) You can debug the problem (and see the whole details) by rerunning out of simgrid-mc with --cfg=model-check/replay:'1;2;1;1;2;4;1;1;3;1'
+> [ 0.000000] (0:maestro@) DFS exploration ended. 19 unique states visited; 2 backtracks (12 transition replays, 33 states visited overall)