Trace number 1724344

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
precosat 236UNSAT 3.76143 3.76276

General information on the benchmark

Namemanol-pipe-c9.cnf
MD5SUM7f47eb2c5986b40772da3e38cf0759b1
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.54061
Satisfiable
(Un)Satisfiability was proved
Number of variables15214
Number of clauses45082
Sum of the clauses size105190
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 230054
Number of clauses of size 315027
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 PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-1724344-1240694553.cnf
0.00/0.00	c found header 'p cnf 15214 45082'
0.00/0.05	c finished parsing
0.00/0.05	c
0.00/0.05	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.05	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.05	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.05	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.05	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.05	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.05	c
0.00/0.05	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.05	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.05	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.05	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.05	c
0.00/0.05	c starting search after 0.1 seconds
0.00/0.05	c no decision limit
0.00/0.06	c
0.00/0.06	c       original/binary      fixed     eliminated      learned       agility
0.00/0.06	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.06	c
0.00/0.06	c *    0.1    45081   15213      1     0      0       0      0    0.0   0    4
0.49/0.52	c -    0.5    17356    1803   3911  2567   6933       0   1000    0.0   0    4
0.49/0.59	c s    0.6    10519    1531   3911  2567   7205       0      0    0.0   0    2
0.49/0.59	c l    0.6    10519    1531   3911  2567   7205       0   7486    0.0   0    2
0.59/0.60	c R    0.6    10531    1531   3911  2567   7205     100     96   51.3  12    2
0.59/0.61	c R    0.6    10535    1531   3911  2567   7205     200    195   47.3  11    2
0.59/0.65	c N    0.7    10552    1531   3911  2567   7205     805    786   47.7  26    3
0.59/0.66	c B    0.7    10572    1531   3911  2567   7205    1000    981   48.7  24    3
0.69/0.73	c B    0.7    10593    1531   3911  2567   7205    2001   1975   52.0  16    3
0.69/0.76	c R    0.8    10605    1530   3911  2568   7205    2410   2382   51.7  22    3
0.79/0.87	c s    0.9    10605    1530   3911  2568   7205    4093   4062   46.3  30    3
0.99/1.03	c N    1.0    10612    1530   3911  2568   7205    6418   6381   45.0  30    3
0.99/1.09	c +    1.1    10612    1530   3911  2568   7205    7486   8234   43.6  22    3
1.09/1.12	c B    1.1    10612    1530   3911  2568   7205    8004   7967   42.7  23    4
1.19/1.21	c +    1.2    10614    1530   3911  2568   7205    9356   9057   42.3  26    4
1.29/1.39	c s    1.4    10628    1518   3914  2577   7205   11291   9079   40.6  25    3
1.29/1.39	c -    1.4    10628    1518   3914  2577   7205   11291   8967   40.6  25    3
1.39/1.42	c +    1.4    10629    1517   3914  2578   7205   11579   9863   41.6  30    4
1.59/1.66	c +    1.7    10637    1513   3914  2582   7205   14470  10849   41.4  24    4
1.69/1.77	c
1.69/1.77	c       original/binary      fixed     eliminated      learned       agility
1.69/1.77	c   seconds        variables     equivalent    conflicts       height       MB
1.69/1.77	c
1.69/1.77	c N    1.8    10640    1513   3914  2582   7205   16041  10884   40.4  26    4
1.89/1.92	c +    1.9    10642    1512   3914  2583   7205   18085  11933   38.8  20    4
2.09/2.12	c s    2.1    10630    1512   3914  2583   7205   20185  11951   38.6  32    4
2.29/2.31	c +    2.3    10631    1512   3914  2583   7205   22606  13126   38.5  23    4
2.39/2.48	c B    2.5    11072    1501   3917  2591   7205   24010  13139   37.5  20    4
2.79/2.86	c +    2.9    14667    1347   3979  2683   7205   28257  14438   36.2  27    5
2.99/3.07	c s    3.1    10070    1306   3979  2724   7205   30776   8970   37.0  29    3
2.99/3.07	c -    3.1    10070    1306   3979  2724   7205   30776  12273   37.0  29    3
2.99/3.07	c +    3.1    10070    1306   3979  2724   7205   30776  13500   37.0  29    3
3.69/3.76	c 0    3.8    19299    1007   4117  2885   7205   38272  13499   34.9  21    5
3.69/3.76	c
3.69/3.76	s UNSATISFIABLE
3.69/3.76	c
3.69/3.76	c 38272 conflicts, 84306 decisions, 2 random
3.69/3.76	c 13 iterations, 95 restarts, 59 skipped
3.69/3.76	c 8 enlarged, 857 shrunken, 374 rescored, 20 rebiased
3.69/3.76	c 5 simplifications, 0 reductions
3.69/3.76	c
3.69/3.76	c vars: 4117 fixed, 2885 equiv, 7205 elim, 4027 merged
3.69/3.76	c elim: 122189 resolutions, 1 phases, 1 rounds
3.69/3.76	c sbst: 93% substituted, 6.2% nots, 85.1% ands, 7.9% xors, 0.8% ites
3.69/3.76	c arty: 2.08 and 2.00 xor average arity
3.69/3.76	c prbe: 26749 probed, 4 phases, 7 rounds
3.69/3.76	c prbe: 96 failed, 2163 lifted, 1991 merged
3.69/3.76	c sccs: 92 non trivial, 0 fixed, 235 merged
3.69/3.76	c hash: 45 units, 1801 merged
3.69/3.76	c mins: 741616 learned, 26% deleted, 80 strong, 13 depth
3.69/3.76	c subs: 852 forward, 1180 backward, 16109 doms
3.69/3.76	c strs: 360 forward, 36 backward
3.69/3.76	c doms: 19881 dominators, 14206 high, 65 low
3.69/3.76	c prps: 4113130 propagations, 1.09 megaprops
3.69/3.76	c
3.69/3.76	c 3.8 seconds, 5 MB max, 5 MB recycled

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1724344-1240694553/watcher-1724344-1240694553 -o /tmp/evaluation-result-1724344-1240694553/solver-1724344-1240694553 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1724344-1240694553.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5806
/proc/meminfo: memFree=1736384/2055920 swapFree=4192812/4192956
[pid=5806] ppid=5804 vsize=2088 CPUtime=0
/proc/5806/stat : 5806 (precosat) R 5804 5806 5527 0 -1 4194304 416 0 0 0 0 0 0 0 21 0 1 0 97483343 2138112 401 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/5806/statm: 522 402 63 155 0 365 0

[startup+0.0930079 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5806
/proc/meminfo: memFree=1736384/2055920 swapFree=4192812/4192956
[pid=5806] ppid=5804 vsize=5928 CPUtime=0.08
/proc/5806/stat : 5806 (precosat) R 5804 5806 5527 0 -1 4194304 1511 0 0 0 8 0 0 0 21 0 1 0 97483343 6070272 1397 1992294400 134512640 135151029 4294956224 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/5806/statm: 1482 1397 79 155 0 1325 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5928

[startup+0.101009 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5806
/proc/meminfo: memFree=1736384/2055920 swapFree=4192812/4192956
[pid=5806] ppid=5804 vsize=6060 CPUtime=0.09
/proc/5806/stat : 5806 (precosat) R 5804 5806 5527 0 -1 4194304 1526 0 0 0 9 0 0 0 21 0 1 0 97483343 6205440 1412 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/5806/statm: 1515 1412 79 155 0 1358 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6060

[startup+0.301031 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5806
/proc/meminfo: memFree=1736384/2055920 swapFree=4192812/4192956
[pid=5806] ppid=5804 vsize=6984 CPUtime=0.29
/proc/5806/stat : 5806 (precosat) R 5804 5806 5527 0 -1 4194304 1751 0 0 0 29 0 0 0 23 0 1 0 97483343 7151616 1637 1992294400 134512640 135151029 4294956224 18446744073709551615 134554803 0 0 4096 17442 0 0 0 17 1 0 0
/proc/5806/statm: 1746 1637 79 155 0 1589 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6984

[startup+0.701079 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5806
/proc/meminfo: memFree=1736384/2055920 swapFree=4192812/4192956
[pid=5806] ppid=5804 vsize=7940 CPUtime=0.69
/proc/5806/stat : 5806 (precosat) R 5804 5806 5527 0 -1 4194304 2179 0 0 0 69 0 0 0 25 0 1 0 97483343 8130560 1848 1992294400 134512640 135151029 4294956224 18446744073709551615 134554890 0 0 4096 17442 0 0 0 17 1 0 0
/proc/5806/statm: 1985 1848 79 155 0 1828 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7940

[startup+1.50117 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 5807
/proc/meminfo: memFree=1729272/2055920 swapFree=4192812/4192956
[pid=5806] ppid=5804 vsize=7940 CPUtime=1.49
/proc/5806/stat : 5806 (precosat) R 5804 5806 5527 0 -1 4194304 2179 0 0 0 149 0 0 0 25 0 1 0 97483343 8130560 1848 1992294400 134512640 135151029 4294956224 18446744073709551615 134552130 0 0 4096 17442 0 0 0 17 1 0 0
/proc/5806/statm: 1985 1848 79 155 0 1828 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7940

[startup+3.10136 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 5807
/proc/meminfo: memFree=1729080/2055920 swapFree=4192812/4192956
[pid=5806] ppid=5804 vsize=7940 CPUtime=3.09
/proc/5806/stat : 5806 (precosat) R 5804 5806 5527 0 -1 4194304 2179 0 0 0 309 0 0 0 25 0 1 0 97483343 8130560 1848 1992294400 134512640 135151029 4294956224 18446744073709551615 134554915 0 0 4096 17442 0 0 0 17 1 0 0
/proc/5806/statm: 1985 1848 79 155 0 1828 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7940

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

[startup+3.50141 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 5807
/proc/meminfo: memFree=1729080/2055920 swapFree=4192812/4192956
[pid=5806] ppid=5804 vsize=7940 CPUtime=3.49
/proc/5806/stat : 5806 (precosat) R 5804 5806 5527 0 -1 4194304 2179 0 0 0 349 0 0 0 25 0 1 0 97483343 8130560 1848 1992294400 134512640 135151029 4294956224 18446744073709551615 134554809 0 0 4096 17442 0 0 0 17 1 0 0
/proc/5806/statm: 1985 1848 79 155 0 1828 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 7940

[startup+3.70143 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 5807
/proc/meminfo: memFree=1729080/2055920 swapFree=4192812/4192956
[pid=5806] ppid=5804 vsize=7940 CPUtime=3.69
/proc/5806/stat : 5806 (precosat) R 5804 5806 5527 0 -1 4194304 2179 0 0 0 369 0 0 0 25 0 1 0 97483343 8130560 1848 1992294400 134512640 135151029 4294956224 18446744073709551615 134542980 0 0 4096 17442 0 0 0 17 1 0 0
/proc/5806/statm: 1985 1848 79 155 0 1828 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 7940

Child status: 20
Real time (s): 3.76276
CPU time (s): 3.76143
CPU user time (s): 3.75243
CPU system time (s): 0.008998
CPU usage (%): 99.9646
Max. virtual memory (cumulated for all children) (KiB): 7940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.75243
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2180
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= 2
involuntary context switches= 9

runsolver used 0.006998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node53 at 2009-04-25 23:22:33
IDJOB=1724344
IDBENCH=71771
IDSOLVER=507
FILE ID=node53/1724344-1240694553
PBS_JOBID= 9186712
Free space on /tmp= 66476 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT_RACE06/manol-pipe-c9.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1724344-1240694553/watcher-1724344-1240694553 -o /tmp/evaluation-result-1724344-1240694553/solver-1724344-1240694553 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1724344-1240694553.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 7f47eb2c5986b40772da3e38cf0759b1
RANDOM SEED=1527383513

node53.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.245
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.245
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1736800 kB
Buffers:         30180 kB
Cached:         217400 kB
SwapCached:        144 kB
Active:         126324 kB
Inactive:       135340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1736800 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1480 kB
Writeback:           0 kB
Mapped:          23712 kB
Slab:            43492 kB
Committed_AS:   276920 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66476 MiB
End job on node53 at 2009-04-25 23:22:37