planner.py version 0.0.1 Time: 0.38s Memory: 89MB Iteration 1 Queue: [(0,0,0,True), (1,5,0,True), (2,10,0,True), (3,15,0,True), (4,20,0,True), (5,25,0,True), (6,30,0,True)] Grounded Until: 0 Solving... Solving Time: 0.01s Memory: 89MB (+0MB) UNSAT Iteration Time: 0.01s Iteration 2 Queue: [(1,5,0,True), (2,10,0,True), (3,15,0,True), (4,20,0,True), (5,25,0,True), (6,30,0,True)] Grounded Until: 0 Grounding... [('step', [1]), ('step', [2]), ('step', [3]), ('step', [4]), ('step', [5]), ('check', [5])] Grounding Time: 0.02s Memory: 89MB (+0MB) Unblocking actions... Solving... Solving Time: 0.00s Memory: 89MB (+0MB) UNSAT Iteration Time: 0.03s Iteration 3 Queue: [(2,10,0,True), (3,15,0,True), (4,20,0,True), (5,25,0,True), (6,30,0,True)] Grounded Until: 5 Grounding... [('step', [6]), ('step', [7]), ('step', [8]), ('step', [9]), ('step', [10]), ('check', [10])] Grounding Time: 0.02s Memory: 89MB (+0MB) Unblocking actions... Solving... Solving Time: 0.10s Memory: 89MB (+0MB) UNSAT Iteration Time: 0.13s Iteration 4 Queue: [(3,15,0,True), (4,20,0,True), (5,25,0,True), (6,30,0,True)] Grounded Until: 10 Grounding... [('step', [11]), ('step', [12]), ('step', [13]), ('step', [14]), ('step', [15]), ('check', [15])] Grounding Time: 0.02s Memory: 89MB (+0MB) Unblocking actions... Solving... Solving Time: 0.30s Memory: 89MB (+0MB) UNKNOWN Iteration Time: 0.33s Iteration 5 Queue: [(4,20,0,True), (5,25,0,True), (6,30,0,True)] Grounded Until: 15 Grounding... [('step', [16]), ('step', [17]), ('step', [18]), ('step', [19]), ('step', [20]), ('check', [20])] Grounding Time: 0.02s Memory: 89MB (+0MB) Unblocking actions... Solving... Solving Time: 0.31s Memory: 89MB (+0MB) UNKNOWN Iteration Time: 0.34s Iteration 6 Queue: [(5,25,0,True), (6,30,0,True)] Grounded Until: 20 Grounding... [('step', [21]), ('step', [22]), ('step', [23]), ('step', [24]), ('step', [25]), ('check', [25])] Grounding Time: 0.06s Memory: 92MB (+3MB) Unblocking actions... Solving... Solving Time: 0.31s Memory: 93MB (+1MB) UNKNOWN Iteration Time: 0.38s Iteration 7 Queue: [(6,30,0,True)] Grounded Until: 25 Grounding... [('step', [26]), ('step', [27]), ('step', [28]), ('step', [29]), ('step', [30]), ('check', [30])] Grounding Time: 0.02s Memory: 93MB (+0MB) Unblocking actions... Solving... Solving Time: 0.34s Memory: 94MB (+1MB) UNKNOWN Iteration Time: 0.37s Iteration 8 Queue: [(3,15,1,True), (4,20,1,True), (5,25,1,True), (6,30,1,True), (7,35,0,True), (8,40,0,True), (9,45,0,True), (10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 30 Blocking actions... Solving... Solving Time: 0.40s Memory: 94MB (+0MB) UNKNOWN Iteration Time: 0.41s Iteration 9 Queue: [(4,20,1,True), (5,25,1,True), (6,30,1,True), (7,35,0,True), (8,40,0,True), (9,45,0,True), (10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 30 Unblocking actions... Solving... Solving Time: 0.38s Memory: 94MB (+0MB) UNKNOWN Iteration Time: 0.38s Iteration 10 Queue: [(5,25,1,True), (6,30,1,True), (7,35,0,True), (8,40,0,True), (9,45,0,True), (10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 30 Unblocking actions... Solving... Solving Time: 0.40s Memory: 94MB (+0MB) UNKNOWN Iteration Time: 0.40s Iteration 11 Queue: [(6,30,1,True), (7,35,0,True), (8,40,0,True), (9,45,0,True), (10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 30 Unblocking actions... Solving... Solving Time: 0.40s Memory: 94MB (+0MB) UNKNOWN Iteration Time: 0.40s Iteration 12 Queue: [(7,35,0,True), (8,40,0,True), (9,45,0,True), (10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 30 Grounding... [('step', [31]), ('step', [32]), ('step', [33]), ('step', [34]), ('step', [35]), ('check', [35])] Grounding Time: 0.02s Memory: 94MB (+0MB) Unblocking actions... Solving... Solving Time: 0.38s Memory: 96MB (+2MB) UNKNOWN Iteration Time: 0.41s Iteration 13 Queue: [(8,40,0,True), (9,45,0,True), (10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 35 Grounding... [('step', [36]), ('step', [37]), ('step', [38]), ('step', [39]), ('step', [40]), ('check', [40])] Grounding Time: 0.02s Memory: 96MB (+0MB) Unblocking actions... Solving... Solving Time: 0.41s Memory: 97MB (+1MB) UNKNOWN Iteration Time: 0.44s Iteration 14 Queue: [(9,45,0,True), (10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 40 Grounding... [('step', [41]), ('step', [42]), ('step', [43]), ('step', [44]), ('step', [45]), ('check', [45])] Grounding Time: 0.02s Memory: 97MB (+0MB) Unblocking actions... Solving... Solving Time: 0.41s Memory: 97MB (+0MB) UNKNOWN Iteration Time: 0.44s Iteration 15 Queue: [(10,50,0,True), (11,55,0,True), (12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 45 Grounding... [('step', [46]), ('step', [47]), ('step', [48]), ('step', [49]), ('step', [50]), ('check', [50])] Grounding Time: 0.02s Memory: 97MB (+0MB) Unblocking actions... Solving... Solving Time: 0.43s Memory: 97MB (+0MB) UNKNOWN Iteration Time: 0.46s Iteration 16 Queue: [(11,55,0,True), (12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 50 Grounding... [('step', [51]), ('step', [52]), ('step', [53]), ('step', [54]), ('step', [55]), ('check', [55])] Grounding Time: 0.02s Memory: 97MB (+0MB) Unblocking actions... Solving... Solving Time: 0.43s Memory: 99MB (+2MB) UNKNOWN Iteration Time: 0.47s Iteration 17 Queue: [(12,60,0,True), (13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 55 Grounding... [('step', [56]), ('step', [57]), ('step', [58]), ('step', [59]), ('step', [60]), ('check', [60])] Grounding Time: 0.02s Memory: 99MB (+0MB) Unblocking actions... Solving... Solving Time: 0.42s Memory: 101MB (+2MB) UNKNOWN Iteration Time: 0.45s Iteration 18 Queue: [(13,65,0,True), (14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 60 Grounding... [('step', [61]), ('step', [62]), ('step', [63]), ('step', [64]), ('step', [65]), ('check', [65])] Grounding Time: 0.02s Memory: 101MB (+0MB) Unblocking actions... Solving... Solving Time: 0.42s Memory: 101MB (+0MB) UNKNOWN Iteration Time: 0.46s Iteration 19 Queue: [(14,70,0,True), (15,75,0,True), (16,80,0,True)] Grounded Until: 65 Grounding... [('step', [66]), ('step', [67]), ('step', [68]), ('step', [69]), ('step', [70]), ('check', [70])] Grounding Time: 0.02s Memory: 101MB (+0MB) Unblocking actions... Solving... Solving Time: 0.36s Memory: 101MB (+0MB) UNKNOWN Iteration Time: 0.39s Iteration 20 Queue: [(15,75,0,True), (16,80,0,True)] Grounded Until: 70 Grounding... [('step', [71]), ('step', [72]), ('step', [73]), ('step', [74]), ('step', [75]), ('check', [75])] Grounding Time: 0.02s Memory: 101MB (+0MB) Unblocking actions... Solving... Solving Time: 0.45s Memory: 103MB (+2MB) UNKNOWN Iteration Time: 0.49s Iteration 21 Queue: [(16,80,0,True)] Grounded Until: 75 Grounding... [('step', [76]), ('step', [77]), ('step', [78]), ('step', [79]), ('step', [80]), ('check', [80])] Grounding Time: 0.02s Memory: 103MB (+0MB) Unblocking actions... Solving... Solving Time: 0.37s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.41s Iteration 22 Queue: [(3,15,2,True), (4,20,2,True), (5,25,2,True), (6,30,2,True), (7,35,1,True), (8,40,1,True), (9,45,1,True), (10,50,1,True), (11,55,1,True), (12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Blocking actions... Solving... Solving Time: 0.52s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.53s Iteration 23 Queue: [(4,20,2,True), (5,25,2,True), (6,30,2,True), (7,35,1,True), (8,40,1,True), (9,45,1,True), (10,50,1,True), (11,55,1,True), (12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.57s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.58s Iteration 24 Queue: [(5,25,2,True), (6,30,2,True), (7,35,1,True), (8,40,1,True), (9,45,1,True), (10,50,1,True), (11,55,1,True), (12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.56s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.57s Iteration 25 Queue: [(6,30,2,True), (7,35,1,True), (8,40,1,True), (9,45,1,True), (10,50,1,True), (11,55,1,True), (12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.55s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.56s Iteration 26 Queue: [(7,35,1,True), (8,40,1,True), (9,45,1,True), (10,50,1,True), (11,55,1,True), (12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.51s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.52s Iteration 27 Queue: [(8,40,1,True), (9,45,1,True), (10,50,1,True), (11,55,1,True), (12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.59s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.60s Iteration 28 Queue: [(9,45,1,True), (10,50,1,True), (11,55,1,True), (12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.56s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.56s Iteration 29 Queue: [(10,50,1,True), (11,55,1,True), (12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.51s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.51s Iteration 30 Queue: [(11,55,1,True), (12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.50s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.50s Iteration 31 Queue: [(12,60,1,True), (13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.48s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.49s Iteration 32 Queue: [(13,65,1,True), (14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.49s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.50s Iteration 33 Queue: [(14,70,1,True), (15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.51s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.52s Iteration 34 Queue: [(15,75,1,True), (16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.46s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.47s Iteration 35 Queue: [(16,80,1,True), (17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Unblocking actions... Solving... Solving Time: 0.50s Memory: 103MB (+0MB) UNKNOWN Iteration Time: 0.50s Iteration 36 Queue: [(17,85,0,True), (18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 80 Grounding... [('step', [81]), ('step', [82]), ('step', [83]), ('step', [84]), ('step', [85]), ('check', [85])] Grounding Time: 0.02s Memory: 103MB (+0MB) Unblocking actions... Solving... Solving Time: 0.52s Memory: 106MB (+3MB) UNKNOWN Iteration Time: 0.56s Iteration 37 Queue: [(18,90,0,True), (19,95,0,True), (20,100,0,True)] Grounded Until: 85 Grounding... [('step', [86]), ('step', [87]), ('step', [88]), ('step', [89]), ('step', [90]), ('check', [90])] Grounding Time: 0.02s Memory: 106MB (+0MB) Unblocking actions... Solving... Solving Time: 0.57s Memory: 106MB (+0MB) UNKNOWN Iteration Time: 0.62s Iteration 38 Queue: [(19,95,0,True), (20,100,0,True)] Grounded Until: 90 Grounding... [('step', [91]), ('step', [92]), ('step', [93]), ('step', [94]), ('step', [95]), ('check', [95])] Grounding Time: 0.02s Memory: 106MB (+0MB) Unblocking actions... Solving... Solving Time: 0.67s Memory: 107MB (+1MB) UNKNOWN Iteration Time: 0.71s Iteration 39 Queue: [(20,100,0,True)] Grounded Until: 95 Grounding... [('step', [96]), ('step', [97]), ('step', [98]), ('step', [99]), ('step', [100]), ('check', [100])] Grounding Time: 0.02s Memory: 107MB (+0MB) Unblocking actions... Solving... Solving Time: 0.51s Memory: 107MB (+0MB) UNKNOWN Iteration Time: 0.56s Iteration 40 Queue: [(3,15,3,True), (4,20,3,True), (5,25,3,True), (6,30,3,True), (7,35,2,True), (8,40,2,True), (9,45,2,True), (10,50,2,True), (11,55,2,True), (12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Blocking actions... Solving... Solving Time: 0.63s Memory: 107MB (+0MB) UNKNOWN Iteration Time: 0.63s Iteration 41 Queue: [(4,20,3,True), (5,25,3,True), (6,30,3,True), (7,35,2,True), (8,40,2,True), (9,45,2,True), (10,50,2,True), (11,55,2,True), (12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.75s Memory: 107MB (+0MB) UNKNOWN Iteration Time: 0.76s Iteration 42 Queue: [(5,25,3,True), (6,30,3,True), (7,35,2,True), (8,40,2,True), (9,45,2,True), (10,50,2,True), (11,55,2,True), (12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.66s Memory: 107MB (+0MB) UNKNOWN Iteration Time: 0.67s Iteration 43 Queue: [(6,30,3,True), (7,35,2,True), (8,40,2,True), (9,45,2,True), (10,50,2,True), (11,55,2,True), (12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.65s Memory: 107MB (+0MB) UNKNOWN Iteration Time: 0.66s Iteration 44 Queue: [(7,35,2,True), (8,40,2,True), (9,45,2,True), (10,50,2,True), (11,55,2,True), (12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.73s Memory: 107MB (+0MB) UNKNOWN Iteration Time: 0.74s Iteration 45 Queue: [(8,40,2,True), (9,45,2,True), (10,50,2,True), (11,55,2,True), (12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.65s Memory: 108MB (+1MB) UNKNOWN Iteration Time: 0.65s Iteration 46 Queue: [(9,45,2,True), (10,50,2,True), (11,55,2,True), (12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.61s Memory: 108MB (+0MB) UNKNOWN Iteration Time: 0.61s Iteration 47 Queue: [(10,50,2,True), (11,55,2,True), (12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.61s Memory: 108MB (+0MB) UNKNOWN Iteration Time: 0.61s Iteration 48 Queue: [(11,55,2,True), (12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.62s Memory: 108MB (+0MB) UNKNOWN Iteration Time: 0.62s Iteration 49 Queue: [(12,60,2,True), (13,65,2,False), (14,70,2,False), (15,75,2,False), (16,80,2,False), (17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.62s Memory: 108MB (+0MB) UNKNOWN Iteration Time: 0.63s Iteration 50 Queue: [(17,85,1,True), (18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.77s Memory: 108MB (+0MB) UNKNOWN Iteration Time: 0.78s Iteration 51 Queue: [(18,90,1,True), (19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.62s Memory: 108MB (+0MB) UNKNOWN Iteration Time: 0.63s Iteration 52 Queue: [(19,95,1,True), (20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.62s Memory: 108MB (+0MB) UNKNOWN Iteration Time: 0.62s Iteration 53 Queue: [(20,100,1,True), (21,105,0,True), (22,110,0,True)] Grounded Until: 100 Unblocking actions... Solving... Solving Time: 0.59s Memory: 108MB (+0MB) UNKNOWN Iteration Time: 0.60s Iteration 54 Queue: [(21,105,0,True), (22,110,0,True)] Grounded Until: 100 Grounding... [('step', [101]), ('step', [102]), ('step', [103]), ('step', [104]), ('step', [105]), ('check', [105])] Grounding Time: 0.02s Memory: 109MB (+1MB) Unblocking actions... Solving... Solving Time: 0.59s Memory: 110MB (+1MB) UNKNOWN Iteration Time: 0.64s Iteration 55 Queue: [(22,110,0,True)] Grounded Until: 105 Grounding... [('step', [106]), ('step', [107]), ('step', [108]), ('step', [109]), ('step', [110]), ('check', [110])] Grounding Time: 0.02s Memory: 110MB (+0MB) Unblocking actions... Solving... Solving Time: 0.66s Memory: 111MB (+1MB) UNKNOWN Iteration Time: 0.71s Iteration 56 Queue: [(3,15,4,True), (4,20,4,True), (5,25,4,True), (6,30,4,True), (7,35,3,True), (8,40,3,True), (9,45,3,True), (10,50,3,False), (11,55,3,False), (12,60,3,False), (13,65,2,True), (14,70,2,True), (15,75,2,False), (16,80,2,False), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,1,True), (22,110,1,True)] Grounded Until: 110 Blocking actions... Solving... Solving Time: 0.73s Memory: 111MB (+0MB) UNKNOWN Iteration Time: 0.73s Iteration 57 Queue: [(4,20,4,True), (5,25,4,True), (6,30,4,True), (7,35,3,True), (8,40,3,True), (9,45,3,True), (10,50,3,False), (11,55,3,False), (12,60,3,False), (13,65,2,True), (14,70,2,True), (15,75,2,False), (16,80,2,False), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,1,True), (22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.75s Memory: 111MB (+0MB) UNKNOWN Iteration Time: 0.76s Iteration 58 Queue: [(5,25,4,True), (6,30,4,True), (7,35,3,True), (8,40,3,True), (9,45,3,True), (10,50,3,False), (11,55,3,False), (12,60,3,False), (13,65,2,True), (14,70,2,True), (15,75,2,False), (16,80,2,False), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,1,True), (22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.70s Memory: 111MB (+0MB) UNKNOWN Iteration Time: 0.70s Iteration 59 Queue: [(6,30,4,True), (7,35,3,True), (8,40,3,True), (9,45,3,True), (10,50,3,False), (11,55,3,False), (12,60,3,False), (13,65,2,True), (14,70,2,True), (15,75,2,False), (16,80,2,False), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,1,True), (22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.81s Memory: 111MB (+0MB) UNKNOWN Iteration Time: 0.82s Iteration 60 Queue: [(7,35,3,True), (8,40,3,True), (9,45,3,True), (10,50,3,False), (11,55,3,False), (12,60,3,False), (13,65,2,True), (14,70,2,True), (15,75,2,False), (16,80,2,False), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,1,True), (22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.72s Memory: 111MB (+0MB) UNKNOWN Iteration Time: 0.72s Iteration 61 Queue: [(8,40,3,True), (9,45,3,True), (10,50,3,False), (11,55,3,False), (12,60,3,False), (13,65,2,True), (14,70,2,True), (15,75,2,False), (16,80,2,False), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,1,True), (22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.72s Memory: 111MB (+0MB) UNKNOWN Iteration Time: 0.73s Iteration 62 Queue: [(9,45,3,True), (10,50,3,False), (11,55,3,False), (12,60,3,False), (13,65,2,True), (14,70,2,True), (15,75,2,False), (16,80,2,False), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,1,True), (22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.70s Memory: 112MB (+1MB) UNKNOWN Iteration Time: 0.70s Iteration 63 Queue: [(13,65,2,True), (14,70,2,True), (15,75,2,False), (16,80,2,False), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,1,True), (22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.68s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.69s Iteration 64 Queue: [(14,70,2,True), (15,75,2,False), (16,80,2,False), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,1,True), (22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.65s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.66s Iteration 65 Queue: [(21,105,1,True), (22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.74s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.75s Iteration 66 Queue: [(22,110,1,True)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.65s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.65s Iteration 67 Queue: [(3,15,5,True), (4,20,5,True), (5,25,5,True), (6,30,5,False), (7,35,4,True), (8,40,4,True), (9,45,4,False), (10,50,3,True), (11,55,3,True), (12,60,3,False), (13,65,3,False), (14,70,3,False), (15,75,2,True), (16,80,2,True), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Blocking actions... Solving... Solving Time: 0.71s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.71s Iteration 68 Queue: [(4,20,5,True), (5,25,5,True), (6,30,5,False), (7,35,4,True), (8,40,4,True), (9,45,4,False), (10,50,3,True), (11,55,3,True), (12,60,3,False), (13,65,3,False), (14,70,3,False), (15,75,2,True), (16,80,2,True), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.79s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.80s Iteration 69 Queue: [(5,25,5,True), (6,30,5,False), (7,35,4,True), (8,40,4,True), (9,45,4,False), (10,50,3,True), (11,55,3,True), (12,60,3,False), (13,65,3,False), (14,70,3,False), (15,75,2,True), (16,80,2,True), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.75s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.76s Iteration 70 Queue: [(7,35,4,True), (8,40,4,True), (9,45,4,False), (10,50,3,True), (11,55,3,True), (12,60,3,False), (13,65,3,False), (14,70,3,False), (15,75,2,True), (16,80,2,True), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.68s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.69s Iteration 71 Queue: [(8,40,4,True), (9,45,4,False), (10,50,3,True), (11,55,3,True), (12,60,3,False), (13,65,3,False), (14,70,3,False), (15,75,2,True), (16,80,2,True), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.71s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.72s Iteration 72 Queue: [(10,50,3,True), (11,55,3,True), (12,60,3,False), (13,65,3,False), (14,70,3,False), (15,75,2,True), (16,80,2,True), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.64s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.65s Iteration 73 Queue: [(11,55,3,True), (12,60,3,False), (13,65,3,False), (14,70,3,False), (15,75,2,True), (16,80,2,True), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.67s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.68s Iteration 74 Queue: [(15,75,2,True), (16,80,2,True), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.68s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.68s Iteration 75 Queue: [(16,80,2,True), (17,85,2,False), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.68s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.68s Iteration 76 Queue: [(3,15,6,True), (4,20,6,True), (5,25,6,True), (6,30,5,True), (7,35,5,True), (8,40,5,False), (9,45,4,True), (10,50,4,False), (11,55,4,False), (12,60,3,True), (13,65,3,False), (14,70,3,False), (15,75,3,False), (16,80,3,False), (17,85,2,True), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Blocking actions... Solving... Solving Time: 0.77s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.78s Iteration 77 Queue: [(4,20,6,True), (5,25,6,True), (6,30,5,True), (7,35,5,True), (8,40,5,False), (9,45,4,True), (10,50,4,False), (11,55,4,False), (12,60,3,True), (13,65,3,False), (14,70,3,False), (15,75,3,False), (16,80,3,False), (17,85,2,True), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.84s Memory: 112MB (+0MB) UNKNOWN Iteration Time: 0.85s Iteration 78 Queue: [(5,25,6,True), (6,30,5,True), (7,35,5,True), (8,40,5,False), (9,45,4,True), (10,50,4,False), (11,55,4,False), (12,60,3,True), (13,65,3,False), (14,70,3,False), (15,75,3,False), (16,80,3,False), (17,85,2,True), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.84s Memory: 113MB (+1MB) UNKNOWN Iteration Time: 0.84s Iteration 79 Queue: [(6,30,5,True), (7,35,5,True), (8,40,5,False), (9,45,4,True), (10,50,4,False), (11,55,4,False), (12,60,3,True), (13,65,3,False), (14,70,3,False), (15,75,3,False), (16,80,3,False), (17,85,2,True), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.78s Memory: 113MB (+0MB) UNKNOWN Iteration Time: 0.78s Iteration 80 Queue: [(7,35,5,True), (8,40,5,False), (9,45,4,True), (10,50,4,False), (11,55,4,False), (12,60,3,True), (13,65,3,False), (14,70,3,False), (15,75,3,False), (16,80,3,False), (17,85,2,True), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.79s Memory: 113MB (+0MB) UNKNOWN Iteration Time: 0.80s Iteration 81 Queue: [(9,45,4,True), (10,50,4,False), (11,55,4,False), (12,60,3,True), (13,65,3,False), (14,70,3,False), (15,75,3,False), (16,80,3,False), (17,85,2,True), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.74s Memory: 113MB (+0MB) UNKNOWN Iteration Time: 0.75s Iteration 82 Queue: [(12,60,3,True), (13,65,3,False), (14,70,3,False), (15,75,3,False), (16,80,3,False), (17,85,2,True), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.64s Memory: 113MB (+0MB) UNKNOWN Iteration Time: 0.64s Iteration 83 Queue: [(17,85,2,True), (18,90,2,False), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.72s Memory: 113MB (+0MB) UNKNOWN Iteration Time: 0.72s Iteration 84 Queue: [(3,15,7,True), (4,20,7,True), (5,25,7,False), (6,30,6,True), (7,35,6,False), (8,40,5,True), (9,45,5,False), (10,50,4,True), (11,55,4,False), (12,60,4,False), (13,65,3,True), (14,70,3,True), (15,75,3,False), (16,80,3,False), (17,85,3,False), (18,90,2,True), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Blocking actions... Solving... Solving Time: 0.76s Memory: 113MB (+0MB) UNKNOWN Iteration Time: 0.77s Iteration 85 Queue: [(4,20,7,True), (5,25,7,False), (6,30,6,True), (7,35,6,False), (8,40,5,True), (9,45,5,False), (10,50,4,True), (11,55,4,False), (12,60,4,False), (13,65,3,True), (14,70,3,True), (15,75,3,False), (16,80,3,False), (17,85,3,False), (18,90,2,True), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.77s Memory: 114MB (+1MB) UNKNOWN Iteration Time: 0.78s Iteration 86 Queue: [(6,30,6,True), (7,35,6,False), (8,40,5,True), (9,45,5,False), (10,50,4,True), (11,55,4,False), (12,60,4,False), (13,65,3,True), (14,70,3,True), (15,75,3,False), (16,80,3,False), (17,85,3,False), (18,90,2,True), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.74s Memory: 114MB (+0MB) UNKNOWN Iteration Time: 0.74s Iteration 87 Queue: [(8,40,5,True), (9,45,5,False), (10,50,4,True), (11,55,4,False), (12,60,4,False), (13,65,3,True), (14,70,3,True), (15,75,3,False), (16,80,3,False), (17,85,3,False), (18,90,2,True), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.76s Memory: 114MB (+0MB) UNKNOWN Iteration Time: 0.76s Iteration 88 Queue: [(10,50,4,True), (11,55,4,False), (12,60,4,False), (13,65,3,True), (14,70,3,True), (15,75,3,False), (16,80,3,False), (17,85,3,False), (18,90,2,True), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.72s Memory: 114MB (+0MB) UNKNOWN Iteration Time: 0.73s Iteration 89 Queue: [(13,65,3,True), (14,70,3,True), (15,75,3,False), (16,80,3,False), (17,85,3,False), (18,90,2,True), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Solving Time: 0.71s Memory: 114MB (+0MB) UNKNOWN Iteration Time: 0.71s Iteration 90 Queue: [(14,70,3,True), (15,75,3,False), (16,80,3,False), (17,85,3,False), (18,90,2,True), (19,95,2,False), (20,100,2,False), (21,105,2,False), (22,110,2,False)] Grounded Until: 110 Unblocking actions... Solving... Answer: 1 occurs(action(("pick",constant("ball9"),constant("rooma"),constant("right"))),1) occurs(action(("move",constant("rooma"),constant("roomb"))),2) occurs(action(("drop",constant("ball9"),constant("roomb"),constant("right"))),3) occurs(action(("move",constant("roomb"),constant("rooma"))),4) occurs(action(("pick",constant("ball7"),constant("rooma"),constant("right"))),5) occurs(action(("move",constant("rooma"),constant("roomb"))),6) occurs(action(("drop",constant("ball7"),constant("roomb"),constant("right"))),7) occurs(action(("move",constant("roomb"),constant("rooma"))),8) occurs(action(("pick",constant("ball6"),constant("rooma"),constant("left"))),9) occurs(action(("move",constant("rooma"),constant("roomb"))),10) occurs(action(("drop",constant("ball6"),constant("roomb"),constant("left"))),11) occurs(action(("pick",constant("ball9"),constant("roomb"),constant("right"))),12) occurs(action(("pick",constant("ball7"),constant("roomb"),constant("left"))),13) occurs(action(("drop",constant("ball9"),constant("roomb"),constant("right"))),14) occurs(action(("drop",constant("ball7"),constant("roomb"),constant("left"))),15) occurs(action(("move",constant("roomb"),constant("rooma"))),16) occurs(action(("pick",constant("ball2"),constant("rooma"),constant("left"))),17) occurs(action(("pick",constant("ball10"),constant("rooma"),constant("right"))),18) occurs(action(("drop",constant("ball10"),constant("rooma"),constant("right"))),19) occurs(action(("pick",constant("ball8"),constant("rooma"),constant("right"))),20) occurs(action(("move",constant("rooma"),constant("roomb"))),21) occurs(action(("drop",constant("ball2"),constant("roomb"),constant("left"))),22) occurs(action(("pick",constant("ball6"),constant("roomb"),constant("left"))),23) occurs(action(("drop",constant("ball8"),constant("roomb"),constant("right"))),24) occurs(action(("drop",constant("ball6"),constant("roomb"),constant("left"))),25) occurs(action(("move",constant("roomb"),constant("rooma"))),26) occurs(action(("pick",constant("ball3"),constant("rooma"),constant("right"))),27) occurs(action(("pick",constant("ball1"),constant("rooma"),constant("left"))),28) occurs(action(("move",constant("rooma"),constant("roomb"))),29) occurs(action(("drop",constant("ball1"),constant("roomb"),constant("left"))),30) occurs(action(("pick",constant("ball1"),constant("roomb"),constant("left"))),31) occurs(action(("move",constant("roomb"),constant("rooma"))),32) occurs(action(("drop",constant("ball1"),constant("rooma"),constant("left"))),33) occurs(action(("pick",constant("ball4"),constant("rooma"),constant("left"))),34) occurs(action(("drop",constant("ball4"),constant("rooma"),constant("left"))),35) occurs(action(("pick",constant("ball5"),constant("rooma"),constant("left"))),36) occurs(action(("move",constant("rooma"),constant("roomb"))),37) occurs(action(("drop",constant("ball3"),constant("roomb"),constant("right"))),38) occurs(action(("drop",constant("ball5"),constant("roomb"),constant("left"))),39) occurs(action(("pick",constant("ball5"),constant("roomb"),constant("left"))),40) occurs(action(("drop",constant("ball5"),constant("roomb"),constant("left"))),41) occurs(action(("pick",constant("ball5"),constant("roomb"),constant("right"))),42) occurs(action(("pick",constant("ball8"),constant("roomb"),constant("left"))),43) occurs(action(("drop",constant("ball8"),constant("roomb"),constant("left"))),44) occurs(action(("move",constant("roomb"),constant("rooma"))),45) occurs(action(("pick",constant("ball1"),constant("rooma"),constant("left"))),46) occurs(action(("move",constant("rooma"),constant("roomb"))),47) occurs(action(("drop",constant("ball1"),constant("roomb"),constant("left"))),48) occurs(action(("drop",constant("ball5"),constant("roomb"),constant("right"))),49) occurs(action(("pick",constant("ball9"),constant("roomb"),constant("right"))),50) occurs(action(("move",constant("roomb"),constant("rooma"))),51) occurs(action(("drop",constant("ball9"),constant("rooma"),constant("right"))),52) occurs(action(("pick",constant("ball4"),constant("rooma"),constant("left"))),53) occurs(action(("move",constant("rooma"),constant("roomb"))),54) occurs(action(("drop",constant("ball4"),constant("roomb"),constant("left"))),55) occurs(action(("pick",constant("ball1"),constant("roomb"),constant("right"))),56) occurs(action(("move",constant("roomb"),constant("rooma"))),57) occurs(action(("pick",constant("ball10"),constant("rooma"),constant("left"))),58) occurs(action(("drop",constant("ball10"),constant("rooma"),constant("left"))),59) occurs(action(("drop",constant("ball1"),constant("rooma"),constant("right"))),60) occurs(action(("pick",constant("ball10"),constant("rooma"),constant("right"))),61) occurs(action(("move",constant("rooma"),constant("roomb"))),62) occurs(action(("drop",constant("ball10"),constant("roomb"),constant("right"))),63) occurs(action(("move",constant("roomb"),constant("rooma"))),64) occurs(action(("pick",constant("ball1"),constant("rooma"),constant("right"))),65) occurs(action(("pick",constant("ball9"),constant("rooma"),constant("left"))),66) occurs(action(("move",constant("rooma"),constant("roomb"))),67) occurs(action(("drop",constant("ball9"),constant("roomb"),constant("left"))),68) occurs(action(("drop",constant("ball1"),constant("roomb"),constant("right"))),69) occurs(action(("move",constant("roomb"),constant("rooma"))),70) Solving Time: 0.13s Memory: 114MB (+0MB) SAT SATISFIABLE Models : 1+ Calls : 90 Time : 53.459s (Solving: 51.44s 1st Model: 0.12s Unsat: 0.10s) CPU Time : 53.480s Choices : 2772914 Conflicts : 841048 (Analyzed: 841046) Restarts : 8653 (Average: 97.20 Last: 163) Model-Level : 512.0 Problems : 90 (Average Length: 88.17 Splits: 0) Lemmas : 841046 (Deleted: 737825) Binary : 23922 (Ratio: 2.84%) Ternary : 11912 (Ratio: 1.42%) Conflict : 841046 (Average Length: 37.9 Ratio: 100.00%) Loop : 0 (Average Length: 0.0 Ratio: 0.00%) Other : 0 (Average Length: 0.0 Ratio: 0.00%) Backjumps : 841046 (Average: 2.35 Max: 1030 Sum: 1980244) Executed : 840981 (Average: 2.35 Max: 1030 Sum: 1979750 Ratio: 99.98%) Bounded : 65 (Average: 7.60 Max: 30 Sum: 494 Ratio: 0.02%) Rules : 131957 Atoms : 131957 Bodies : 1 (Original: 0) Tight : Yes Variables : 34419 (Eliminated: 0 Frozen: 8959) Constraints : 121280 (Binary: 84.4% Ternary: 15.1% Other: 0.5%) Memory Peak : 115MB Max. Length : 110 steps Sol. Length : 70 steps