Trace number 1725506

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 6.45802 6.46088

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
MD5SUM35f2aba974a0579245ba9b669f0484ae
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.063989
Satisfiable
(Un)Satisfiability was proved
Number of variables6480
Number of clauses12722
Sum of the clauses size50722
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 280
Number of clauses of size 30
Number of clauses of size 412640
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-1725506-1240705181.cnf
0.00/0.00	c parsed header 'p cnf 6480 12722'
0.00/0.02	c initialized 6480 variables
0.00/0.02	c found 12722 non trivial clauses
0.00/0.02	c
0.00/0.02	c random number generator seed 0
0.00/0.02	c 
0.00/0.02	c  seconds     variables   original    learned     agility
0.00/0.02	c         level        used      conflicts    limit          MB
0.00/0.02	c 
0.00/0.02	c s   0.0   0.0  6478   0.1 12640     0     1     0   0.0   0.8 
0.00/0.04	c 
0.00/0.04	c initial reduction limit 6320 clauses
0.00/0.04	c 
0.00/0.04	c +   0.0 183e1  6478   7.3 12640   100   100  6952   0.7   0.9 
0.00/0.04	c R   0.0 183e1  6478   7.3 12640   100   100  6952   0.7   0.9 
0.00/0.05	c +   0.1 181e1  6478   9.6 12640   250   248  7647   2.3   0.9 
0.00/0.06	c R   0.1 183e1  6478  11.2 12640   403   398  7647   3.3   0.9 
0.00/0.06	c +   0.1 182e1  6478  11.3 12640   475   469  8411   4.9   0.9 
0.00/0.06	c +   0.1 177e1  6478  11.5 12640   812   802  9252  11.1   0.9 
0.00/0.07	c R   0.1 174e1  6478  11.5 12640  1206  1192  9252  16.2   0.9 
0.00/0.07	c +   0.1 173e1  6478  11.5 12640  1317  1299 10177  16.8   0.9 
0.00/0.10	c +   0.1 192e1  6478  19.6 12640  2074  2041 11194   5.4   1.0 
0.10/0.12	c +   0.1 198e1  6478  26.2 12640  3209  3166 12313  15.5   1.0 
0.10/0.12	c R   0.1 198e1  6478  26.2 12640  3212  3169 12313  15.6   1.0 
0.10/0.16	c +   0.2 189e1  6478  31.7 12640  4911  4835 13544  13.6   1.1 
0.19/0.22	c +   0.2 198e1  6478  41.4 12640  7464  7377 14898  15.1   1.3 
0.19/0.22	c R   0.2 197e1  6478  41.4 12640  8022  7935 14898  21.7   1.3 
0.29/0.32	c +   0.3 203e1  6478  51.0 12640 11293 11187 16387  18.2   1.5 
0.39/0.45	c +   0.5 203e1  6478  59.2 12640 17036  8658 18025   9.7   1.6 
0.39/0.48	c N   0.5 202e1  6478  59.2 12640 19245 10865 18025  25.0   1.7 
0.59/0.63	c +   0.6 197e1  6478  63.9 12640 25650 17227 19827  22.9   2.0 
0.89/0.95	c +   1.0 190e1  6478  68.3 12640 38571 10170 21809  15.5   1.7 
0.99/1.07	c N   1.1 189e1  6478  69.5 12640 44893 16484 21809  26.8   2.3 
0.99/1.07	c 
0.99/1.07	c  seconds     variables   original    learned     agility
0.99/1.07	c         level        used      conflicts    limit          MB
0.99/1.07	c 
1.29/1.38	c +   1.4 186e1  6478  70.5 12640 57952 18570 23989   9.9   2.5 
1.99/2.04	c +   2.0 188e1  6478  81.3 12640 87023 23422 26387  26.6   2.4 
2.29/2.35	c N   2.4 187e1  6478  81.9 12640 102e3 24602 26387  23.8   2.9 
2.89/2.99	c +   3.0 180e1  6478  85.5 12640 130e3 25230 29025   8.2   2.6 
4.39/4.49	c +   4.5 173e1  6478 100.0 12640 196e3 25447 31927  26.5   2.5 
5.29/5.36	c N   5.4 171e1  6478 100.0 12640 230e3 22070 31927  28.2   3.0 
6.29/6.36	c s   6.4 165e1  6477 100.0 12636 270e3 16720 31927  27.7   2.2 
6.29/6.36	c N   6.4 165e1  6477 100.0 12636 270e3 16821 31927  24.5   2.2 
6.29/6.37	c N   6.4 165e1  6477 100.0 12636 270e3 17122 31927  25.1   2.2 
6.29/6.38	c N   6.4 165e1  6477 100.0 12636 271e3 17923 31927  26.5   2.3 
6.39/6.42	c N   6.4 165e1  6476 100.0 12636 273e3 19648 31927  27.6   2.4 
6.39/6.43	c N   6.4 165e1  6476 100.0 12636 273e3 19947 31927  27.2   2.4 
6.39/6.44	c N   6.4 165e1  6475 100.0 12636 274e3 20706 31927  27.7   2.4 
6.39/6.45	c N   6.5 165e1  6474 100.0 12636 274e3 20948 31927  27.2   2.4 
6.39/6.45	c 0   6.5 165e1  6454 100.0 12636 274e3 21002 31927  27.4   2.4 
6.39/6.46	c 
6.39/6.46	c  seconds     variables   original    learned     agility
6.39/6.46	c         level        used      conflicts    limit          MB
6.39/6.46	c 
6.39/6.46	s UNSATISFIABLE
6.39/6.46	c
6.39/6.46	c 6 iterations
6.39/6.46	c 527 restarts
6.39/6.46	c 0 failed literals
6.39/6.46	c 274393 conflicts
6.39/6.46	c 3461838 decisions
6.39/6.46	c 26 fixed variables
6.39/6.46	c 3175990 learned literals
6.39/6.46	c 3.5% deleted literals
6.39/6.46	c 6583885 propagations
6.39/6.46	c 100.0% variables used
6.39/6.46	c 6.5 seconds in library
6.39/6.46	c 1.0 megaprops/second
6.39/6.46	c 2 simplifications
6.39/6.46	c 17 reductions
6.39/6.46	c 16.0 MB recycled
6.39/6.46	c 3.6 MB maximally allocated
6.39/6.46	c 6.5 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-1725506-1240705181/watcher-1725506-1240705181 -o /tmp/evaluation-result-1725506-1240705181/solver-1725506-1240705181 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1725506-1240705181.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: 0.87 0.97 0.99 3/64 21803
/proc/meminfo: memFree=1694016/2055920 swapFree=4180816/4192956
[pid=21803] ppid=21801 vsize=1232 CPUtime=0
/proc/21803/stat : 21803 (picosat) R 21801 21803 21682 0 -1 4194304 220 0 0 0 0 0 0 0 18 0 1 0 98545977 1261568 205 1992294400 134512640 135137933 4294956240 18446744073709551615 134689438 0 0 4096 0 0 0 0 17 1 0 0
/proc/21803/statm: 308 205 56 152 0 154 0

[startup+0.106106 s]
/proc/loadavg: 0.87 0.97 0.99 3/64 21803
/proc/meminfo: memFree=1694016/2055920 swapFree=4180816/4192956
[pid=21803] ppid=21801 vsize=1784 CPUtime=0.1
/proc/21803/stat : 21803 (picosat) R 21801 21803 21682 0 -1 4194304 365 0 0 0 10 0 0 0 18 0 1 0 98545977 1826816 350 1992294400 134512640 135137933 4294956240 18446744073709551615 134569869 0 0 4096 0 0 0 0 17 1 0 0
/proc/21803/statm: 446 350 69 152 0 292 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1784

[startup+0.202115 s]
/proc/loadavg: 0.87 0.97 0.99 3/64 21803
/proc/meminfo: memFree=1694016/2055920 swapFree=4180816/4192956
[pid=21803] ppid=21801 vsize=2048 CPUtime=0.19
/proc/21803/stat : 21803 (picosat) R 21801 21803 21682 0 -1 4194304 425 0 0 0 19 0 0 0 18 0 1 0 98545977 2097152 410 1992294400 134512640 135137933 4294956240 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/21803/statm: 512 410 69 152 0 358 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2048

[startup+0.302126 s]
/proc/loadavg: 0.87 0.97 0.99 3/64 21803
/proc/meminfo: memFree=1694016/2055920 swapFree=4180816/4192956
[pid=21803] ppid=21801 vsize=2324 CPUtime=0.29
/proc/21803/stat : 21803 (picosat) R 21801 21803 21682 0 -1 4194304 486 0 0 0 29 0 0 0 19 0 1 0 98545977 2379776 471 1992294400 134512640 135137933 4294956240 18446744073709551615 134569936 0 0 4096 0 0 0 0 17 1 0 0
/proc/21803/statm: 581 471 69 152 0 427 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2324

[startup+0.701176 s]
/proc/loadavg: 0.87 0.97 0.99 3/64 21803
/proc/meminfo: memFree=1694016/2055920 swapFree=4180816/4192956
[pid=21803] ppid=21801 vsize=3144 CPUtime=0.69
/proc/21803/stat : 21803 (picosat) R 21801 21803 21682 0 -1 4194304 675 0 0 0 69 0 0 0 22 0 1 0 98545977 3219456 660 1992294400 134512640 135137933 4294956240 18446744073709551615 134528032 0 0 4096 0 0 0 0 17 1 0 0
/proc/21803/statm: 786 660 69 152 0 632 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3144

[startup+1.50125 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 21804
/proc/meminfo: memFree=1691320/2055920 swapFree=4180816/4192956
[pid=21803] ppid=21801 vsize=3804 CPUtime=1.49
/proc/21803/stat : 21803 (picosat) R 21801 21803 21682 0 -1 4194304 855 0 0 0 149 0 0 0 25 0 1 0 98545977 3895296 840 1992294400 134512640 135137933 4294956240 18446744073709551615 134569847 0 0 4096 0 0 0 0 17 1 0 0
/proc/21803/statm: 951 840 69 152 0 797 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3804

[startup+3.10141 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 21804
/proc/meminfo: memFree=1690744/2055920 swapFree=4180816/4192956
[pid=21803] ppid=21801 vsize=4200 CPUtime=3.09
/proc/21803/stat : 21803 (picosat) R 21801 21803 21682 0 -1 4194304 957 0 0 0 309 0 0 0 25 0 1 0 98545977 4300800 942 1992294400 134512640 135137933 4294956240 18446744073709551615 134525574 0 0 4096 0 0 0 0 17 1 0 0
/proc/21803/statm: 1050 942 69 152 0 896 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4200

[startup+6.30173 s]
/proc/loadavg: 0.89 0.97 0.99 2/65 21804
/proc/meminfo: memFree=1689912/2055920 swapFree=4180816/4192956
[pid=21803] ppid=21801 vsize=4728 CPUtime=6.29
/proc/21803/stat : 21803 (picosat) R 21801 21803 21682 0 -1 4194304 1093 0 0 0 629 0 0 0 25 0 1 0 98545977 4841472 1078 1992294400 134512640 135137933 4294956240 18446744073709551615 134553941 0 0 4096 0 0 0 0 17 1 0 0
/proc/21803/statm: 1182 1078 69 152 0 1028 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4728

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

[startup+6.40175 s]
/proc/loadavg: 0.89 0.97 0.99 2/65 21804
/proc/meminfo: memFree=1689912/2055920 swapFree=4180816/4192956
[pid=21803] ppid=21801 vsize=4728 CPUtime=6.39
/proc/21803/stat : 21803 (picosat) R 21801 21803 21682 0 -1 4194304 1093 0 0 0 639 0 0 0 25 0 1 0 98545977 4841472 1078 1992294400 134512640 135137933 4294956240 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 1 0 0
/proc/21803/statm: 1182 1078 69 152 0 1028 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 4728

Child status: 20
Real time (s): 6.46088
CPU time (s): 6.45802
CPU user time (s): 6.44902
CPU system time (s): 0.008998
CPU usage (%): 99.9556
Max. virtual memory (cumulated for all children) (KiB): 4728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.44902
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1095
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= 13

runsolver used 0.006998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node45 at 2009-04-26 02:19:41
IDJOB=1725506
IDBENCH=24589
IDSOLVER=506
FILE ID=node45/1725506-1240705181
PBS_JOBID= 9186810
Free space on /tmp= 66296 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725506-1240705181/watcher-1725506-1240705181 -o /tmp/evaluation-result-1725506-1240705181/solver-1725506-1240705181 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1725506-1240705181.cnf

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

MD5SUM BENCH= 35f2aba974a0579245ba9b669f0484ae
RANDOM SEED=679244387

node45.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		: 3000.231
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		: 3000.231
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:       1694432 kB
Buffers:         38756 kB
Cached:         261736 kB
SwapCached:       6324 kB
Active:         137400 kB
Inactive:       171800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1694432 kB
SwapTotal:     4192956 kB
SwapFree:      4180816 kB
Dirty:            1396 kB
Writeback:           0 kB
Mapped:          13960 kB
Slab:            38360 kB
Committed_AS:   390104 kB
PageTables:       1376 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= 66292 MiB
End job on node45 at 2009-04-26 02:19:48