Trace number 1553354

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
SAT07 reference solver: picosat 535UNSAT 34.7057 34.7182

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.59684
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

34.68/34.71	s UNSATISFIABLE

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-1553354-1238713967/watcher-1553354-1238713967 -o /tmp/evaluation-result-1553354-1238713967/solver-1553354-1238713967 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1553354-1238713967.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: 1.53 1.20 1.07 2/71 1229
/proc/meminfo: memFree=1077696/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=568 CPUtime=0
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 72 0 0 0 0 0 0 0 20 0 1 0 1144059808 581632 58 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 142 58 40 102 0 37 0

[startup+0.0982491 s]
/proc/loadavg: 1.53 1.20 1.07 2/71 1229
/proc/meminfo: memFree=1077696/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=1360 CPUtime=0.09
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 240 0 0 0 4 5 0 0 20 0 1 0 1144059808 1392640 226 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 340 226 40 102 0 235 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1360

[startup+0.101248 s]
/proc/loadavg: 1.53 1.20 1.07 2/71 1229
/proc/meminfo: memFree=1077696/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=1360 CPUtime=0.09
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 241 0 0 0 4 5 0 0 20 0 1 0 1144059808 1392640 227 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 340 227 40 102 0 235 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1360

[startup+0.301284 s]
/proc/loadavg: 1.53 1.20 1.07 2/71 1229
/proc/meminfo: memFree=1077696/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=2540 CPUtime=0.29
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 504 0 0 0 17 12 0 0 21 0 1 0 1144059808 2600960 483 1992294400 134512640 134931368 4294956224 18446744073709551615 134544814 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 635 483 42 102 0 530 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2540

[startup+0.701361 s]
/proc/loadavg: 1.53 1.20 1.07 2/71 1229
/proc/meminfo: memFree=1077696/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=2804 CPUtime=0.69
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 564 0 0 0 57 12 0 0 25 0 1 0 1144059808 2871296 543 1992294400 134512640 134931368 4294956224 18446744073709551615 134525554 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 701 543 42 102 0 596 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2804

[startup+1.50151 s]
/proc/loadavg: 1.53 1.20 1.07 2/72 1230
/proc/meminfo: memFree=1075256/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=3472 CPUtime=1.49
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 725 0 0 0 137 12 0 0 25 0 1 0 1144059808 3555328 702 1992294400 134512640 134931368 4294956224 18446744073709551615 134525675 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 868 702 48 102 0 763 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3472

[startup+3.10182 s]
/proc/loadavg: 1.53 1.20 1.07 2/72 1230
/proc/meminfo: memFree=1074744/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=3868 CPUtime=3.09
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 837 0 0 0 297 12 0 0 25 0 1 0 1144059808 3960832 814 1992294400 134512640 134931368 4294956224 18446744073709551615 134529775 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 967 814 48 102 0 862 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3868

[startup+6.30143 s]
/proc/loadavg: 1.49 1.20 1.06 2/72 1230
/proc/meminfo: memFree=1074168/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=4256 CPUtime=6.29
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 917 0 0 0 617 12 0 0 25 0 1 0 1144059808 4358144 894 1992294400 134512640 134931368 4294956224 18446744073709551615 134544811 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 1064 894 48 102 0 959 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4256

[startup+12.7017 s]
/proc/loadavg: 1.45 1.19 1.06 2/72 1230
/proc/meminfo: memFree=1073344/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=4908 CPUtime=12.68
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 1097 0 0 0 1256 12 0 0 25 0 1 0 1144059808 5025792 1074 1992294400 134512640 134931368 4294956224 18446744073709551615 134597664 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 1227 1074 48 102 0 1122 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 4908

[startup+25.5011 s]
/proc/loadavg: 1.35 1.18 1.06 2/72 1230
/proc/meminfo: memFree=1072576/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=5684 CPUtime=25.49
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 1288 0 0 0 2536 13 0 0 25 0 1 0 1144059808 5820416 1265 1992294400 134512640 134931368 4294956224 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 1421 1265 48 102 0 1316 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 5684

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

[startup+28.7017 s]
/proc/loadavg: 1.35 1.18 1.06 2/72 1230
/proc/meminfo: memFree=1072576/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=5684 CPUtime=28.68
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 1288 0 0 0 2855 13 0 0 25 0 1 0 1144059808 5820416 1265 1992294400 134512640 134931368 4294956224 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 1421 1265 48 102 0 1316 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 5684

[startup+31.9063 s]
/proc/loadavg: 1.32 1.18 1.06 2/72 1230
/proc/meminfo: memFree=1072576/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=5684 CPUtime=31.89
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 1289 0 0 0 3176 13 0 0 25 0 1 0 1144059808 5820416 1266 1992294400 134512640 134931368 4294956224 18446744073709551615 134522836 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 1421 1266 48 102 0 1316 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 5684

[startup+33.5016 s]
/proc/loadavg: 1.32 1.18 1.06 2/72 1230
/proc/meminfo: memFree=1072576/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=5684 CPUtime=33.48
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 1289 0 0 0 3335 13 0 0 25 0 1 0 1144059808 5820416 1266 1992294400 134512640 134931368 4294956224 18446744073709551615 134530341 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 1421 1266 48 102 0 1316 0
Current children cumulated CPU time (s) 33.48
Current children cumulated vsize (KiB) 5684

[startup+34.3018 s]
/proc/loadavg: 1.29 1.17 1.06 2/72 1230
/proc/meminfo: memFree=1072576/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=5684 CPUtime=34.28
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 1289 0 0 0 3415 13 0 0 25 0 1 0 1144059808 5820416 1266 1992294400 134512640 134931368 4294956224 18446744073709551615 134529446 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 1421 1266 48 102 0 1316 0
Current children cumulated CPU time (s) 34.28
Current children cumulated vsize (KiB) 5684

[startup+34.7019 s]
/proc/loadavg: 1.29 1.17 1.06 2/72 1230
/proc/meminfo: memFree=1072576/2055920 swapFree=4170332/4192956
[pid=1229] ppid=1227 vsize=5684 CPUtime=34.68
/proc/1229/stat : 1229 (picosat) R 1227 1229 1061 0 -1 4194304 1289 0 0 0 3455 13 0 0 25 0 1 0 1144059808 5820416 1266 1992294400 134512640 134931368 4294956224 18446744073709551615 134579031 0 0 4096 0 0 0 0 17 1 0 0
/proc/1229/statm: 1421 1266 48 102 0 1316 0
Current children cumulated CPU time (s) 34.68
Current children cumulated vsize (KiB) 5684

Child status: 20
Real time (s): 34.7182
CPU time (s): 34.7057
CPU user time (s): 34.5717
CPU system time (s): 0.133979
CPU usage (%): 99.9641
Max. virtual memory (cumulated for all children) (KiB): 5684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 34.5717
system time used= 0.133979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1291
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= 1
involuntary context switches= 55

runsolver used 0.035994 second user time and 0.097985 second system time

The end

Launcher Data 

Begin job on node38 at 2009-04-03 01:12:47
IDJOB=1553354
IDBENCH=70759
IDSOLVER=563
FILE ID=node38/1553354-1238713967
PBS_JOBID= 9085307
Free space on /tmp= 65528 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553354-1238713967/watcher-1553354-1238713967 -o /tmp/evaluation-result-1553354-1238713967/solver-1553354-1238713967 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1553354-1238713967.cnf            

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

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=402990237

node38.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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1078112 kB
Buffers:        101416 kB
Cached:         769236 kB
SwapCached:      11172 kB
Active:         257964 kB
Inactive:       625364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1078112 kB
SwapTotal:     4192956 kB
SwapFree:      4170332 kB
Dirty:            1152 kB
Writeback:           0 kB
Mapped:          18376 kB
Slab:            79632 kB
Committed_AS:  3363460 kB
PageTables:       1988 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= 65528 MiB
End job on node38 at 2009-04-03 01:13:22