Trace number 1556793

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
picosat 913UNSAT 27.3398 27.35

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 PicoSAT SAT Solver Version 913
0.00/0.00	c Copyright (c) 2006 - 2009 Armin Biere JKU Linz
0.00/0.00	c gcc -Wall -Wextra -m32 -static -DNDEBUG -O3 -fomit-frame-pointer -finline-limit=1000000
0.00/0.00	c
0.00/0.00	c parsing HOME/instance-1556793-1238750568.cnf
0.00/0.00	c parsed header 'p cnf 68827 224473'
0.49/0.58	c initialized 68827 variables
0.49/0.58	c found 224473 non trivial clauses
0.49/0.58	c
0.49/0.58	c random number generator seed 0
0.49/0.58	c 
0.49/0.58	c  seconds     variables   original    learned     agility
0.49/0.58	c         level        used      conflicts    limit          MB
0.49/0.58	c 
0.49/0.58	c s   0.6   0.0 68300   1.4 132e3    68     0     0   0.0   9.7 
2.89/2.93	c 
2.89/2.93	c initial reduction limit 66360 clauses
2.89/2.93	c 
2.89/2.93	c +   2.9   6.6 68300  99.5 132e3   168   100 72996  38.3  10.7 
2.89/2.93	c N   2.9   6.6 68300  99.5 132e3   168   100 72996  38.2  10.7 
7.09/7.11	c +   7.1   5.9 68300  99.9 132e3   318   249 80295  40.5  10.7 
11.39/11.44	c N  11.4   5.8 68300  99.9 132e3   470   400 80295  43.8  10.8 
13.49/13.58	c +  13.6   5.6 68300  99.9 132e3   543   471 88324  18.8  10.8 
14.59/14.61	c s  14.6   5.5 68106  99.9 131e3   589   193 88324  37.3  11.0 
16.09/16.15	c N  16.1   5.5 68106  99.9 131e3   664   268 88324  45.8  11.0 
21.18/21.27	c s  21.3   5.3 68063  99.9 131e3   845   311 88324  38.5  11.1 
22.48/22.58	c +  22.6   5.3 68063  99.9 131e3   913   378 97156  38.6  11.1 
23.28/23.34	c N  23.3   5.3 68063  99.9 131e3   937   402 97156  43.7  11.1 
23.98/24.05	c s  24.0   5.2 67962  99.9 131e3   973   396 97156  42.1  11.1 
25.68/25.78	c s  25.8   5.1 67955  99.9 131e3  1037   203 97156  38.8  11.0 
27.28/27.32	c 0  27.3   5.0  2491 100.0 131e3  1097   247 97156  19.9  12.8 
27.28/27.34	c 
27.28/27.34	c  seconds     variables   original    learned     agility
27.28/27.34	c         level        used      conflicts    limit          MB
27.28/27.34	c 
27.28/27.34	s UNSATISFIABLE
27.28/27.34	c
27.28/27.34	c 9 iterations
27.28/27.34	c 0 restarts
27.28/27.34	c 79 failed literals
27.28/27.34	c 1097 conflicts
27.28/27.34	c 994 decisions
27.28/27.34	c 66336 fixed variables
27.28/27.34	c 205125 learned literals
27.28/27.34	c 34.7% deleted literals
27.28/27.34	c 37908595 propagations
27.28/27.34	c 100.0% variables used
27.28/27.34	c 27.3 seconds in library
27.28/27.34	c 1.4 megaprops/second
27.28/27.34	c 5 simplifications
27.28/27.34	c 0 reductions
27.28/27.34	c 0.4 MB recycled
27.28/27.34	c 12.8 MB maximally allocated
27.28/27.34	c 27.3 seconds total run time

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-1556793-1238750568/watcher-1556793-1238750568 -o /tmp/evaluation-result-1556793-1238750568/solver-1556793-1238750568 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1556793-1238750568.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: 0.99 0.98 1.00 3/72 1721
/proc/meminfo: memFree=1802856/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=4952 CPUtime=0
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 615 0 0 0 0 0 0 0 18 0 1 0 1147717949 5070848 601 1992294400 134512640 135137933 4294956224 18446744073709551615 134532161 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 1238 606 53 152 0 1084 0

[startup+0.0571011 s]
/proc/loadavg: 0.99 0.98 1.00 3/72 1721
/proc/meminfo: memFree=1802856/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=7092 CPUtime=0.04
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 1610 0 0 0 4 0 0 0 18 0 1 0 1147717949 7262208 1595 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 1773 1595 56 152 0 1619 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 7092

[startup+0.102107 s]
/proc/loadavg: 0.99 0.98 1.00 3/72 1721
/proc/meminfo: memFree=1802856/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=9192 CPUtime=0.09
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 2080 0 0 0 9 0 0 0 18 0 1 0 1147717949 9412608 2065 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 2298 2065 56 152 0 2144 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9192

[startup+0.302144 s]
/proc/loadavg: 0.99 0.98 1.00 3/72 1721
/proc/meminfo: memFree=1802856/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=12212 CPUtime=0.29
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 2756 0 0 0 28 1 0 0 19 0 1 0 1147717949 12505088 2741 1992294400 134512640 135137933 4294956224 18446744073709551615 134560605 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3053 2741 61 152 0 2899 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12212

[startup+0.701217 s]
/proc/loadavg: 0.99 0.98 1.00 3/72 1721
/proc/meminfo: memFree=1802856/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=12728 CPUtime=0.69
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 2851 0 0 0 68 1 0 0 22 0 1 0 1147717949 13033472 2836 1992294400 134512640 135137933 4294956224 18446744073709551615 134552174 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3182 2836 69 152 0 3028 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12728

[startup+1.50136 s]
/proc/loadavg: 0.99 0.98 1.00 2/73 1722
/proc/meminfo: memFree=1791456/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=13080 CPUtime=1.49
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 2922 0 0 0 148 1 0 0 25 0 1 0 1147717949 13393920 2907 1992294400 134512640 135137933 4294956224 18446744073709551615 134548866 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3270 2907 69 152 0 3116 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13080

[startup+3.10165 s]
/proc/loadavg: 0.99 0.98 1.00 2/73 1722
/proc/meminfo: memFree=1791328/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=13080 CPUtime=3.09
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 2922 0 0 0 308 1 0 0 25 0 1 0 1147717949 13393920 2907 1992294400 134512640 135137933 4294956224 18446744073709551615 134548954 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3270 2907 69 152 0 3116 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13080

[startup+6.30124 s]
/proc/loadavg: 0.99 0.98 1.00 2/73 1722
/proc/meminfo: memFree=1791136/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=13212 CPUtime=6.29
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 2935 0 0 0 628 1 0 0 25 0 1 0 1147717949 13529088 2920 1992294400 134512640 135137933 4294956224 18446744073709551615 134551406 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3303 2920 69 152 0 3149 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 13212

[startup+12.7014 s]
/proc/loadavg: 0.99 0.98 1.00 2/73 1722
/proc/meminfo: memFree=1791024/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=13344 CPUtime=12.69
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 2962 0 0 0 1268 1 0 0 25 0 1 0 1147717949 13664256 2947 1992294400 134512640 135137933 4294956224 18446744073709551615 134527844 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3336 2947 69 152 0 3182 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13344

[startup+25.5027 s]
/proc/loadavg: 0.99 0.98 1.00 2/73 1722
/proc/meminfo: memFree=1790768/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=13736 CPUtime=25.48
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 3038 0 0 0 2547 1 0 0 25 0 1 0 1147717949 14065664 3023 1992294400 134512640 135137933 4294956224 18446744073709551615 134552918 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3434 3023 69 152 0 3280 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 13736

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

[startup+26.3019 s]
/proc/loadavg: 0.99 0.98 1.00 2/73 1722
/proc/meminfo: memFree=1790768/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=13736 CPUtime=26.29
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 3038 0 0 0 2628 1 0 0 25 0 1 0 1147717949 14065664 3023 1992294400 134512640 135137933 4294956224 18446744073709551615 134552904 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3434 3023 69 152 0 3280 0
Current children cumulated CPU time (s) 26.29
Current children cumulated vsize (KiB) 13736

[startup+27.102 s]
/proc/loadavg: 0.99 0.98 1.00 2/73 1722
/proc/meminfo: memFree=1790768/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=13736 CPUtime=27.08
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 3038 0 0 0 2707 1 0 0 25 0 1 0 1147717949 14065664 3023 1992294400 134512640 135137933 4294956224 18446744073709551615 134551430 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3434 3023 69 152 0 3280 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 13736

[startup+27.3011 s]
/proc/loadavg: 0.99 0.98 1.00 2/73 1722
/proc/meminfo: memFree=1790768/2055920 swapFree=4174696/4192956
[pid=1721] ppid=1719 vsize=14788 CPUtime=27.28
/proc/1721/stat : 1721 (picosat) R 1719 1721 1368 0 -1 4194304 3309 0 0 0 2727 1 0 0 25 0 1 0 1147717949 15142912 3294 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/1721/statm: 3697 3294 69 152 0 3543 0
Current children cumulated CPU time (s) 27.28
Current children cumulated vsize (KiB) 14788

Child status: 20
Real time (s): 27.35
CPU time (s): 27.3398
CPU user time (s): 27.3208
CPU system time (s): 0.018997
CPU usage (%): 99.9628
Max. virtual memory (cumulated for all children) (KiB): 14788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.3208
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3438
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= 48

runsolver used 0.021996 second user time and 0.089986 second system time

The end

Launcher Data 

Begin job on node67 at 2009-04-03 11:22:48
IDJOB=1556793
IDBENCH=70826
IDSOLVER=506
FILE ID=node67/1556793-1238750568
PBS_JOBID= 9085419
Free space on /tmp= 66556 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/APPLICATIONS/crypto/md5gen/gus-md5-05.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1556793-1238750568/watcher-1556793-1238750568 -o /tmp/evaluation-result-1556793-1238750568/solver-1556793-1238750568 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1556793-1238750568.cnf

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

MD5SUM BENCH= 2802e980ef7a0af021d80df126a2e28c
RANDOM SEED=2131892804

node67.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		: 3000.265
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		: 3000.265
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:       1803272 kB
Buffers:         63456 kB
Cached:         104900 kB
SwapCached:       9872 kB
Active:          32848 kB
Inactive:       146864 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1803272 kB
SwapTotal:     4192956 kB
SwapFree:      4174696 kB
Dirty:            4764 kB
Writeback:           0 kB
Mapped:          16928 kB
Slab:            58044 kB
Committed_AS:  3458336 kB
PageTables:       2052 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= 66556 MiB
End job on node67 at 2009-04-03 11:23:16