Trace number 3280149

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) 1300.02 1300.01

General information on the benchmark

Nameindustrial/anbulagan/
hard-sat/partial-10-17-s.cnf
MD5SUMf72920912a1bb14f90e9fea5dee0ec1c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark77.9931
Satisfiable
(Un)Satisfiability was proved
Number of variables298900
Number of clauses1409628
Sum of the clauses size3261218
Maximum clause length10
Minimum clause length1
Number of clauses of size 122283
Number of clauses of size 21089480
Number of clauses of size 3242405
Number of clauses of size 46160
Number of clauses of size 524640
Number of clauses of size over 524660

Solver Data 

0.00/0.00	c Parsing...
0.00/0.55	c ==============================================================================
0.00/0.55	c |           |     ORIGINAL     |              LEARNT              |          |
0.00/0.55	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.00/0.55	c ==============================================================================
0.00/0.55	c |         0 | 1385857  3235805 |  415757       0        0     nan |  0.000 % |
3.99/4.08	c |         0 |  868292  2392233 |      --       0       --      -- |     --   | -256585/-254593
3.99/4.08	c ==============================================================================
3.99/4.08	c Result  :   #vars: 150440   #clauses: 868292   #literals: 2392233
3.99/4.08	c CPU time:   3.9674 s
3.99/4.08	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-3280149-1303746817/watcher-3280149-1303746817 -o /tmp/evaluation-result-3280149-1303746817/solver-3280149-1303746817 -C 2400 -W 1300 -M 7680 ./esg_static.sh HOME/instance-3280149-1303746817.cnf 

running on 2 cores: 4,6

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: 0.16 0.03 0.01 4/182 5913
/proc/meminfo: memFree=24842844/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=0 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 328 0 0 0 0 0 0 0 21 0 1 0 564912370 8908800 250 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 250 209 178 0 68 0

[startup+0.089095 s]
/proc/loadavg: 0.16 0.03 0.01 4/182 5913
/proc/meminfo: memFree=24842844/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=0 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 328 0 0 0 0 0 0 0 21 0 1 0 564912370 8908800 250 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 250 209 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101058 s]
/proc/loadavg: 0.16 0.03 0.01 4/182 5913
/proc/meminfo: memFree=24842844/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=0 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 328 0 0 0 0 0 0 0 21 0 1 0 564912370 8908800 250 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 250 209 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.301046 s]
/proc/loadavg: 0.16 0.03 0.01 4/182 5913
/proc/meminfo: memFree=24842844/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=0 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 328 0 0 0 0 0 0 0 21 0 1 0 564912370 8908800 250 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 250 209 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.700945 s]
/proc/loadavg: 0.16 0.03 0.01 4/182 5913
/proc/meminfo: memFree=24842844/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=0 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 328 0 0 0 0 0 0 0 21 0 1 0 564912370 8908800 250 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 250 209 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50082 s]
/proc/loadavg: 0.16 0.03 0.01 4/188 5925
/proc/meminfo: memFree=24606572/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=0 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 328 0 0 0 0 0 0 0 21 0 1 0 564912370 8908800 250 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 250 209 178 0 68 0
[pid=5914] ppid=5913 vsize=181796 CPUtime=1.49 cores=4,6
/proc/5914/stat : 5914 (SatELite_releas) R 5913 5913 5867 0 -1 4202496 40565 0 0 0 141 8 0 0 25 0 1 0 564912370 186159104 37137 33554432000 134512640 135144242 4286568288 18446744073709551615 134585745 0 0 4096 3 0 0 0 17 4 0 0 0
/proc/5914/statm: 45449 37137 77 155 0 45292 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 190496

[startup+3.10054 s]
/proc/loadavg: 0.16 0.03 0.01 5/190 5927
/proc/meminfo: memFree=24569000/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=0 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 328 0 0 0 0 0 0 0 21 0 1 0 564912370 8908800 250 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 250 209 178 0 68 0
[pid=5914] ppid=5913 vsize=183920 CPUtime=3.08 cores=4,6
/proc/5914/stat : 5914 (SatELite_releas) R 5913 5913 5867 0 -1 4202496 45595 0 0 0 299 9 0 0 25 0 1 0 564912370 188334080 37826 33554432000 134512640 135144242 4286568288 18446744073709551615 134724088 0 0 4096 3 0 0 0 17 4 0 0 0
/proc/5914/statm: 45980 37826 77 155 0 45823 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 192620

[startup+6.30091 s]
/proc/loadavg: 0.47 0.10 0.03 5/194 5936
/proc/meminfo: memFree=24566888/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=69976 CPUtime=1.74 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 15325 0 0 0 172 2 0 0 25 0 1 0 564912825 71655424 15161 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 17494 15161 131 6 0 15964 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 78676

[startup+12.7008 s]
/proc/loadavg: 0.75 0.16 0.05 5/194 5937
/proc/meminfo: memFree=24611644/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=75144 CPUtime=8.14 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 16614 0 0 0 812 2 0 0 25 0 1 0 564912825 76947456 16448 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208164 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 18786 16448 131 6 0 17256 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 83844

[startup+25.5004 s]
/proc/loadavg: 1.47 0.35 0.12 5/194 5938
/proc/meminfo: memFree=24598748/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=75816 CPUtime=20.93 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 16794 0 0 0 2091 2 0 0 25 0 1 0 564912825 77635584 16628 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208384 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 18954 16628 131 6 0 17424 0
Current children cumulated CPU time (s) 25.46
Current children cumulated vsize (KiB) 84516

[startup+51.1006 s]
/proc/loadavg: 2.33 0.64 0.22 5/194 5968
/proc/meminfo: memFree=24528768/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=86160 CPUtime=46.53 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 19368 0 0 0 4650 3 0 0 25 0 1 0 564912825 88227840 19202 33554432000 4194304 4218580 140736394457728 18446744073709551615 4207032 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 21540 19202 131 6 0 20010 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 94860

[startup+102.307 s]
/proc/loadavg: 3.27 1.16 0.41 5/194 5970
/proc/meminfo: memFree=24498304/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=90944 CPUtime=97.75 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 20593 0 0 0 9771 4 0 0 25 0 1 0 564912825 93126656 20427 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208384 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 22736 20427 131 6 0 21206 0
Current children cumulated CPU time (s) 102.28
Current children cumulated vsize (KiB) 99644

[startup+162.301 s]
/proc/loadavg: 3.81 1.69 0.64 5/194 5971
/proc/meminfo: memFree=24449380/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=109324 CPUtime=157.74 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 25166 0 0 0 15769 5 0 0 25 0 1 0 564912825 111947776 25000 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 27331 25000 131 6 0 25801 0
Current children cumulated CPU time (s) 162.27
Current children cumulated vsize (KiB) 118024

[startup+222.301 s]
/proc/loadavg: 3.93 2.11 0.85 5/194 5973
/proc/meminfo: memFree=24414144/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=118544 CPUtime=217.74 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 27497 0 0 0 21768 6 0 0 25 0 1 0 564912825 121389056 27331 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208205 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 29636 27331 131 6 0 28106 0
Current children cumulated CPU time (s) 222.27
Current children cumulated vsize (KiB) 127244

[startup+282.301 s]
/proc/loadavg: 3.97 2.45 1.04 5/194 5974
/proc/meminfo: memFree=24413736/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=118576 CPUtime=277.75 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 27505 0 0 0 27769 6 0 0 25 0 1 0 564912825 121421824 27339 33554432000 4194304 4218580 140736394457728 18446744073709551615 4210694 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 29644 27339 131 6 0 28114 0
Current children cumulated CPU time (s) 282.28
Current children cumulated vsize (KiB) 127276

[startup+342.3 s]
/proc/loadavg: 3.99 2.73 1.22 5/194 5976
/proc/meminfo: memFree=24402064/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=120612 CPUtime=337.75 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 28003 0 0 0 33769 6 0 0 25 0 1 0 564912825 123506688 27837 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 30153 27837 131 6 0 28623 0
Current children cumulated CPU time (s) 342.28
Current children cumulated vsize (KiB) 129312

[startup+402.3 s]
/proc/loadavg: 4.05 2.97 1.40 5/194 5978
/proc/meminfo: memFree=24380852/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6

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

/proc/5936/statm: 39255 36928 131 6 0 37725 0
Current children cumulated CPU time (s) 582.28
Current children cumulated vsize (KiB) 165720

[startup+642.301 s]
/proc/loadavg: 4.01 3.54 1.99 5/194 5993
/proc/meminfo: memFree=24318288/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=157020 CPUtime=637.76 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 37114 0 0 0 63768 8 0 0 25 0 1 0 564912825 160788480 36932 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 39255 36932 131 6 0 37725 0
Current children cumulated CPU time (s) 642.29
Current children cumulated vsize (KiB) 165720

[startup+702.301 s]
/proc/loadavg: 4.06 3.64 2.12 5/194 5995
/proc/meminfo: memFree=24309088/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=157052 CPUtime=697.76 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 37125 0 0 0 69768 8 0 0 25 0 1 0 564912825 160821248 36932 33554432000 4194304 4218580 140736394457728 18446744073709551615 4213187 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 39263 36932 131 6 0 37733 0
Current children cumulated CPU time (s) 702.29
Current children cumulated vsize (KiB) 165752

[startup+762.307 s]
/proc/loadavg: 4.02 3.70 2.23 5/194 5996
/proc/meminfo: memFree=24307560/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=157052 CPUtime=757.76 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 37144 0 0 0 75768 8 0 0 25 0 1 0 564912825 160821248 36939 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208384 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 39263 36939 131 6 0 37733 0
Current children cumulated CPU time (s) 762.29
Current children cumulated vsize (KiB) 165752

[startup+822.301 s]
/proc/loadavg: 4.01 3.75 2.34 5/194 5998
/proc/meminfo: memFree=24293888/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=157084 CPUtime=817.76 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 37156 0 0 0 81768 8 0 0 25 0 1 0 564912825 160854016 36945 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 39271 36945 131 6 0 37741 0
Current children cumulated CPU time (s) 822.29
Current children cumulated vsize (KiB) 165784

[startup+882.301 s]
/proc/loadavg: 4.00 3.80 2.44 5/194 5999
/proc/meminfo: memFree=24271280/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=157116 CPUtime=877.76 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 37171 0 0 0 87768 8 0 0 25 0 1 0 564912825 160886784 36948 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208288 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 39279 36948 131 6 0 37749 0
Current children cumulated CPU time (s) 882.29
Current children cumulated vsize (KiB) 165816

[startup+942.301 s]
/proc/loadavg: 4.00 3.83 2.53 5/194 6001
/proc/meminfo: memFree=24252896/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=159080 CPUtime=937.76 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 37673 0 0 0 93768 8 0 0 25 0 1 0 564912825 162897920 37442 33554432000 4194304 4218580 140736394457728 18446744073709551615 4209727 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 39770 37442 131 6 0 38240 0
Current children cumulated CPU time (s) 942.29
Current children cumulated vsize (KiB) 167780

[startup+1002.3 s]
/proc/loadavg: 4.00 3.86 2.62 5/194 6003
/proc/meminfo: memFree=24228084/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=182788 CPUtime=997.77 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 43618 0 0 0 99767 10 0 0 25 0 1 0 564912825 187174912 43378 33554432000 4194304 4218580 140736394457728 18446744073709551615 4213540 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 45697 43378 131 6 0 44167 0
Current children cumulated CPU time (s) 1002.3
Current children cumulated vsize (KiB) 191488

[startup+1062.3 s]
/proc/loadavg: 4.00 3.88 2.71 5/194 6004
/proc/meminfo: memFree=24225208/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=182756 CPUtime=1057.77 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 43627 0 0 0 105767 10 0 0 25 0 1 0 564912825 187142144 43374 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208446 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 45689 43374 131 6 0 44159 0
Current children cumulated CPU time (s) 1062.3
Current children cumulated vsize (KiB) 191456

[startup+1122.3 s]
/proc/loadavg: 4.00 3.90 2.78 5/194 6006
/proc/meminfo: memFree=24221332/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=186540 CPUtime=1117.78 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 44577 0 0 0 111767 11 0 0 25 0 1 0 564912825 191016960 44314 33554432000 4194304 4218580 140736394457728 18446744073709551615 4210238 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 46635 44314 131 6 0 45105 0
Current children cumulated CPU time (s) 1122.31
Current children cumulated vsize (KiB) 195240

[startup+1182.3 s]
/proc/loadavg: 4.00 3.92 2.86 5/194 6007
/proc/meminfo: memFree=24210256/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=197268 CPUtime=1177.78 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 47281 0 0 0 117766 12 0 0 25 0 1 0 564912825 202002432 47006 33554432000 4194304 4218580 140736394457728 18446744073709551615 4210496 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 49317 47006 131 6 0 47787 0
Current children cumulated CPU time (s) 1182.31
Current children cumulated vsize (KiB) 205968

[startup+1242.3 s]
/proc/loadavg: 4.06 3.94 2.93 5/194 6009
/proc/meminfo: memFree=24210356/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=197268 CPUtime=1237.78 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 47300 0 0 0 123766 12 0 0 25 0 1 0 564912825 202002432 47003 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208516 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 49317 47003 131 6 0 47787 0
Current children cumulated CPU time (s) 1242.31
Current children cumulated vsize (KiB) 205968



Maximum wall clock time exceeded: sending SIGTERM then SIGKILL

[startup+1300 s]
/proc/loadavg: 4.02 3.95 3.00 5/194 6011
/proc/meminfo: memFree=24204376/32951124 swapFree=67111348/67111528
[pid=5913] ppid=5911 vsize=8700 CPUtime=4.53 cores=4,6
/proc/5913/stat : 5913 (esg_static.sh) S 5911 5913 5867 0 -1 4202496 355 57926 0 0 0 0 439 14 18 0 1 0 564912370 8908800 253 33554432000 4194304 4922060 140735100352928 18446744073709551615 252457884805 0 65536 4100 65538 18446744071562232103 0 0 17 4 0 0 0
/proc/5913/statm: 2175 253 209 178 0 68 0
[pid=5936] ppid=5913 vsize=197300 CPUtime=1295.49 cores=4,6
/proc/5936/stat : 5936 (cdcl) R 5913 5913 5867 0 -1 4202496 47317 0 0 0 129537 12 0 0 25 0 1 0 564912825 202035200 47012 33554432000 4194304 4218580 140736394457728 18446744073709551615 4208384 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/5936/statm: 49325 47012 131 6 0 47795 0
Current children cumulated CPU time (s) 1300.02
Current children cumulated vsize (KiB) 206000

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 5913 and gives
#  childrusage.ru_utime.tv_sec=4
#  childrusage.ru_utime.tv_usec=399331
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=144977
# CPU time returned by wait4() is 4.54431
# while last known CPU time is 1300.02
#
# 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): 1300.02
CPU user time (s): 1299.76
CPU system time (s): 0.26
CPU usage (%): 100
Max. virtual memory (cumulated for all children) (KiB): 209848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.39933
system time used= 0.144977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 58281
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= 11

runsolver used 2.24466 second user time and 4.86226 second system time

The end

Launcher Data 

Begin job on node111 at 2011-04-25 17:53:39
IDJOB=3280149
IDBENCH=20349
IDSOLVER=1609
FILE ID=node111/3280149-1303746817
RUNJOBID= node111-1303746815-5887
PBS_JOBID= 13154051
Free space on /tmp= 70680 MiB

SOLVER NAME= rcl 2011-04-01
BENCH NAME= SAT07/industrial/anbulagan/hard-sat/partial-10-17-s.cnf
COMMAND LINE= ./esg_static.sh BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3280149-1303746817/watcher-3280149-1303746817 -o /tmp/evaluation-result-3280149-1303746817/solver-3280149-1303746817 -C 2400 -W 1300 -M 7680  ./esg_static.sh HOME/instance-3280149-1303746817.cnf

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

MD5SUM BENCH= f72920912a1bb14f90e9fea5dee0ec1c
RANDOM SEED=1048513436

node111.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		: 2666.849
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	: 5333.69
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		: 2666.849
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	: 5428.12
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		: 2666.849
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	: 5332.75
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		: 2666.849
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	: 5332.86
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		: 2666.849
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	: 5332.75
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		: 2666.849
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	: 5332.83
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		: 2666.849
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	: 5332.67
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		: 2666.849
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      24843256 kB
Buffers:       1206972 kB
Cached:        6309064 kB
SwapCached:        132 kB
Active:        2425240 kB
Inactive:      5211880 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24843256 kB
SwapTotal:    67111528 kB
SwapFree:     67111348 kB
Dirty:           55752 kB
Writeback:           0 kB
AnonPages:      121220 kB
Mapped:          15196 kB
Slab:           406916 kB
PageTables:       5052 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   271312 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= 70556 MiB
End job on node111 at 2011-04-25 18:15:21