Trace number 3282127

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
rcl 2011-04-01? (TO) 1300.04 1300.01

General information on the benchmark

NameAPPLICATIONS/bitverif/
countbitssrl/countbitssrl064.cnf
MD5SUM4f9c883534eb89cad9b9cad9e6eccbd0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables75103
Number of clauses225116
Sum of the clauses size525268
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2150076
Number of clauses of size 375038
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c Parsing...
0.00/0.08	c ==============================================================================
0.00/0.08	c |           |     ORIGINAL     |              LEARNT              |          |
0.00/0.08	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.00/0.08	c ==============================================================================
0.00/0.08	c |         0 |  225114   525266 |   67534       0        0     nan |  0.000 % |
0.00/0.88	c |         0 |  139451   431015 |      --       0       --      -- |     --   | -85661/-94246
0.00/0.88	c ==============================================================================
0.00/0.88	c Result  :   #vars: 27388   #clauses: 139451   #literals: 431015
0.00/0.88	c CPU time:   0.857869 s
0.00/0.88	c ==============================================================================

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3282127-1303752703/watcher-3282127-1303752703 -o /tmp/evaluation-result-3282127-1303752703/solver-3282127-1303752703 -C 2400 -W 1300 -M 7680 ./esg_static.sh HOME/instance-3282127-1303752703.cnf 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.32 3.04 2/178 28909
/proc/meminfo: memFree=20950444/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 330 0 0 0 0 0 0 0 21 0 1 0 486867033 8908800 250 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 250 209 178 0 68 0

[startup+0.0104761 s]
/proc/loadavg: 2.00 2.32 3.04 2/178 28909
/proc/meminfo: memFree=20950444/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 330 0 0 0 0 0 0 0 21 0 1 0 486867033 8908800 250 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 250 209 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.100494 s]
/proc/loadavg: 2.00 2.32 3.04 2/178 28909
/proc/meminfo: memFree=20950444/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 330 0 0 0 0 0 0 0 21 0 1 0 486867033 8908800 250 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 250 209 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.300452 s]
/proc/loadavg: 2.00 2.32 3.04 2/178 28909
/proc/meminfo: memFree=20950444/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 330 0 0 0 0 0 0 0 21 0 1 0 486867033 8908800 250 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 250 209 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.700375 s]
/proc/loadavg: 2.00 2.32 3.04 2/178 28909
/proc/meminfo: memFree=20950444/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 330 0 0 0 0 0 0 0 21 0 1 0 486867033 8908800 250 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 250 209 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50121 s]
/proc/loadavg: 2.00 2.32 3.04 3/180 28912
/proc/meminfo: memFree=20933324/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=20096 CPUtime=0.53 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 3427 0 0 0 53 0 0 0 20 0 1 0 486867130 20578304 3338 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 5024 3338 131 6 0 3494 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 28796

[startup+3.10089 s]
/proc/loadavg: 2.00 2.32 3.04 3/180 28912
/proc/meminfo: memFree=20924792/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=21640 CPUtime=2.13 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 3816 0 0 0 213 0 0 0 25 0 1 0 486867130 22159360 3727 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208186 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 5410 3727 131 6 0 3880 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 30340

[startup+6.30025 s]
/proc/loadavg: 2.00 2.32 3.04 3/180 28912
/proc/meminfo: memFree=20917972/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=23620 CPUtime=5.33 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 4310 0 0 0 533 0 0 0 25 0 1 0 486867130 24186880 4221 33554432000 4194304 4218580 140735083665024 18446744073709551615 4210294 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 5905 4221 131 6 0 4375 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 32320

[startup+12.701 s]
/proc/loadavg: 2.00 2.31 3.03 3/180 28912
/proc/meminfo: memFree=20912136/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=25268 CPUtime=11.72 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 4721 0 0 0 1172 0 0 0 25 0 1 0 486867130 25874432 4632 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208480 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 6317 4632 131 6 0 4787 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 33968

[startup+25.5004 s]
/proc/loadavg: 2.00 2.30 3.01 3/180 28912
/proc/meminfo: memFree=20901676/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=29256 CPUtime=24.52 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 5709 0 0 0 2452 0 0 0 25 0 1 0 486867130 29958144 5620 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208475 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 7314 5620 131 6 0 5784 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 37956

[startup+51.1003 s]
/proc/loadavg: 2.00 2.27 2.99 3/180 28913
/proc/meminfo: memFree=20897308/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=33408 CPUtime=50.13 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 6772 0 0 0 5012 1 0 0 25 0 1 0 486867130 34209792 6678 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208186 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 8352 6678 131 6 0 6822 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 42108

[startup+102.307 s]
/proc/loadavg: 2.00 2.22 2.93 3/180 28914
/proc/meminfo: memFree=20887864/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=42484 CPUtime=101.34 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 9068 0 0 0 10132 2 0 0 25 0 1 0 486867130 43503616 8947 33554432000 4194304 4218580 140735083665024 18446744073709551615 4210037 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 10621 8947 131 6 0 9091 0
Current children cumulated CPU time (s) 102.29
Current children cumulated vsize (KiB) 51184

[startup+162.301 s]
/proc/loadavg: 2.00 2.18 2.87 3/180 28916
/proc/meminfo: memFree=20882504/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=47644 CPUtime=161.33 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 10368 0 0 0 16131 2 0 0 25 0 1 0 486867130 48787456 10227 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 11911 10227 131 6 0 10381 0
Current children cumulated CPU time (s) 162.28
Current children cumulated vsize (KiB) 56344

[startup+222.301 s]
/proc/loadavg: 2.00 2.14 2.81 3/180 28918
/proc/meminfo: memFree=20872292/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=57784 CPUtime=221.33 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 12978 0 0 0 22130 3 0 0 25 0 1 0 486867130 59170816 12755 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208480 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 14446 12755 131 6 0 12916 0
Current children cumulated CPU time (s) 222.28
Current children cumulated vsize (KiB) 66484

[startup+282.301 s]
/proc/loadavg: 2.00 2.12 2.76 3/180 28919
/proc/meminfo: memFree=20868556/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=58072 CPUtime=281.34 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 13090 0 0 0 28131 3 0 0 25 0 1 0 486867130 59465728 12819 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 14518 12819 131 6 0 12988 0
Current children cumulated CPU time (s) 282.29
Current children cumulated vsize (KiB) 66772

[startup+342.3 s]
/proc/loadavg: 2.00 2.09 2.71 3/180 28921
/proc/meminfo: memFree=20866416/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=58200 CPUtime=341.35 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 13234 0 0 0 34131 4 0 0 25 0 1 0 486867130 59596800 12878 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208414 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 14550 12878 131 6 0 13020 0
Current children cumulated CPU time (s) 342.3
Current children cumulated vsize (KiB) 66900

[startup+402.3 s]
/proc/loadavg: 2.00 2.07 2.66 3/180 28922
/proc/meminfo: memFree=20862668/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3

################
# More data... #
################

/proc/28912/statm: 17924 16226 131 6 0 16394 0
Current children cumulated CPU time (s) 582.3
Current children cumulated vsize (KiB) 80396

[startup+642.3 s]
/proc/loadavg: 1.34 1.83 2.43 2/173 28954
/proc/meminfo: memFree=21010144/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=71984 CPUtime=641.36 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 17290 0 0 0 64130 6 0 0 25 0 1 0 486867130 73711616 16294 33554432000 4194304 4218580 140735083665024 18446744073709551615 4210684 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 17996 16294 131 6 0 16466 0
Current children cumulated CPU time (s) 642.31
Current children cumulated vsize (KiB) 80684

[startup+702.3 s]
/proc/loadavg: 1.13 1.69 2.35 2/173 28955
/proc/meminfo: memFree=21007380/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=74736 CPUtime=701.36 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 18094 0 0 0 70130 6 0 0 25 0 1 0 486867130 76529664 17001 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208519 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 18684 17001 131 6 0 17154 0
Current children cumulated CPU time (s) 702.31
Current children cumulated vsize (KiB) 83436

[startup+762.307 s]
/proc/loadavg: 1.04 1.55 2.25 2/173 28957
/proc/meminfo: memFree=21007104/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=74896 CPUtime=761.36 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 18208 0 0 0 76130 6 0 0 25 0 1 0 486867130 76693504 17034 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 18724 17034 131 6 0 17194 0
Current children cumulated CPU time (s) 762.31
Current children cumulated vsize (KiB) 83596

[startup+822.301 s]
/proc/loadavg: 1.02 1.45 2.18 2/173 28958
/proc/meminfo: memFree=20999744/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=82120 CPUtime=821.36 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 20205 0 0 0 82129 7 0 0 25 0 1 0 486867130 84090880 18866 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 20530 18866 131 6 0 19000 0
Current children cumulated CPU time (s) 822.31
Current children cumulated vsize (KiB) 90820

[startup+882.301 s]
/proc/loadavg: 1.00 1.36 2.09 2/173 28960
/proc/meminfo: memFree=20999712/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=82344 CPUtime=881.37 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 20334 0 0 0 88129 8 0 0 25 0 1 0 486867130 84320256 18920 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 20586 18920 131 6 0 19056 0
Current children cumulated CPU time (s) 882.32
Current children cumulated vsize (KiB) 91044

[startup+942.301 s]
/proc/loadavg: 1.00 1.30 2.03 2/173 28962
/proc/meminfo: memFree=20995344/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=87316 CPUtime=941.37 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 21650 0 0 0 94129 8 0 0 25 0 1 0 486867130 89411584 20146 33554432000 4194304 4218580 140735083665024 18446744073709551615 254500385758 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 21829 20146 131 6 0 20299 0
Current children cumulated CPU time (s) 942.32
Current children cumulated vsize (KiB) 96016

[startup+1002.3 s]
/proc/loadavg: 1.00 1.24 1.96 2/173 28963
/proc/meminfo: memFree=20985396/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=96668 CPUtime=1001.37 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 24103 0 0 0 100128 9 0 0 25 0 1 0 486867130 98988032 22471 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 24167 22471 131 6 0 22637 0
Current children cumulated CPU time (s) 1002.32
Current children cumulated vsize (KiB) 105368

[startup+1062.3 s]
/proc/loadavg: 1.00 1.20 1.90 3/173 28965
/proc/meminfo: memFree=20985248/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=96732 CPUtime=1061.38 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 24242 0 0 0 106128 10 0 0 25 0 1 0 486867130 99053568 22484 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208710 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 24183 22484 131 6 0 22653 0
Current children cumulated CPU time (s) 1062.33
Current children cumulated vsize (KiB) 105432

[startup+1122.3 s]
/proc/loadavg: 1.00 1.16 1.84 2/173 28967
/proc/meminfo: memFree=20985328/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=96764 CPUtime=1121.38 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 24347 0 0 0 112128 10 0 0 25 0 1 0 486867130 99086336 22497 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 24191 22497 131 6 0 22661 0
Current children cumulated CPU time (s) 1122.33
Current children cumulated vsize (KiB) 105464

[startup+1182.3 s]
/proc/loadavg: 1.00 1.13 1.79 2/173 28968
/proc/meminfo: memFree=20973152/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=108632 CPUtime=1181.38 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 27599 0 0 0 118127 11 0 0 25 0 1 0 486867130 111239168 25466 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208516 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 27158 25466 131 6 0 25628 0
Current children cumulated CPU time (s) 1182.33
Current children cumulated vsize (KiB) 117332

[startup+1242.3 s]
/proc/loadavg: 1.00 1.10 1.73 2/173 28970
/proc/meminfo: memFree=20973372/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=108344 CPUtime=1241.38 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 27726 0 0 0 124127 11 0 0 25 0 1 0 486867130 110944256 25395 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208471 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 27086 25395 131 6 0 25556 0
Current children cumulated CPU time (s) 1242.33
Current children cumulated vsize (KiB) 117044



Maximum wall clock time exceeded: sending SIGTERM then SIGKILL

[startup+1300 s]
/proc/loadavg: 1.00 1.08 1.68 2/173 28971
/proc/meminfo: memFree=20973708/32950928 swapFree=67111528/67111528
[pid=28909] ppid=28907 vsize=8700 CPUtime=0.95 cores=1,3
/proc/28909/stat : 28909 (esg_static.sh) S 28907 28909 27831 0 -1 4202496 355 10640 0 0 0 0 93 2 18 0 1 0 486867033 8908800 253 33554432000 4194304 4922060 140737009522272 18446744073709551615 254500510853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28909/statm: 2175 253 209 178 0 68 0
[pid=28912] ppid=28909 vsize=108280 CPUtime=1299.09 cores=1,3
/proc/28912/stat : 28912 (cdcl) R 28909 28909 27831 0 -1 4202496 27870 0 0 0 129898 11 0 0 25 0 1 0 486867130 110878720 25381 33554432000 4194304 4218580 140735083665024 18446744073709551615 4208475 0 0 4096 24578 0 0 0 17 1 0 0 0
/proc/28912/statm: 27070 25381 131 6 0 25540 0
Current children cumulated CPU time (s) 1300.04
Current children cumulated vsize (KiB) 116980

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Solver just ended. Dumping a history of the last processes samples

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 28909 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=932858
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=30995
# CPU time returned by wait4() is 0.963853
# while last known CPU time is 1300.04
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 1300.01
CPU time (s): 1300.04
CPU user time (s): 1299.91
CPU system time (s): 0.13
CPU usage (%): 100.002
Max. virtual memory (cumulated for all children) (KiB): 117748

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.932858
system time used= 0.030995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10995
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 17

runsolver used 1.87671 second user time and 4.76527 second system time

The end

Launcher Data 

Begin job on node149 at 2011-04-25 19:31:43
IDJOB=3282127
IDBENCH=70781
IDSOLVER=1609
FILE ID=node149/3282127-1303752703
RUNJOBID= node149-1303751027-28571
PBS_JOBID= 13154013
Free space on /tmp= 72148 MiB

SOLVER NAME= rcl 2011-04-01
BENCH NAME= SAT09/APPLICATIONS/bitverif/countbitssrl/countbitssrl064.cnf
COMMAND LINE= ./esg_static.sh BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3282127-1303752703/watcher-3282127-1303752703 -o /tmp/evaluation-result-3282127-1303752703/solver-3282127-1303752703 -C 2400 -W 1300 -M 7680  ./esg_static.sh HOME/instance-3282127-1303752703.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 4f9c883534eb89cad9b9cad9e6eccbd0
RANDOM SEED=1362284015

node149.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.61
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.73
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      20950600 kB
Buffers:       2157276 kB
Cached:        9153668 kB
SwapCached:          0 kB
Active:        1223812 kB
Inactive:     10246152 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      20950600 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            4680 kB
Writeback:           0 kB
AnonPages:      158560 kB
Mapped:          15120 kB
Slab:           467296 kB
PageTables:       4880 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   303608 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72180 MiB
End job on node149 at 2011-04-25 19:53:26