Trace number 1772931

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 30.1804 30.1902

General information on the benchmark

Nameindustrial/palacios/uts/
uts-l05-ipc5-h26-unsat.cnf
MD5SUM4b97e69214a2eddbe060a9ecc3dfbbd8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.1974
Satisfiable
(Un)Satisfiability was proved
Number of variables85694
Number of clauses414657
Sum of the clauses size1073659
Maximum clause length403
Minimum clause length1
Number of clauses of size 1190
Number of clauses of size 2330211
Number of clauses of size 380574
Number of clauses of size 4910
Number of clauses of size 5103
Number of clauses of size over 52669

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-1772931-1241181767.cnf
0.00/0.00	c found header 'p cnf 87475 414657'
0.79/0.82	c finished parsing
0.79/0.82	c
0.79/0.82	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.79/0.82	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.79/0.82	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.79/0.82	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.79/0.82	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.79/0.82	c --random=1 --spread=2000 --seed=0 --skip=25
0.79/0.82	c
0.79/0.82	c sizeof     vars[0] = 16   alignment = 0       1 MB
0.79/0.82	c sizeof     orgs[0] =  8   alignment = 0       1 MB
0.79/0.82	c sizeof     occs[0] =  8   alignment = 0       1 MB
0.79/0.82	c sizeof iirfs[0..1] =  8   alignment = 0       1 MB
0.79/0.82	c
0.79/0.82	c starting search after 0.8 seconds
0.79/0.82	c no decision limit
0.79/0.84	c
0.79/0.84	c       original/binary      fixed     eliminated      learned       agility
0.79/0.84	c   seconds        variables     equivalent    conflicts       height       MB
0.79/0.84	c
0.79/0.84	c *    0.8   414447   86737     28   710      0       0      0    0.0   0   33
13.28/13.39	c s   13.4   260950    7954     83   731  78707       0      0    0.0   0   32
13.28/13.39	c l   13.4   260950    7954     83   731  78707       0  91144    0.0   0   32
13.48/13.50	c R   13.5   264404    7954     83   731  78707     100     96   42.6   2   33
13.48/13.57	c R   13.6   266113    7954     83   731  78707     204    195   39.4   5   33
13.68/13.76	c R   13.8   269043    7952     83   733  78707     806    788   35.6   4   34
13.78/13.88	c B   13.9   270405    7952     83   733  78707    1002    983   34.8   2   34
14.68/14.70	c B   14.7   329874    7952     83   733  78707    2002   1979   36.6   0   37
14.68/14.78	c R   14.8   330181    7952     83   733  78707    2419   2394   37.3   5   37
20.19/20.22	c B   20.2   520878    7540    341   887  78707    8003   7947   46.1   7   50
23.39/23.49	c s   23.5   481789    6951    349   989  79186    9248   8054   44.9   4   46
23.39/23.49	c -   23.5   481789    6951    349   989  79186    9248  82030   44.9   4   46
30.08/30.18	c 0   30.2   504094    6567    697  1025  79186   23370  22127   33.5   6   50
30.08/30.18	c
30.08/30.18	s UNSATISFIABLE
30.08/30.18	c
30.08/30.18	c 23370 conflicts, 53065 decisions, 31 random
30.08/30.18	c 18 iterations, 125 restarts, 0 skipped
30.08/30.18	c 0 enlarged, 19309 shrunken, 228 rescored, 13 rebiased
30.08/30.18	c 2 simplifications, 0 reductions
30.08/30.18	c
30.08/30.18	c vars: 697 fixed, 1025 equiv, 79186 elim, 1186 merged
30.08/30.18	c elim: 2905390 resolutions, 2 phases, 1 rounds
30.08/30.18	c sbst: 72% substituted, 0.0% nots, 100.0% ands, 0.0% xors, 0.0% ites
30.08/30.18	c arty: 2.08 and 2.00 xor average arity
30.08/30.18	c prbe: 15430 probed, 14 phases, 1 rounds
30.08/30.18	c prbe: 90 failed, 0 lifted, 23 merged
30.08/30.18	c sccs: 23 non trivial, 0 fixed, 53 merged
30.08/30.18	c hash: 6 units, 1110 merged
30.08/30.18	c mins: 485620 learned, 36% deleted, 5 strong, 64 depth
30.08/30.18	c subs: 5499 forward, 47963 backward, 12737 doms
30.08/30.18	c strs: 11212 forward, 725 backward
30.08/30.18	c doms: 20198 dominators, 17208 high, 38 low
30.08/30.18	c prps: 18707552 propagations, 0.62 megaprops
30.08/30.18	c
30.08/30.18	c 30.2 seconds, 56 MB max, 28 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-1772931-1241181767/watcher-1772931-1241181767 -o /tmp/evaluation-result-1772931-1241181767/solver-1772931-1241181767 -C 10000 -W 6000 -M 1800 HOME/precosat HOME/instance-1772931-1241181767.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.97 0.91 2/64 23637
/proc/meminfo: memFree=636160/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=4208 CPUtime=0
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 795 0 0 0 0 0 0 0 19 0 1 0 146210661 4308992 780 1992294400 134512640 135151029 4294956240 18446744073709551615 134534335 0 0 4096 0 0 0 0 17 0 0 0
/proc/23637/statm: 1052 780 59 155 0 895 0

[startup+0.0432889 s]
/proc/loadavg: 0.92 0.97 0.91 2/64 23637
/proc/meminfo: memFree=636160/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=9504 CPUtime=0.03
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 2247 0 0 0 3 0 0 0 19 0 1 0 146210661 9732096 2232 1992294400 134512640 135151029 4294956240 18446744073709551615 134703758 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 2376 2232 64 155 0 2219 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 9504

[startup+0.101295 s]
/proc/loadavg: 0.92 0.97 0.91 2/64 23637
/proc/meminfo: memFree=636160/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=12528 CPUtime=0.09
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 3108 0 0 0 8 1 0 0 20 0 1 0 146210661 12828672 2995 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 3132 2996 64 155 0 2975 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12528

[startup+0.301318 s]
/proc/loadavg: 0.92 0.97 0.91 2/64 23637
/proc/meminfo: memFree=636160/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=20532 CPUtime=0.29
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 5485 0 0 0 27 2 0 0 22 0 1 0 146210661 21024768 4986 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 5133 4986 64 155 0 4976 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 20532

[startup+0.701362 s]
/proc/loadavg: 0.92 0.97 0.91 2/64 23637
/proc/meminfo: memFree=636160/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=34464 CPUtime=0.69
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 9476 0 0 0 65 4 0 0 25 0 1 0 146210661 35291136 8464 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 8616 8465 64 155 0 8459 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 34464

[startup+1.50145 s]
/proc/loadavg: 0.93 0.97 0.91 2/65 23638
/proc/meminfo: memFree=594232/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=44100 CPUtime=1.49
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 13154 0 0 0 144 5 0 0 25 0 1 0 146210661 45158400 10774 1992294400 134512640 135151029 4294956240 18446744073709551615 134521885 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 11025 10774 79 155 0 10868 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 44100

[startup+3.10163 s]
/proc/loadavg: 0.93 0.97 0.91 2/65 23638
/proc/meminfo: memFree=588792/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=60280 CPUtime=3.09
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 20033 0 0 0 302 7 0 0 25 0 1 0 146210661 61726720 14830 1992294400 134512640 135151029 4294956240 18446744073709551615 134575458 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 15070 14830 79 155 0 14913 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 60280

[startup+6.30199 s]
/proc/loadavg: 0.93 0.97 0.91 2/65 23638
/proc/meminfo: memFree=569528/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=70056 CPUtime=6.29
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 22126 0 0 0 620 9 0 0 25 0 1 0 146210661 71737344 16923 1992294400 134512640 135151029 4294956240 18446744073709551615 134548459 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 17514 16923 79 155 0 17357 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 70056

[startup+12.7017 s]
/proc/loadavg: 0.94 0.97 0.91 2/65 23638
/proc/meminfo: memFree=568440/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=70056 CPUtime=12.69
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 22126 0 0 0 1260 9 0 0 25 0 1 0 146210661 71737344 16923 1992294400 134512640 135151029 4294956240 18446744073709551615 134526328 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 17514 16923 79 155 0 17357 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 70056

[startup+25.5011 s]
/proc/loadavg: 0.95 0.97 0.91 2/65 23638
/proc/meminfo: memFree=572664/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=65956 CPUtime=25.48
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 28306 0 0 0 2536 12 0 0 25 0 1 0 146210661 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 65956

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

[startup+28.7015 s]
/proc/loadavg: 0.95 0.97 0.91 2/65 23638
/proc/meminfo: memFree=572664/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=65956 CPUtime=28.68
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 28306 0 0 0 2856 12 0 0 25 0 1 0 146210661 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134520115 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 65956

[startup+29.5016 s]
/proc/loadavg: 0.95 0.97 0.91 2/65 23638
/proc/meminfo: memFree=572664/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=65956 CPUtime=29.48
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 28306 0 0 0 2936 12 0 0 25 0 1 0 146210661 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 65956

[startup+29.9016 s]
/proc/loadavg: 0.95 0.97 0.91 2/65 23638
/proc/meminfo: memFree=572664/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=65956 CPUtime=29.88
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 28306 0 0 0 2976 12 0 0 25 0 1 0 146210661 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (KiB) 65956

[startup+30.1016 s]
/proc/loadavg: 0.95 0.97 0.91 2/65 23638
/proc/meminfo: memFree=572664/2055920 swapFree=4177336/4192956
[pid=23637] ppid=23635 vsize=65956 CPUtime=30.08
/proc/23637/stat : 23637 (precosat) R 23635 23637 23600 0 -1 4194304 28306 0 0 0 2996 12 0 0 25 0 1 0 146210661 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134574619 0 0 4096 17442 0 0 0 17 0 0 0
/proc/23637/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 30.08
Current children cumulated vsize (KiB) 65956

Child status: 20
Real time (s): 30.1902
CPU time (s): 30.1804
CPU user time (s): 30.0464
CPU system time (s): 0.133979
CPU usage (%): 99.9676
Max. virtual memory (cumulated for all children) (KiB): 70056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.0464
system time used= 0.133979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 28307
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= 1
involuntary context switches= 75

runsolver used 0.029995 second user time and 0.086986 second system time

The end

Launcher Data 

Begin job on node5 at 2009-05-01 14:42:47
IDJOB=1772931
IDBENCH=20415
IDSOLVER=607
FILE ID=node5/1772931-1241181767
PBS_JOBID= 9224579
Free space on /tmp= 66512 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT07/industrial/palacios/uts/uts-l05-ipc5-h26-unsat.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1772931-1241181767/watcher-1772931-1241181767 -o /tmp/evaluation-result-1772931-1241181767/solver-1772931-1241181767 -C 10000 -W 6000 -M 1800  HOME/precosat HOME/instance-1772931-1241181767.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 4b97e69214a2eddbe060a9ecc3dfbbd8
RANDOM SEED=1658606772

node5.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		: 3000.212
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		: 3000.212
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        636576 kB
Buffers:         76268 kB
Cached:        1262220 kB
SwapCached:      10428 kB
Active:         444340 kB
Inactive:       905984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        636576 kB
SwapTotal:     4192956 kB
SwapFree:      4177336 kB
Dirty:            8116 kB
Writeback:           0 kB
Mapped:          13352 kB
Slab:            54956 kB
Committed_AS:   683080 kB
PageTables:       1388 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= 66512 MiB
End job on node5 at 2009-05-01 14:43:18