Trace number 1556846

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 9.07462 9.07867

General information on the benchmark

NameAPPLICATIONS/crypto/
md5gen/gus-md5-04.cnf
MD5SUM019984f9d84c315e8eec645fb9d169da
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.32634
Satisfiable
(Un)Satisfiability was proved
Number of variables68679
Number of clauses223994
Sum of the clauses size580546
Maximum clause length3
Minimum clause length1
Number of clauses of size 1129
Number of clauses of size 291178
Number of clauses of size 3132687
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-1556846-1238750827.cnf
0.00/0.00	c found header 'p cnf 68679 223994'
0.29/0.32	c finished parsing
0.29/0.32	c
0.29/0.32	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.29/0.32	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.29/0.32	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.29/0.32	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.29/0.32	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.29/0.32	c --random=1 --spread=2000 --seed=0 --skip=25
0.29/0.32	c
0.29/0.32	c sizeof     vars[0] = 16   alignment = 0       1 MB
0.29/0.32	c sizeof     orgs[0] =  8   alignment = 0       1 MB
0.29/0.32	c sizeof     occs[0] =  8   alignment = 0       1 MB
0.29/0.32	c sizeof iirfs[0..1] =  8   alignment = 0       1 MB
0.29/0.32	c
0.29/0.32	c starting search after 0.3 seconds
0.29/0.32	c no decision limit
0.29/0.34	c
0.29/0.34	c       original/binary      fixed     eliminated      learned       agility
0.29/0.34	c   seconds        variables     equivalent    conflicts       height       MB
0.29/0.34	c
0.29/0.34	c *    0.3   223351   63192    257  5230      0       0      0    0.0   0   18
2.79/2.86	c s    2.9   161192   25559    772  5694  36654       0      0    0.0   0   17
2.79/2.86	c l    2.9   161192   25559    772  5694  36654       0 152006    0.0   0   17
3.99/4.02	c N    4.0   161241   25559    772  5694  36654     100     99    7.1  33   19
5.99/6.06	c N    6.1   163394   25496    781  5748  36654     200    193    5.6  45   20
8.99/9.07	c 0    9.1   276147     869  25462  5694  36654     370    342   21.8  45   26
8.99/9.07	c
8.99/9.07	s UNSATISFIABLE
8.99/9.07	c
8.99/9.07	c 370 conflicts, 591 decisions, 1 random
8.99/9.07	c 2 iterations, 0 restarts, 2 skipped
8.99/9.07	c 0 enlarged, 372 shrunken, 3 rescored, 0 rebiased
8.99/9.07	c 1 simplifications, 0 reductions
8.99/9.07	c
8.99/9.07	c vars: 25462 fixed, 5694 equiv, 36654 elim, 5994 merged
8.99/9.07	c elim: 1006751 resolutions, 1 phases, 1 rounds
8.99/9.07	c sbst: 99% substituted, 0.1% nots, 76.3% ands, 23.7% xors, 0.0% ites
8.99/9.07	c arty: 2.00 and 2.00 xor average arity
8.99/9.07	c prbe: 314218 probed, 4 phases, 4 rounds
8.99/9.07	c prbe: 85 failed, 220 lifted, 226 merged
8.99/9.07	c sccs: 20 non trivial, 0 fixed, 27 merged
8.99/9.07	c hash: 12 units, 5741 merged
8.99/9.07	c mins: 38278 learned, 23% deleted, 2 strong, 718 depth
8.99/9.07	c subs: 291 forward, 457 backward, 3818 doms
8.99/9.07	c strs: 6974 forward, 66 backward
8.99/9.07	c doms: 6815 dominators, 2702 high, 86 low
8.99/9.07	c prps: 4760091 propagations, 0.52 megaprops
8.99/9.07	c
8.99/9.07	c 9.1 seconds, 29 MB max, 9 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-1556846-1238750827/watcher-1556846-1238750827 -o /tmp/evaluation-result-1556846-1238750827/solver-1556846-1238750827 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1556846-1238750827.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: 1.71 1.41 1.19 3/73 3342
/proc/meminfo: memFree=1697312/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=3484 CPUtime=0
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 677 0 0 0 0 0 0 0 20 0 1 0 1147747354 3567616 662 1992294400 134512640 135151029 4294956224 18446744073709551615 134534335 0 0 4096 0 0 0 0 17 1 0 0
/proc/3342/statm: 871 662 59 155 0 714 0

[startup+0.0801209 s]
/proc/loadavg: 1.71 1.41 1.19 3/73 3342
/proc/meminfo: memFree=1697312/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=10392 CPUtime=0.07
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 2486 0 0 0 6 1 0 0 20 0 1 0 1147747354 10641408 2438 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 2598 2438 64 155 0 2441 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 10392

[startup+0.101122 s]
/proc/loadavg: 1.71 1.41 1.19 3/73 3342
/proc/meminfo: memFree=1697312/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=11440 CPUtime=0.09
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 2800 0 0 0 8 1 0 0 20 0 1 0 1147747354 11714560 2687 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 2860 2687 64 155 0 2703 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11440

[startup+0.301143 s]
/proc/loadavg: 1.71 1.41 1.19 3/73 3342
/proc/meminfo: memFree=1697312/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=21720 CPUtime=0.29
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 5509 0 0 0 27 2 0 0 22 0 1 0 1147747354 22241280 5267 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 5430 5268 64 155 0 5273 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 21720

[startup+0.701191 s]
/proc/loadavg: 1.71 1.41 1.19 3/73 3342
/proc/meminfo: memFree=1697312/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=26352 CPUtime=0.69
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 6851 0 0 0 66 3 0 0 25 0 1 0 1147747354 26984448 6339 1992294400 134512640 135151029 4294956224 18446744073709551615 134678810 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 6588 6339 79 155 0 6431 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 26352

[startup+1.50128 s]
/proc/loadavg: 1.71 1.41 1.19 2/74 3343
/proc/meminfo: memFree=1672856/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=32276 CPUtime=1.49
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 9002 0 0 0 145 4 0 0 25 0 1 0 1147747354 33050624 7847 1992294400 134512640 135151029 4294956224 18446744073709551615 134672959 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 8069 7847 79 155 0 7912 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 32276

[startup+3.10147 s]
/proc/loadavg: 1.66 1.40 1.19 2/74 3343
/proc/meminfo: memFree=1661784/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=33944 CPUtime=3.09
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 10149 0 0 0 305 4 0 0 25 0 1 0 1147747354 34758656 8199 1992294400 134512640 135151029 4294956224 18446744073709551615 134567909 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 8486 8199 79 155 0 8329 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 33944

[startup+6.30185 s]
/proc/loadavg: 1.66 1.40 1.19 2/74 3343
/proc/meminfo: memFree=1664408/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=33948 CPUtime=6.29
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 10150 0 0 0 624 5 0 0 25 0 1 0 1147747354 34762752 8200 1992294400 134512640 135151029 4294956224 18446744073709551615 134551294 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 8487 8200 79 155 0 8330 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 33948

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

[startup+7.90103 s]
/proc/loadavg: 1.76 1.43 1.20 2/74 3343
/proc/meminfo: memFree=1664408/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=34976 CPUtime=7.89
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 10407 0 0 0 784 5 0 0 25 0 1 0 1147747354 35815424 8457 1992294400 134512640 135151029 4294956224 18446744073709551615 134567706 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 8744 8457 79 155 0 8587 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 34976

[startup+8.70113 s]
/proc/loadavg: 1.76 1.43 1.20 2/74 3343
/proc/meminfo: memFree=1663448/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=34976 CPUtime=8.69
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 10407 0 0 0 864 5 0 0 25 0 1 0 1147747354 35815424 8457 1992294400 134512640 135151029 4294956224 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 8744 8457 79 155 0 8587 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 34976

[startup+8.90115 s]
/proc/loadavg: 1.76 1.43 1.20 2/74 3343
/proc/meminfo: memFree=1663448/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=34976 CPUtime=8.89
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 10407 0 0 0 884 5 0 0 25 0 1 0 1147747354 35815424 8457 1992294400 134512640 135151029 4294956224 18446744073709551615 134552542 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 8744 8457 79 155 0 8587 0
Current children cumulated CPU time (s) 8.89
Current children cumulated vsize (KiB) 34976

[startup+9.00117 s]
/proc/loadavg: 1.76 1.43 1.20 2/74 3343
/proc/meminfo: memFree=1663448/2055920 swapFree=4175504/4192956
[pid=3342] ppid=3340 vsize=34976 CPUtime=8.99
/proc/3342/stat : 3342 (precosat) R 3340 3342 2689 0 -1 4194304 10407 0 0 0 894 5 0 0 25 0 1 0 1147747354 35815424 8457 1992294400 134512640 135151029 4294956224 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/3342/statm: 8744 8457 79 155 0 8587 0
Current children cumulated CPU time (s) 8.99
Current children cumulated vsize (KiB) 34976

Child status: 20
Real time (s): 9.07867
CPU time (s): 9.07462
CPU user time (s): 9.01463
CPU system time (s): 0.05999
CPU usage (%): 99.9553
Max. virtual memory (cumulated for all children) (KiB): 37064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.01463
system time used= 0.05999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10408
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= 15

runsolver used 0.013997 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node77 at 2009-04-03 11:27:08
IDJOB=1556846
IDBENCH=70827
IDSOLVER=507
FILE ID=node77/1556846-1238750827
PBS_JOBID= 9085418
Free space on /tmp= 66548 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/APPLICATIONS/crypto/md5gen/gus-md5-04.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1556846-1238750827/watcher-1556846-1238750827 -o /tmp/evaluation-result-1556846-1238750827/solver-1556846-1238750827 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1556846-1238750827.cnf

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

MD5SUM BENCH= 019984f9d84c315e8eec645fb9d169da
RANDOM SEED=1207953680

node77.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		: 3000.230
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		: 3000.230
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:       1697728 kB
Buffers:         50560 kB
Cached:         223252 kB
SwapCached:       9068 kB
Active:         105900 kB
Inactive:       178600 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1697728 kB
SwapTotal:     4192956 kB
SwapFree:      4175504 kB
Dirty:            4924 kB
Writeback:           0 kB
Mapped:          17580 kB
Slab:            58756 kB
Committed_AS:  2985732 kB
PageTables:       1984 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= 66548 MiB
End job on node77 at 2009-04-03 11:27:17