Trace number 1773941

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 24.8352 24.8435

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 benchmark10.5074
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-1773941-1241187354.cnf
0.00/0.00	c found header 'p cnf 68827 224473'
0.29/0.35	c finished parsing
0.29/0.35	c
0.29/0.35	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.29/0.35	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.29/0.35	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.29/0.35	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.29/0.35	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.29/0.35	c --random=1 --spread=2000 --seed=0 --skip=25
0.29/0.35	c
0.29/0.35	c sizeof     vars[0] = 16   alignment = 0       1 MB
0.29/0.35	c sizeof     orgs[0] =  8   alignment = 0       1 MB
0.29/0.35	c sizeof     occs[0] =  8   alignment = 0       1 MB
0.29/0.35	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
2.89/2.98	c s    3.0   161982   25727    596  5677  36827       0      0    0.0   0   17
2.89/2.98	c l    3.0   161982   25727    596  5677  36827       0 152855    0.0   0   17
4.29/4.39	c N    4.4   161982   25727    596  5677  36827     101    101    6.3  40   19
6.19/6.20	c N    6.2   162027   25724    596  5680  36827     202    202    6.0  46   20
13.89/13.91	c s   13.9   161838   25703    596  5680  36848     521    519    5.1  47   17
24.49/24.50	c s   24.5    55847    8737   9542 13589  36959     977      0    4.4  41   11
24.49/24.50	c -   24.5    55847    8737   9542 13589  36959     977  53500    4.4  41   11
24.49/24.51	c B   24.5    55848    8737   9542 13589  36959    1001     24   28.0  39   11
24.79/24.83	c 0   24.8    72650    6406  11873 13589  36959    1273    276   68.1  42   13
24.79/24.83	c
24.79/24.83	s UNSATISFIABLE
24.79/24.83	c
24.79/24.83	c 1273 conflicts, 2784 decisions, 1 random
24.79/24.83	c 6 iterations, 0 restarts, 9 skipped
24.79/24.83	c 0 enlarged, 490 shrunken, 12 rescored, 1 rebiased
24.79/24.83	c 3 simplifications, 0 reductions
24.79/24.83	c
24.79/24.83	c vars: 11873 fixed, 13589 equiv, 36959 elim, 13818 merged
24.79/24.83	c elim: 1453735 resolutions, 3 phases, 2 rounds
24.79/24.83	c sbst: 99% substituted, 0.2% nots, 76.1% ands, 23.7% xors, 0.0% ites
24.79/24.83	c arty: 2.00 and 2.00 xor average arity
24.79/24.83	c prbe: 245363 probed, 7 phases, 4 rounds
24.79/24.83	c prbe: 86 failed, 8743 lifted, 7936 merged
24.79/24.83	c sccs: 17 non trivial, 0 fixed, 37 merged
24.79/24.83	c hash: 104 units, 5845 merged
24.79/24.83	c mins: 130454 learned, 25% deleted, 0 strong, 717 depth
24.79/24.83	c subs: 429 forward, 772 backward, 5150 doms
24.79/24.83	c strs: 7266 forward, 135 backward
24.79/24.83	c doms: 9586 dominators, 3791 high, 146 low
24.79/24.83	c prps: 13869915 propagations, 0.56 megaprops
24.79/24.83	c
24.79/24.83	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-1773941-1241187354/watcher-1773941-1241187354 -o /tmp/evaluation-result-1773941-1241187354/solver-1773941-1241187354 -C 10000 -W 12000 -M 1800 HOME/precosat HOME/instance-1773941-1241187354.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): 12000 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: 0.94 0.97 0.94 3/64 26759
/proc/meminfo: memFree=1156408/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=3484 CPUtime=0
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 656 0 0 0 0 0 0 0 18 0 1 0 146768661 3567616 641 1992294400 134512640 135151029 4294956240 18446744073709551615 134534335 0 0 4096 0 0 0 0 17 1 0 0
/proc/26759/statm: 871 641 59 155 0 714 0

[startup+0.0615629 s]
/proc/loadavg: 0.94 0.97 0.94 3/64 26759
/proc/meminfo: memFree=1156408/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=9204 CPUtime=0.05
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 2169 0 0 0 5 0 0 0 18 0 1 0 146768661 9424896 2121 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 2301 2121 64 155 0 2144 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 9204

[startup+0.101569 s]
/proc/loadavg: 0.94 0.97 0.94 3/64 26759
/proc/meminfo: memFree=1156408/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=11044 CPUtime=0.09
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 2712 0 0 0 8 1 0 0 18 0 1 0 146768661 11309056 2599 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 2761 2600 64 155 0 2604 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11044

[startup+0.301604 s]
/proc/loadavg: 0.94 0.97 0.94 3/64 26759
/proc/meminfo: memFree=1156408/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=20796 CPUtime=0.29
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 5266 0 0 0 27 2 0 0 19 0 1 0 146768661 21295104 5024 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 5199 5025 64 155 0 5042 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 20796

[startup+0.701674 s]
/proc/loadavg: 0.94 0.97 0.94 3/64 26759
/proc/meminfo: memFree=1156408/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=27212 CPUtime=0.69
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 6842 0 0 0 66 3 0 0 22 0 1 0 146768661 27865088 6599 1992294400 134512640 135151029 4294956240 18446744073709551615 134532490 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 6803 6599 79 155 0 6646 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 27212

[startup+1.50181 s]
/proc/loadavg: 0.94 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1132208/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=32024 CPUtime=1.49
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 9385 0 0 0 145 4 0 0 25 0 1 0 146768661 32792576 7791 1992294400 134512640 135151029 4294956240 18446744073709551615 134519079 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 8006 7791 79 155 0 7849 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 32024

[startup+3.1011 s]
/proc/loadavg: 0.94 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1122160/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=33000 CPUtime=3.09
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 10628 0 0 0 304 5 0 0 25 0 1 0 146768661 33792000 7969 1992294400 134512640 135151029 4294956240 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 8250 7969 79 155 0 8093 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 33000

[startup+6.30166 s]
/proc/loadavg: 0.94 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1124408/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=33004 CPUtime=6.29
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 10629 0 0 0 624 5 0 0 25 0 1 0 146768661 33796096 7970 1992294400 134512640 135151029 4294956240 18446744073709551615 134542806 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 8251 7970 79 155 0 8094 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 33004

[startup+12.7018 s]
/proc/loadavg: 0.95 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1124344/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=33004 CPUtime=12.68
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 10629 0 0 0 1263 5 0 0 25 0 1 0 146768661 33796096 7970 1992294400 134512640 135151029 4294956240 18446744073709551615 134551383 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 8251 7970 79 155 0 8094 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 33004

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

[startup+19.1029 s]
/proc/loadavg: 0.95 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1124216/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=33004 CPUtime=19.09
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 11571 0 0 0 1903 6 0 0 25 0 1 0 146768661 33796096 7970 1992294400 134512640 135151029 4294956240 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 8251 7970 79 155 0 8094 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 33004

[startup+22.3015 s]
/proc/loadavg: 0.95 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1124216/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=34032 CPUtime=22.28
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 11828 0 0 0 2222 6 0 0 25 0 1 0 146768661 34848768 8227 1992294400 134512640 135151029 4294956240 18446744073709551615 134552227 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 8508 8227 79 155 0 8351 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 34032

[startup+23.9018 s]
/proc/loadavg: 0.96 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1123384/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=34032 CPUtime=23.88
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 11840 0 0 0 2382 6 0 0 25 0 1 0 146768661 34848768 8239 1992294400 134512640 135151029 4294956240 18446744073709551615 134554855 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 8508 8239 79 155 0 8351 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 34032

[startup+24.3018 s]
/proc/loadavg: 0.96 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1124152/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=36236 CPUtime=24.29
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 12917 0 0 0 2422 7 0 0 25 0 1 0 146768661 37105664 8790 1992294400 134512640 135151029 4294956240 18446744073709551615 134672959 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 9059 8790 79 155 0 8902 0
Current children cumulated CPU time (s) 24.29
Current children cumulated vsize (KiB) 36236

[startup+24.7019 s]
/proc/loadavg: 0.96 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1124152/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=33004 CPUtime=24.69
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 12918 0 0 0 2462 7 0 0 25 0 1 0 146768661 33796096 7983 1992294400 134512640 135151029 4294956240 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 8251 7983 79 155 0 8094 0
Current children cumulated CPU time (s) 24.69
Current children cumulated vsize (KiB) 33004

[startup+24.8019 s]
/proc/loadavg: 0.96 0.97 0.94 2/65 26760
/proc/meminfo: memFree=1124152/2055920 swapFree=4181908/4192956
[pid=26759] ppid=26757 vsize=33004 CPUtime=24.79
/proc/26759/stat : 26759 (precosat) R 26757 26759 26695 0 -1 4194304 12918 0 0 0 2472 7 0 0 25 0 1 0 146768661 33796096 7983 1992294400 134512640 135151029 4294956240 18446744073709551615 134580562 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26759/statm: 8251 7983 79 155 0 8094 0
Current children cumulated CPU time (s) 24.79
Current children cumulated vsize (KiB) 33004

Child status: 20
Real time (s): 24.8435
CPU time (s): 24.8352
CPU user time (s): 24.7562
CPU system time (s): 0.078987
CPU usage (%): 99.9668
Max. virtual memory (cumulated for all children) (KiB): 36996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.7562
system time used= 0.078987
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= 64

runsolver used 0.025996 second user time and 0.05999 second system time

The end

Launcher Data 

Begin job on node18 at 2009-05-01 16:15:54
IDJOB=1773941
IDBENCH=70826
IDSOLVER=607
FILE ID=node18/1773941-1241187354
PBS_JOBID= 9224619
Free space on /tmp= 66148 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-1773941-1241187354/watcher-1773941-1241187354 -o /tmp/evaluation-result-1773941-1241187354/solver-1773941-1241187354 -C 10000 -W 12000 -M 1800  HOME/precosat HOME/instance-1773941-1241187354.cnf

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

MD5SUM BENCH= 2802e980ef7a0af021d80df126a2e28c
RANDOM SEED=274019752

node18.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		: 3000.280
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		: 3000.280
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:       1156824 kB
Buffers:         70880 kB
Cached:         720320 kB
SwapCached:       4876 kB
Active:         117356 kB
Inactive:       681708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1156824 kB
SwapTotal:     4192956 kB
SwapFree:      4181908 kB
Dirty:            4768 kB
Writeback:           0 kB
Mapped:          13988 kB
Slab:            86096 kB
Committed_AS:   717308 kB
PageTables:       1372 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= 66148 MiB
End job on node18 at 2009-05-01 16:16:19