Trace number 294463

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, and are wall clock time (not CPU 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 535SAT 214.07 214.213

General information on the benchmark

Namerandom/OnTreshold/7SAT/v50/
unif-k7-r89-v50-c4450-S1755163742-08.SAT.shuffled.cnf
MD5SUMd3edeae19215a6960895e5b557b1cbc9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.206968
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54450

Solver Data (download as text)

214.03/214.21	s SATISFIABLE
214.03/214.21	v -1 2 3 4 -5 6 -7 8 -9 -10 11 -12 -13 -14 15 -16 -17 -18 -19 20 21 22 -23 24
214.03/214.21	v -25 26 27 -28 -29 30 -31 32 33 -34 35 -36 -37 38 39 -40 41 42 43 -44 45 46 47
214.03/214.21	v 48 -49 50 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node3/watcher-294463-1171789254 -o ROOT/results/node3/solver-294463-1171789254 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/294463-1171789254/picosat /tmp/evaluation/294463-1171789254/instance-294463-1171789254.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 1.01 1.01 1.00 3/77 22395
/proc/meminfo: memFree=792872/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=568 CPUtime=0
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 69 0 0 0 0 0 0 0 18 0 1 0 198880281 581632 54 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 142 54 40 102 0 37 0

[startup+0.107075 s]
/proc/loadavg: 1.01 1.01 1.00 3/77 22395
/proc/meminfo: memFree=792872/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=836 CPUtime=0.1
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 146 0 0 0 6 4 0 0 18 0 1 0 198880281 856064 131 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134583827 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 209 131 42 102 0 104 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 836

[startup+0.515109 s]
/proc/loadavg: 1.01 1.01 1.00 3/77 22395
/proc/meminfo: memFree=792872/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=972 CPUtime=0.5
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 181 0 0 0 46 4 0 0 21 0 1 0 198880281 995328 164 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134597654 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 243 164 48 102 0 138 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 972

[startup+1.33518 s]
/proc/loadavg: 1.01 1.01 1.00 2/78 22396
/proc/meminfo: memFree=792288/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=972 CPUtime=1.32
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 200 0 0 0 128 4 0 0 25 0 1 0 198880281 995328 183 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525828 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 243 183 48 102 0 138 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 972

[startup+2.97131 s]
/proc/loadavg: 1.01 1.01 1.00 2/78 22396
/proc/meminfo: memFree=792096/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=1100 CPUtime=2.96
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 219 0 0 0 292 4 0 0 25 0 1 0 198880281 1126400 202 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 275 202 48 102 0 170 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1100

[startup+6.24759 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 22396
/proc/meminfo: memFree=791904/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=1272 CPUtime=6.23
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 252 0 0 0 619 4 0 0 25 0 1 0 198880281 1302528 235 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525778 0 0 4096 0 0 0 0 17 0 0 0
/proc/22395/statm: 318 235 48 102 0 213 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 1272

[startup+12.7091 s]
/proc/loadavg: 1.00 1.01 1.00 2/84 22462
/proc/meminfo: memFree=790384/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=1392 CPUtime=12.67
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 290 0 0 0 1263 4 0 0 25 0 1 0 198880281 1425408 273 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134597652 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 348 273 48 102 0 243 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 1392

[startup+25.5252 s]
/proc/loadavg: 1.00 1.01 1.00 2/84 22480
/proc/meminfo: memFree=790128/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=1620 CPUtime=25.47
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 339 0 0 0 2543 4 0 0 25 0 1 0 198880281 1658880 322 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525760 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 405 322 48 102 0 300 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 1620

[startup+51.1463 s]
/proc/loadavg: 1.00 1.01 1.00 2/84 22510
/proc/meminfo: memFree=789808/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=1852 CPUtime=51.07
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 400 0 0 0 5103 4 0 0 25 0 1 0 198880281 1896448 383 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 463 383 48 102 0 358 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 1852

[startup+102.384 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790560/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2208 CPUtime=102.26
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 473 0 0 0 10221 5 0 0 25 0 1 0 198880281 2260992 456 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525814 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 552 456 48 102 0 447 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 2208

[startup+162.416 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790432/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2380 CPUtime=162.27
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 540 0 0 0 16222 5 0 0 25 0 1 0 198880281 2437120 523 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525814 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 595 523 48 102 0 490 0
Current children cumulated CPU time (s) 162.27
Current children cumulated vsize (KiB) 2380

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

[startup+183.656 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790368/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2492 CPUtime=183.51
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 557 0 0 0 18346 5 0 0 25 0 1 0 198880281 2551808 540 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 623 540 48 102 0 518 0
Current children cumulated CPU time (s) 183.51
Current children cumulated vsize (KiB) 2492

[startup+196.772 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790368/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2492 CPUtime=196.62
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 557 0 0 0 19657 5 0 0 25 0 1 0 198880281 2551808 540 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 623 540 48 102 0 518 0
Current children cumulated CPU time (s) 196.62
Current children cumulated vsize (KiB) 2492

[startup+203.325 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790304/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2588 CPUtime=203.17
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 581 0 0 0 20312 5 0 0 25 0 1 0 198880281 2650112 564 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525828 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 647 564 48 102 0 542 0
Current children cumulated CPU time (s) 203.17
Current children cumulated vsize (KiB) 2588

[startup+209.882 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790240/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2560 CPUtime=209.73
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 581 0 0 0 20968 5 0 0 25 0 1 0 198880281 2621440 564 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 640 564 48 102 0 535 0
Current children cumulated CPU time (s) 209.73
Current children cumulated vsize (KiB) 2560

[startup+211.518 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790240/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2560 CPUtime=211.36
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 581 0 0 0 21131 5 0 0 25 0 1 0 198880281 2621440 564 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 640 564 48 102 0 535 0
Current children cumulated CPU time (s) 211.36
Current children cumulated vsize (KiB) 2560

[startup+213.164 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790240/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2560 CPUtime=213.01
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 581 0 0 0 21296 5 0 0 25 0 1 0 198880281 2621440 564 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134520108 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 640 564 48 102 0 535 0
Current children cumulated CPU time (s) 213.01
Current children cumulated vsize (KiB) 2560

[startup+213.98 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790240/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2560 CPUtime=213.82
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 581 0 0 0 21377 5 0 0 25 0 1 0 198880281 2621440 564 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 640 564 48 102 0 535 0
Current children cumulated CPU time (s) 213.82
Current children cumulated vsize (KiB) 2560

[startup+214.184 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 22594
/proc/meminfo: memFree=790240/2055920 swapFree=4192812/4192956
[pid=22395] ppid=22393 vsize=2560 CPUtime=214.03
/proc/22395/stat : 22395 (picosat) R 22393 22395 21901 0 -1 4194304 581 0 0 0 21398 5 0 0 25 0 1 0 198880281 2621440 564 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/22395/statm: 640 564 48 102 0 535 0
Current children cumulated CPU time (s) 214.03
Current children cumulated vsize (KiB) 2560

Child status: 10
Real time (s): 214.213
CPU time (s): 214.07
CPU user time (s): 214.01
CPU system time (s): 0.05999
CPU usage (%): 99.9333
Max. virtual memory (cumulated for all children) (KiB): 2592

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 214.01
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= 587
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= 6
involuntary context switches= 733

runsolver used 0.227965 second user time and 0.508922 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Sun Feb 18 09:00:54 UTC 2007

IDJOB= 294463
IDBENCH= 19889
IDSOLVER= 106
FILE ID= node3/294463-1171789254

PBS_JOBID= 3839318

Free space on /tmp= 66553 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v50/unif-k7-r89-v50-c4450-S1755163742-08.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/294463-1171789254/picosat /tmp/evaluation/294463-1171789254/instance-294463-1171789254.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-294463-1171789254 -o ROOT/results/node3/solver-294463-1171789254 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/294463-1171789254/picosat /tmp/evaluation/294463-1171789254/instance-294463-1171789254.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  d3edeae19215a6960895e5b557b1cbc9

RANDOM SEED= 886466280

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.241
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		: 3000.241
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:        793280 kB
Buffers:         57868 kB
Cached:        1072564 kB
SwapCached:          0 kB
Active:         537296 kB
Inactive:       647736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        793280 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             608 kB
Writeback:           0 kB
Mapped:          73472 kB
Slab:            63216 kB
Committed_AS:   938320 kB
PageTables:       1656 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= 66553 MiB

End job on node3 on Sun Feb 18 09:04:29 UTC 2007