Trace number 1723200

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 28.3407 28.3539

General information on the benchmark

Namemanol-pipe-c10nidw_s.cnf
MD5SUM7989bb134c6f50cb418407e85e733980
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark21.7277
Satisfiable
(Un)Satisfiability was proved
Number of variables404382
Number of clauses1204273
Sum of the clauses size2809969
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2802848
Number of clauses of size 3401424
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-1723200-1240684101.cnf
0.00/0.00	c found header 'p cnf 404382 1204273'
2.48/2.60	c finished parsing
2.48/2.60	c
2.48/2.60	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
2.48/2.60	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
2.48/2.60	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
2.48/2.60	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
2.48/2.60	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
2.48/2.60	c --random=1 --spread=2000 --seed=0 --skip=25
2.48/2.60	c
2.48/2.60	c sizeof     vars[0] = 16   alignment = 0       6 MB
2.48/2.60	c sizeof     orgs[0] =  8   alignment = 0       3 MB
2.48/2.60	c sizeof     occs[0] =  8   alignment = 0       3 MB
2.48/2.60	c sizeof iirfs[0..1] =  8   alignment = 0       3 MB
2.48/2.60	c
2.48/2.60	c starting search after 2.6 seconds
2.48/2.60	c no decision limit
2.58/2.69	c
2.58/2.69	c       original/binary      fixed     eliminated      learned       agility
2.58/2.69	c   seconds        variables     equivalent    conflicts       height       MB
2.58/2.69	c
2.58/2.69	c *    2.7  1204272  404381      1     0      0       0      0    0.0   0  104
21.48/21.51	c s   21.5   459256   66857  10673  2096 324756       0      0    0.0   0   73
21.48/21.51	c l   21.5   459256   66857  10673  2096 324756       0 410531    0.0   0   73
21.78/21.82	c R   21.8   459373   66857  10673  2096 324756     100     99  625.2   9   76
21.78/21.87	c R   21.9   459403   66857  10673  2096 324756     201    200  520.4  12   76
22.58/22.64	c B   22.6   460801   66717  10775  2134 324756    1001    966  554.3  23   77
22.78/22.84	c R   22.8   461255   66717  10775  2134 324756    1288   1247  527.1   0   78
24.98/25.05	c B   25.0   484249   65190  11745  2691 324756    2001   1939  467.9  15   81
25.38/25.43	c R   25.4   487739   65183  11745  2698 324756    3714   3633  459.1  14   81
26.38/26.46	c N   26.4   493891   65160  11745  2721 324756    7733   7603  450.6  25   82
26.58/26.60	c B   26.6   494142   65159  11745  2722 324756    8005   7873  452.1  28   82
28.28/28.32	c 0   28.3   502897   65037  11844  2745 324756   14974  14756  406.6   9   83
28.28/28.32	c
28.28/28.32	s UNSATISFIABLE
28.28/28.32	c
28.28/28.32	c 14974 conflicts, 124749 decisions, 42 random
28.28/28.32	c 7 iterations, 67 restarts, 1 skipped
28.28/28.32	c 0 enlarged, 271 shrunken, 146 rescored, 9 rebiased
28.28/28.32	c 1 simplifications, 0 reductions
28.28/28.32	c
28.28/28.32	c vars: 11844 fixed, 2745 equiv, 324756 elim, 2878 merged
28.28/28.32	c elim: 6559301 resolutions, 1 phases, 1 rounds
28.28/28.32	c sbst: 96% substituted, 3.1% nots, 81.4% ands, 9.1% xors, 6.3% ites
28.28/28.32	c arty: 2.10 and 2.00 xor average arity
28.28/28.32	c prbe: 260121 probed, 3 phases, 1 rounds
28.28/28.32	c prbe: 344 failed, 4277 lifted, 1040 merged
28.28/28.32	c sccs: 13 non trivial, 0 fixed, 17 merged
28.28/28.32	c hash: 48 units, 1821 merged
28.28/28.32	c mins: 253486 learned, 24% deleted, 37 strong, 34 depth
28.28/28.32	c subs: 317 forward, 691 backward, 25228 doms
28.28/28.32	c strs: 381 forward, 212 backward
28.28/28.32	c doms: 29416 dominators, 20766 high, 89 low
28.28/28.32	c prps: 4199479 propagations, 0.15 megaprops
28.28/28.32	c
28.28/28.32	c 28.3 seconds, 144 MB max, 75 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-1723200-1240684101/watcher-1723200-1240684101 -o /tmp/evaluation-result-1723200-1240684101/solver-1723200-1240684101 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1723200-1240684101.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: 1.00 1.01 1.00 2/64 15803
/proc/meminfo: memFree=1949288/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=7108 CPUtime=0
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 891 0 0 0 0 0 0 0 18 0 1 0 96437714 7278592 876 1992294400 134512640 135151029 4294956224 18446744073709551615 134697845 0 0 4096 0 0 0 0 17 1 0 0
/proc/15803/statm: 1777 883 58 155 0 1620 0

[startup+0.038529 s]
/proc/loadavg: 1.00 1.01 1.00 2/64 15803
/proc/meminfo: memFree=1949288/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=17104 CPUtime=0.02
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 3639 0 0 0 1 1 0 0 18 0 1 0 96437714 17514496 3624 1992294400 134512640 135151029 4294956224 18446744073709551615 134534335 0 0 4096 0 0 0 0 17 1 0 0
/proc/15803/statm: 4276 3624 59 155 0 4119 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 17104

[startup+0.101519 s]
/proc/loadavg: 1.00 1.01 1.00 2/64 15803
/proc/meminfo: memFree=1949288/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=32072 CPUtime=0.09
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 6310 0 0 0 7 2 0 0 18 0 1 0 96437714 32841728 6295 1992294400 134512640 135151029 4294956224 18446744073709551615 134697845 0 0 4096 0 0 0 0 17 1 0 0
/proc/15803/statm: 8018 6302 59 155 0 7861 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 32072

[startup+0.301533 s]
/proc/loadavg: 1.00 1.01 1.00 2/64 15803
/proc/meminfo: memFree=1949288/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=43784 CPUtime=0.29
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 10945 0 0 0 24 5 0 0 19 0 1 0 96437714 44834816 10703 1992294400 134512640 135151029 4294956224 18446744073709551615 134682423 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 10946 10703 63 155 0 10789 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 43784

[startup+0.701557 s]
/proc/loadavg: 1.00 1.01 1.00 2/64 15803
/proc/meminfo: memFree=1949288/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=58800 CPUtime=0.69
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 14976 0 0 0 62 7 0 0 23 0 1 0 96437714 60211200 14477 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 14700 14477 63 155 0 14543 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 58800

[startup+1.50261 s]
/proc/loadavg: 1.00 1.01 1.00 2/65 15804
/proc/meminfo: memFree=1881440/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=85940 CPUtime=1.5
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 22268 0 0 0 138 12 0 0 25 0 1 0 96437714 88002560 21256 1992294400 134512640 135151029 4294956224 18446744073709551615 134572611 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 21485 21256 63 155 0 21328 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 85940

[startup+3.10172 s]
/proc/loadavg: 1.00 1.01 1.00 2/65 15804
/proc/meminfo: memFree=1845216/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=134812 CPUtime=3.09
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 35413 0 0 0 289 20 0 0 25 0 1 0 96437714 138047488 33375 1992294400 134512640 135151029 4294956224 18446744073709551615 134531920 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 33703 33375 79 155 0 33546 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 134812

[startup+6.30193 s]
/proc/loadavg: 1.00 1.01 1.00 2/65 15804
/proc/meminfo: memFree=1810976/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=151996 CPUtime=6.29
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 48064 0 0 0 603 26 0 0 25 0 1 0 96437714 155643904 37654 1992294400 134512640 135151029 4294956224 18446744073709551615 134572722 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 37999 37654 79 155 0 37842 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 151996

[startup+12.7014 s]
/proc/loadavg: 1.00 1.01 1.00 2/65 15804
/proc/meminfo: memFree=1770912/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=185044 CPUtime=12.68
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 56338 0 0 0 1238 30 0 0 25 0 1 0 96437714 189485056 44903 1992294400 134512640 135151029 4294956224 18446744073709551615 134526197 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 46261 44903 79 155 0 46104 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 185044

[startup+25.5012 s]
/proc/loadavg: 1.00 1.01 1.00 2/65 15804
/proc/meminfo: memFree=1790368/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=161104 CPUtime=25.48
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 58421 0 0 0 2515 33 0 0 25 0 1 0 96437714 164970496 39688 1992294400 134512640 135151029 4294956224 18446744073709551615 134520115 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 40276 39688 79 155 0 40119 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 161104

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

[startup+27.1023 s]
/proc/loadavg: 1.00 1.01 1.00 2/65 15804
/proc/meminfo: memFree=1790496/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=161104 CPUtime=27.08
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 58421 0 0 0 2675 33 0 0 25 0 1 0 96437714 164970496 39688 1992294400 134512640 135151029 4294956224 18446744073709551615 134567814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 40276 39688 79 155 0 40119 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 161104

[startup+27.9014 s]
/proc/loadavg: 1.00 1.01 1.00 2/65 15804
/proc/meminfo: memFree=1790496/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=161104 CPUtime=27.88
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 58421 0 0 0 2755 33 0 0 25 0 1 0 96437714 164970496 39688 1992294400 134512640 135151029 4294956224 18446744073709551615 134552306 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 40276 39688 79 155 0 40119 0
Current children cumulated CPU time (s) 27.88
Current children cumulated vsize (KiB) 161104

[startup+28.3014 s]
/proc/loadavg: 1.00 1.01 1.00 2/65 15804
/proc/meminfo: memFree=1790496/2055920 swapFree=4191692/4192956
[pid=15803] ppid=15801 vsize=161104 CPUtime=28.28
/proc/15803/stat : 15803 (precosat) R 15801 15803 15468 0 -1 4194304 58421 0 0 0 2795 33 0 0 25 0 1 0 96437714 164970496 39688 1992294400 134512640 135151029 4294956224 18446744073709551615 134573875 0 0 4096 17442 0 0 0 17 1 0 0
/proc/15803/statm: 40276 39688 79 155 0 40119 0
Current children cumulated CPU time (s) 28.28
Current children cumulated vsize (KiB) 161104

Child status: 20
Real time (s): 28.3539
CPU time (s): 28.3407
CPU user time (s): 27.9807
CPU system time (s): 0.359945
CPU usage (%): 99.9534
Max. virtual memory (cumulated for all children) (KiB): 190060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.9807
system time used= 0.359945
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 58422
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= 80

runsolver used 0.027995 second user time and 0.06399 second system time

The end

Launcher Data 

Begin job on node52 at 2009-04-25 20:28:22
IDJOB=1723200
IDBENCH=71688
IDSOLVER=507
FILE ID=node52/1723200-1240684101
PBS_JOBID= 9186665
Free space on /tmp= 66212 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT_RACE06/manol-pipe-c10nidw_s.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723200-1240684101/watcher-1723200-1240684101 -o /tmp/evaluation-result-1723200-1240684101/solver-1723200-1240684101 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1723200-1240684101.cnf

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

MD5SUM BENCH= 7989bb134c6f50cb418407e85e733980
RANDOM SEED=724741677

node52.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		: 3000.214
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		: 3000.214
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:       1949704 kB
Buffers:           896 kB
Cached:          43776 kB
SwapCached:        208 kB
Active:          53836 kB
Inactive:         4100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1949704 kB
SwapTotal:     4192956 kB
SwapFree:      4191692 kB
Dirty:           22780 kB
Writeback:           0 kB
Mapped:          21764 kB
Slab:            34160 kB
Committed_AS:   360256 kB
PageTables:       1476 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= 66212 MiB
End job on node52 at 2009-04-25 20:28:51