Trace number 1717456

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 31.6442 31.6521

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 benchmark10.1445
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-1717456-1240628367.cnf
0.00/0.00	c found header 'p cnf 87475 414657'
0.79/0.86	c finished parsing
0.79/0.86	c
0.79/0.86	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.79/0.86	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.79/0.86	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.79/0.86	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.79/0.86	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.79/0.86	c --random=1 --spread=2000 --seed=0 --skip=25
0.79/0.86	c
0.79/0.86	c sizeof     vars[0] = 16   alignment = 0       1 MB
0.79/0.86	c sizeof     orgs[0] =  8   alignment = 0       1 MB
0.79/0.86	c sizeof     occs[0] =  8   alignment = 0       1 MB
0.79/0.86	c sizeof iirfs[0..1] =  8   alignment = 0       1 MB
0.79/0.86	c
0.79/0.86	c starting search after 0.9 seconds
0.79/0.86	c no decision limit
0.79/0.88	c
0.79/0.88	c       original/binary      fixed     eliminated      learned       agility
0.79/0.88	c   seconds        variables     equivalent    conflicts       height       MB
0.79/0.88	c
0.79/0.88	c *    0.9   414447   86737     28   710      0       0      0    0.0   0   33
14.08/14.18	c s   14.2   260950    7954     83   731  78707       0      0    0.0   0   32
14.08/14.18	c l   14.2   260950    7954     83   731  78707       0  91144    0.0   0   32
14.19/14.29	c R   14.3   264404    7954     83   731  78707     100     96   42.6   2   33
14.30/14.36	c R   14.4   266113    7954     83   731  78707     204    195   39.4   5   33
14.49/14.55	c R   14.6   269043    7952     83   733  78707     806    788   35.6   4   34
14.59/14.68	c B   14.7   270405    7952     83   733  78707    1002    983   34.8   2   34
15.49/15.52	c B   15.5   329874    7952     83   733  78707    2002   1979   36.6   0   37
15.59/15.61	c R   15.6   330181    7952     83   733  78707    2419   2394   37.3   5   37
21.18/21.23	c B   21.2   520878    7540    341   887  78707    8003   7947   46.1   7   50
24.58/24.66	c s   24.7   481789    6951    349   989  79186    9248   8054   44.9   4   46
24.58/24.66	c -   24.7   481789    6951    349   989  79186    9248  82030   44.9   4   46
31.58/31.64	c 0   31.6   504094    6567    697  1025  79186   23370  22127   33.5   6   50
31.58/31.64	c
31.58/31.64	s UNSATISFIABLE
31.58/31.64	c
31.58/31.64	c 23370 conflicts, 53065 decisions, 31 random
31.58/31.64	c 18 iterations, 125 restarts, 0 skipped
31.58/31.64	c 0 enlarged, 19309 shrunken, 228 rescored, 13 rebiased
31.58/31.64	c 2 simplifications, 0 reductions
31.58/31.64	c
31.58/31.64	c vars: 697 fixed, 1025 equiv, 79186 elim, 1186 merged
31.58/31.64	c elim: 2905390 resolutions, 2 phases, 1 rounds
31.58/31.64	c sbst: 72% substituted, 0.0% nots, 100.0% ands, 0.0% xors, 0.0% ites
31.58/31.64	c arty: 2.08 and 2.00 xor average arity
31.58/31.64	c prbe: 15430 probed, 14 phases, 1 rounds
31.58/31.64	c prbe: 90 failed, 0 lifted, 23 merged
31.58/31.64	c sccs: 23 non trivial, 0 fixed, 53 merged
31.58/31.64	c hash: 6 units, 1110 merged
31.58/31.64	c mins: 485620 learned, 36% deleted, 5 strong, 64 depth
31.58/31.64	c subs: 5499 forward, 47963 backward, 12737 doms
31.58/31.64	c strs: 11212 forward, 725 backward
31.58/31.64	c doms: 20198 dominators, 17208 high, 38 low
31.58/31.64	c prps: 18707552 propagations, 0.59 megaprops
31.58/31.64	c
31.58/31.64	c 31.6 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-1717456-1240628367/watcher-1717456-1240628367 -o /tmp/evaluation-result-1717456-1240628367/solver-1717456-1240628367 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1717456-1240628367.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: 0.92 0.98 0.99 3/64 16270
/proc/meminfo: memFree=1147928/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=4208 CPUtime=0
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 786 0 0 0 0 0 0 0 18 0 1 0 90869912 4308992 771 1992294400 134512640 135151029 4294956240 18446744073709551615 134534335 0 0 4096 0 0 0 0 17 1 0 0
/proc/16270/statm: 1052 772 59 155 0 895 0

[startup+0.102789 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16270
/proc/meminfo: memFree=1147928/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=12396 CPUtime=0.09
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 3069 0 0 0 8 1 0 0 18 0 1 0 90869912 12693504 2956 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 3099 2956 64 155 0 2942 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12396

[startup+0.201797 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16270
/proc/meminfo: memFree=1147928/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=16472 CPUtime=0.19
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 4212 0 0 0 18 1 0 0 18 0 1 0 90869912 16867328 3970 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 4118 3970 64 155 0 3961 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 16472

[startup+0.301806 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16270
/proc/meminfo: memFree=1147928/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=21164 CPUtime=0.29
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 5385 0 0 0 27 2 0 0 19 0 1 0 90869912 21671936 5143 1992294400 134512640 135151029 4294956240 18446744073709551615 134579313 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 5291 5143 64 155 0 5134 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 21164

[startup+0.70184 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16270
/proc/meminfo: memFree=1147928/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=33144 CPUtime=0.69
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 9161 0 0 0 65 4 0 0 22 0 1 0 90869912 33939456 8149 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 8286 8149 64 155 0 8129 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 33144

[startup+1.50191 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1105104/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=48200 CPUtime=1.49
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 13154 0 0 0 143 6 0 0 25 0 1 0 90869912 49356800 11799 1992294400 134512640 135151029 4294956240 18446744073709551615 134550581 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 12050 11799 79 155 0 11893 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 48200

[startup+3.10205 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1100176/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=59936 CPUtime=3.09
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 19933 0 0 0 300 9 0 0 25 0 1 0 90869912 61374464 14730 1992294400 134512640 135151029 4294956240 18446744073709551615 134573909 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 14984 14730 79 155 0 14827 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 59936

[startup+6.30132 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1081744/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=70056 CPUtime=6.29
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 22122 0 0 0 618 11 0 0 25 0 1 0 90869912 71737344 16919 1992294400 134512640 135151029 4294956240 18446744073709551615 134549586 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 17514 16919 79 155 0 17357 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 70056

[startup+12.7019 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1080016/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=70056 CPUtime=12.69
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 22126 0 0 0 1258 11 0 0 25 0 1 0 90869912 71737344 16923 1992294400 134512640 135151029 4294956240 18446744073709551615 134526328 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 17514 16923 79 155 0 17357 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 70056

[startup+25.502 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1083920/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=65956 CPUtime=25.48
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 28306 0 0 0 2534 14 0 0 25 0 1 0 90869912 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134554770 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/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+25.602 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1083920/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=65956 CPUtime=25.58
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 28306 0 0 0 2544 14 0 0 25 0 1 0 90869912 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134555012 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 25.58
Current children cumulated vsize (KiB) 65956

[startup+28.8023 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1083920/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=65956 CPUtime=28.78
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 28306 0 0 0 2864 14 0 0 25 0 1 0 90869912 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 28.78
Current children cumulated vsize (KiB) 65956

[startup+30.4014 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1083920/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=65956 CPUtime=30.38
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 28306 0 0 0 3024 14 0 0 25 0 1 0 90869912 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134554866 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 30.38
Current children cumulated vsize (KiB) 65956

[startup+31.2015 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1083920/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=65956 CPUtime=31.18
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 28306 0 0 0 3104 14 0 0 25 0 1 0 90869912 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134554774 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 31.18
Current children cumulated vsize (KiB) 65956

[startup+31.6015 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 16271
/proc/meminfo: memFree=1083920/2055920 swapFree=4192812/4192956
[pid=16270] ppid=16268 vsize=65956 CPUtime=31.58
/proc/16270/stat : 16270 (precosat) R 16268 16270 15546 0 -1 4194304 28306 0 0 0 3144 14 0 0 25 0 1 0 90869912 67538944 15924 1992294400 134512640 135151029 4294956240 18446744073709551615 134578108 0 0 4096 17442 0 0 0 17 1 0 0
/proc/16270/statm: 16489 15924 79 155 0 16332 0
Current children cumulated CPU time (s) 31.58
Current children cumulated vsize (KiB) 65956

Child status: 20
Real time (s): 31.6521
CPU time (s): 31.6442
CPU user time (s): 31.4852
CPU system time (s): 0.158975
CPU usage (%): 99.9749
Max. virtual memory (cumulated for all children) (KiB): 70056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.4852
system time used= 0.158975
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= 2
involuntary context switches= 85

runsolver used 0.027995 second user time and 0.075988 second system time

The end

Launcher Data 

Begin job on node31 at 2009-04-25 04:59:27
IDJOB=1717456
IDBENCH=20415
IDSOLVER=507
FILE ID=node31/1717456-1240628367
PBS_JOBID= 9186353
Free space on /tmp= 66408 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-1717456-1240628367/watcher-1717456-1240628367 -o /tmp/evaluation-result-1717456-1240628367/solver-1717456-1240628367 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1717456-1240628367.cnf

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

MD5SUM BENCH= 4b97e69214a2eddbe060a9ecc3dfbbd8
RANDOM SEED=1402647923

node31.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		: 3000.213
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		: 3000.213
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:       1148344 kB
Buffers:         44568 kB
Cached:         794280 kB
SwapCached:          0 kB
Active:         119544 kB
Inactive:       734240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1148344 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7956 kB
Writeback:           0 kB
Mapped:          24652 kB
Slab:            39568 kB
Committed_AS:   300888 kB
PageTables:       1464 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66408 MiB
End job on node31 at 2009-04-25 04:59:59