Trace number 1556794

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 24.8492 24.8569

General information on the benchmark

NameAPPLICATIONS/crypto/
md5gen/gus-md5-05.cnf
MD5SUM2802e980ef7a0af021d80df126a2e28c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.1175
Satisfiable
(Un)Satisfiability was proved
Number of variables68827
Number of clauses224473
Sum of the clauses size581793
Maximum clause length3
Minimum clause length1
Number of clauses of size 1129
Number of clauses of size 291368
Number of clauses of size 3132976
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-1556794-1238750577.cnf
0.00/0.00	c found header 'p cnf 68827 224473'
0.29/0.34	c finished parsing
0.29/0.34	c
0.29/0.34	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.29/0.34	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.29/0.34	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.29/0.34	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.29/0.34	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.29/0.34	c --random=1 --spread=2000 --seed=0 --skip=25
0.29/0.34	c
0.29/0.34	c sizeof     vars[0] = 16   alignment = 0       1 MB
0.29/0.34	c sizeof     orgs[0] =  8   alignment = 0       1 MB
0.29/0.34	c sizeof     occs[0] =  8   alignment = 0       1 MB
0.29/0.34	c sizeof iirfs[0..1] =  8   alignment = 0       1 MB
0.29/0.35	c
0.29/0.35	c starting search after 0.3 seconds
0.29/0.35	c no decision limit
0.29/0.36	c
0.29/0.36	c       original/binary      fixed     eliminated      learned       agility
0.29/0.36	c   seconds        variables     equivalent    conflicts       height       MB
0.29/0.36	c
0.29/0.36	c *    0.4   223830   63330    257  5240      0       0      0    0.0   0   18
2.89/2.99	c s    3.0   161982   25727    596  5677  36827       0      0    0.0   0   17
2.89/2.99	c l    3.0   161982   25727    596  5677  36827       0 152855    0.0   0   17
4.40/4.41	c N    4.4   161982   25727    596  5677  36827     101    101    6.3  40   19
6.19/6.23	c N    6.2   162027   25724    596  5680  36827     202    202    6.0  46   20
13.89/13.94	c s   13.9   161838   25703    596  5680  36848     521    519    5.1  47   17
24.48/24.51	c s   24.5    55847    8737   9542 13589  36959     977      0    4.4  41   11
24.48/24.51	c -   24.5    55847    8737   9542 13589  36959     977  53500    4.4  41   11
24.48/24.52	c B   24.5    55848    8737   9542 13589  36959    1001     24   28.0  39   11
24.78/24.85	c 0   24.8    72650    6406  11873 13589  36959    1273    276   68.1  42   13
24.78/24.85	c
24.78/24.85	s UNSATISFIABLE
24.78/24.85	c
24.78/24.85	c 1273 conflicts, 2784 decisions, 1 random
24.78/24.85	c 6 iterations, 0 restarts, 9 skipped
24.78/24.85	c 0 enlarged, 490 shrunken, 12 rescored, 1 rebiased
24.78/24.85	c 3 simplifications, 0 reductions
24.78/24.85	c
24.78/24.85	c vars: 11873 fixed, 13589 equiv, 36959 elim, 13818 merged
24.78/24.85	c elim: 1453735 resolutions, 3 phases, 2 rounds
24.78/24.85	c sbst: 99% substituted, 0.2% nots, 76.1% ands, 23.7% xors, 0.0% ites
24.78/24.85	c arty: 2.00 and 2.00 xor average arity
24.78/24.85	c prbe: 245363 probed, 7 phases, 4 rounds
24.78/24.85	c prbe: 86 failed, 8743 lifted, 7936 merged
24.78/24.85	c sccs: 17 non trivial, 0 fixed, 37 merged
24.78/24.85	c hash: 104 units, 5845 merged
24.78/24.85	c mins: 130454 learned, 25% deleted, 0 strong, 717 depth
24.78/24.85	c subs: 429 forward, 772 backward, 5150 doms
24.78/24.85	c strs: 7266 forward, 135 backward
24.78/24.85	c doms: 9586 dominators, 3791 high, 146 low
24.78/24.85	c prps: 13869915 propagations, 0.56 megaprops
24.78/24.85	c
24.78/24.85	c 24.8 seconds, 29 MB max, 18 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-1556794-1238750577/watcher-1556794-1238750577 -o /tmp/evaluation-result-1556794-1238750577/solver-1556794-1238750577 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1556794-1238750577.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 3/70 20712
/proc/meminfo: memFree=1170496/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=3484 CPUtime=0
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 664 0 0 0 0 0 0 0 18 0 1 0 1147722785 3567616 649 1992294400 134512640 135151029 4294956240 18446744073709551615 134534376 0 0 4096 0 0 0 0 17 1 0 0
/proc/20712/statm: 871 650 59 155 0 714 0

[startup+0.0724059 s]
/proc/loadavg: 0.92 0.98 0.99 3/70 20712
/proc/meminfo: memFree=1170496/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=9732 CPUtime=0.06
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 2326 0 0 0 5 1 0 0 18 0 1 0 1147722785 9965568 2278 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 2433 2278 64 155 0 2276 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 9732

[startup+0.101407 s]
/proc/loadavg: 0.92 0.98 0.99 3/70 20712
/proc/meminfo: memFree=1170496/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=11176 CPUtime=0.09
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 2722 0 0 0 8 1 0 0 18 0 1 0 1147722785 11444224 2609 1992294400 134512640 135151029 4294956240 18446744073709551615 134682423 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 2794 2610 64 155 0 2637 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11176

[startup+0.301431 s]
/proc/loadavg: 0.92 0.98 0.99 3/70 20712
/proc/meminfo: memFree=1170496/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=20796 CPUtime=0.29
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 5279 0 0 0 26 3 0 0 19 0 1 0 1147722785 21295104 5037 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 5199 5037 64 155 0 5042 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 20796

[startup+0.701477 s]
/proc/loadavg: 0.92 0.98 0.99 3/70 20712
/proc/meminfo: memFree=1170496/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=27212 CPUtime=0.69
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 6842 0 0 0 65 4 0 0 22 0 1 0 1147722785 27865088 6599 1992294400 134512640 135151029 4294956240 18446744073709551615 134532453 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 6803 6599 79 155 0 6646 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 27212

[startup+1.50157 s]
/proc/loadavg: 0.92 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1146360/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=32024 CPUtime=1.49
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 9385 0 0 0 144 5 0 0 25 0 1 0 1147722785 32792576 7791 1992294400 134512640 135151029 4294956240 18446744073709551615 134519573 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 8006 7791 79 155 0 7849 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 32024

[startup+3.10175 s]
/proc/loadavg: 0.92 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1136248/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=33000 CPUtime=3.09
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 10628 0 0 0 303 6 0 0 25 0 1 0 1147722785 33792000 7969 1992294400 134512640 135151029 4294956240 18446744073709551615 134574081 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 8250 7969 79 155 0 8093 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 33000

[startup+6.30112 s]
/proc/loadavg: 0.93 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1138488/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=33004 CPUtime=6.29
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 10629 0 0 0 623 6 0 0 25 0 1 0 1147722785 33796096 7970 1992294400 134512640 135151029 4294956240 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 8251 7970 79 155 0 8094 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 33004

[startup+12.7019 s]
/proc/loadavg: 0.93 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1138496/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=33004 CPUtime=12.69
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 10629 0 0 0 1263 6 0 0 25 0 1 0 1147722785 33796096 7970 1992294400 134512640 135151029 4294956240 18446744073709551615 134542806 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 8251 7970 79 155 0 8094 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 33004

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

[startup+19.1016 s]
/proc/loadavg: 0.94 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1138304/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=33004 CPUtime=19.09
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 11571 0 0 0 1903 6 0 0 25 0 1 0 1147722785 33796096 7970 1992294400 134512640 135151029 4294956240 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 8251 7970 79 155 0 8094 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 33004

[startup+22.302 s]
/proc/loadavg: 0.94 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1138304/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=34032 CPUtime=22.28
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 11828 0 0 0 2222 6 0 0 25 0 1 0 1147722785 34848768 8227 1992294400 134512640 135151029 4294956240 18446744073709551615 134554809 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 8508 8227 79 155 0 8351 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 34032

[startup+23.9012 s]
/proc/loadavg: 0.94 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1137472/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=34032 CPUtime=23.88
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 11840 0 0 0 2382 6 0 0 25 0 1 0 1147722785 34848768 8239 1992294400 134512640 135151029 4294956240 18446744073709551615 134557093 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 8508 8239 79 155 0 8351 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 34032

[startup+24.3012 s]
/proc/loadavg: 0.95 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1137216/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=36236 CPUtime=24.28
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 12917 0 0 0 2422 6 0 0 25 0 1 0 1147722785 37105664 8790 1992294400 134512640 135151029 4294956240 18446744073709551615 134579805 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 9059 8790 79 155 0 8902 0
Current children cumulated CPU time (s) 24.28
Current children cumulated vsize (KiB) 36236

[startup+24.7012 s]
/proc/loadavg: 0.95 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1137216/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=33004 CPUtime=24.68
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 12918 0 0 0 2462 6 0 0 25 0 1 0 1147722785 33796096 7983 1992294400 134512640 135151029 4294956240 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 8251 7983 79 155 0 8094 0
Current children cumulated CPU time (s) 24.68
Current children cumulated vsize (KiB) 33004

[startup+24.8013 s]
/proc/loadavg: 0.95 0.98 0.99 2/71 20713
/proc/meminfo: memFree=1137216/2055920 swapFree=4174016/4192956
[pid=20712] ppid=20710 vsize=33004 CPUtime=24.78
/proc/20712/stat : 20712 (precosat) R 20710 20712 20326 0 -1 4194304 12918 0 0 0 2472 6 0 0 25 0 1 0 1147722785 33796096 7983 1992294400 134512640 135151029 4294956240 18446744073709551615 134551954 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20712/statm: 8251 7983 79 155 0 8094 0
Current children cumulated CPU time (s) 24.78
Current children cumulated vsize (KiB) 33004

Child status: 20
Real time (s): 24.8569
CPU time (s): 24.8492
CPU user time (s): 24.7742
CPU system time (s): 0.074988
CPU usage (%): 99.9692
Max. virtual memory (cumulated for all children) (KiB): 36996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.7742
system time used= 0.074988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12919
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= 31

runsolver used 0.024996 second user time and 0.073988 second system time

The end

Launcher Data 

Begin job on node74 at 2009-04-03 11:22:57
IDJOB=1556794
IDBENCH=70826
IDSOLVER=507
FILE ID=node74/1556794-1238750577
PBS_JOBID= 9085425
Free space on /tmp= 103224 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/APPLICATIONS/crypto/md5gen/gus-md5-05.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1556794-1238750577/watcher-1556794-1238750577 -o /tmp/evaluation-result-1556794-1238750577/solver-1556794-1238750577 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1556794-1238750577.cnf

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

MD5SUM BENCH= 2802e980ef7a0af021d80df126a2e28c
RANDOM SEED=723801066

node74.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		: 3000.236
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		: 3000.236
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:       1170912 kB
Buffers:         96636 kB
Cached:         695176 kB
SwapCached:       8140 kB
Active:         298660 kB
Inactive:       502860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1170912 kB
SwapTotal:     4192956 kB
SwapFree:      4174016 kB
Dirty:            4764 kB
Writeback:           0 kB
Mapped:          15080 kB
Slab:            68752 kB
Committed_AS:  2573872 kB
PageTables:       1852 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= 103224 MiB
End job on node74 at 2009-04-03 11:23:22