Trace number 315809

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
SATzilla RANDOM? (MO) 161.59 161.816

General information on the benchmark

Nameindustrial/palacios/
medium/emptyroom-4-h21-unsat.cnf
MD5SUM175ec3119584300988ad366c4a04cccc
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark272.026
Satisfiable
(Un)Satisfiability was proved
Number of variables69148
Number of clauses208728
Sum of the clauses size487544
Maximum clause length28
Minimum clause length1
Number of clauses of size 1256
Number of clauses of size 2139492
Number of clauses of size 368730
Number of clauses of size 4102
Number of clauses of size 513
Number of clauses of size over 5135

Solver Data (download as text)

31.43/31.68	c run March_dl for 5 seconds ... 
31.43/31.68	c Bin: Executing march_dl
31.43/31.68	c child exit by a signal
31.43/31.68	c march_dl returned code 137.
31.43/31.68	c run saps (UBCSAT implementation) for 2 seconds ... 
31.43/31.68	c Bin: Executing ubcsat2006
31.43/31.68	c child exited successfully
31.43/31.68	c ubcsat2006 returned code 0.
31.43/31.68	c satzilla computing base features
31.43/31.68	c satzilla doing unit-prop probe
31.43/31.68	c satzilla doing local search probe
31.43/31.68	c satzilla doing lobjois search-space size estimate
31.43/31.68	c satzilla's ranking:
31.43/31.68	c 1) march_dl: -17906.178157
31.43/31.68	c 2) minisat20+P: 347.220561
31.43/31.68	c 3) kcnfs+P: 999.000000
31.43/31.68	c 4) march_dl+P: 999.000000
31.43/31.68	c 5) vallst+P: 999.000000
31.43/31.68	c 6) zchaff_rand+P: 999.000000
31.43/31.68	c 7) vallst: 999.000000
31.43/31.68	c 8) zchaff_rand: 999.000000
31.43/31.68	c 9) minisat20: 999.000000
31.43/31.68	c 10) kcnfs: 1655.264185
31.43/31.68	c satzilla running march_dl ...

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node58/watcher-315809-1172659473 -o ROOT/results/node58/solver-315809-1172659473 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/315809-1172659473/SATzilla2007_R /tmp/evaluation/315809-1172659473/instance-315809-1172659473.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): 2400 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: 0.91 0.95 0.98 3/64 12518
/proc/meminfo: memFree=1748480/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=1440 CPUtime=0
/proc/12518/stat : 12518 (SATzilla2007_R) D 12516 12518 11233 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 285904039 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135221597 0 0 4096 0 18446744071563608240 0 0 17 1 0 0
/proc/12518/statm: 360 110 95 260 0 84 0

[startup+0.0814461 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 12518
/proc/meminfo: memFree=1748480/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=1440 CPUtime=0
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 285904039 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/12518/statm: 360 110 95 260 0 84 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1440

[startup+0.102447 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 12518
/proc/meminfo: memFree=1748480/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=1440 CPUtime=0
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 285904039 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/12518/statm: 360 110 95 260 0 84 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1440

[startup+0.302467 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 12518
/proc/meminfo: memFree=1748480/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=1440 CPUtime=0
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 285904039 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/12518/statm: 360 110 95 260 0 84 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1440

[startup+0.701512 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 12518
/proc/meminfo: memFree=1748480/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=1440 CPUtime=0
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 285904039 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/12518/statm: 360 110 95 260 0 84 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1440

[startup+1.5016 s]
/proc/loadavg: 0.91 0.95 0.98 2/66 12520
/proc/meminfo: memFree=1731632/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=1440 CPUtime=0
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 285904039 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/12518/statm: 360 110 95 260 0 84 0
[pid=12520] ppid=12518 vsize=25044 CPUtime=1.47
/proc/12520/stat : 12520 (march_dl) R 12518 12518 11233 0 -1 4194304 14713 0 0 0 140 7 0 0 25 0 1 0 285904041 25645056 5383 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134644061 0 0 8392704 0 0 0 0 17 1 0 0
/proc/12520/statm: 6261 5383 61 118 0 6140 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 26484

[startup+3.10178 s]
/proc/loadavg: 0.92 0.95 0.98 2/66 12520
/proc/meminfo: memFree=1700400/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=1440 CPUtime=0
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 285904039 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/12518/statm: 360 110 95 260 0 84 0
[pid=12520] ppid=12518 vsize=63772 CPUtime=3.07
/proc/12520/stat : 12520 (march_dl) R 12518 12518 11233 0 -1 4194304 25370 0 0 0 296 11 0 0 25 0 1 0 285904041 65302528 14549 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134557723 0 0 8392704 0 0 0 0 17 1 0 0
/proc/12520/statm: 15943 14549 65 118 0 15822 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 65212

[startup+6.30113 s]
/proc/loadavg: 0.92 0.95 0.98 2/66 12521
/proc/meminfo: memFree=1735664/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=1440 CPUtime=5
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 135 29716 0 0 0 0 486 14 17 0 1 0 285904039 1474560 111 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/12518/statm: 360 111 96 260 0 84 0
[pid=12521] ppid=12518 vsize=22588 CPUtime=1.14
/proc/12521/stat : 12521 (ubcsat2006) R 12518 12518 11233 0 -1 4194304 3600 0 13 0 113 1 0 0 25 0 1 0 285904542 23130112 3596 18446744073709551615 134512640 134777720 4294956496 18446744073709551615 4294960144 0 0 8392704 0 0 0 0 17 1 0 0
/proc/12521/statm: 5647 3596 156 64 0 5228 0
Current children cumulated CPU time (s) 6.14
Current children cumulated vsize (KiB) 24028

[startup+12.7018 s]
/proc/loadavg: 0.93 0.96 0.98 2/65 12521
/proc/meminfo: memFree=1726392/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=23276 CPUtime=12.54
/proc/12518/stat : 12518 (SATzilla2007_R) R 12516 12518 11233 0 -1 4194304 5318 33329 0 13 524 4 710 16 25 0 1 0 285904039 23834624 5287 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216365 0 0 4096 0 0 0 0 17 1 0 0
/proc/12518/statm: 5819 5287 121 260 0 5543 0
Current children cumulated CPU time (s) 12.54
Current children cumulated vsize (KiB) 23276

[startup+25.5012 s]
/proc/loadavg: 0.94 0.96 0.98 2/65 12521
/proc/meminfo: memFree=1725624/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=23276 CPUtime=25.34
/proc/12518/stat : 12518 (SATzilla2007_R) R 12516 12518 11233 0 -1 4194304 5536 33329 0 13 1801 7 710 16 25 0 1 0 285904039 23834624 5505 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216365 0 0 4096 0 0 0 0 17 1 0 0
/proc/12518/statm: 5819 5505 121 260 0 5543 0
Current children cumulated CPU time (s) 25.34
Current children cumulated vsize (KiB) 23276

[startup+51.1021 s]
/proc/loadavg: 0.96 0.96 0.98 2/66 12522
/proc/meminfo: memFree=1564400/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=14560 CPUtime=31.52
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 13429 33329 0 13 2414 12 710 16 25 0 1 0 285904039 14909440 3397 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/12518/statm: 3640 3397 157 260 0 3364 0
[pid=12522] ppid=12518 vsize=193308 CPUtime=19.4
/proc/12522/stat : 12522 (march_dl) R 12518 12518 11233 0 -1 4194304 54205 0 0 0 1913 27 0 0 25 0 1 0 285907207 197947392 43384 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134557699 0 0 8392704 0 0 0 0 17 1 0 0
/proc/12522/statm: 48327 43384 65 118 0 48206 0
Current children cumulated CPU time (s) 50.92
Current children cumulated vsize (KiB) 207868

[startup+102.306 s]
/proc/loadavg: 0.98 0.96 0.98 2/66 12522
/proc/meminfo: memFree=1015280/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=14560 CPUtime=31.52
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 13429 33329 0 13 2414 12 710 16 25 0 1 0 285904039 14909440 3397 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/12518/statm: 3640 3397 157 260 0 3364 0
[pid=12522] ppid=12518 vsize=753044 CPUtime=70.58
/proc/12522/stat : 12522 (march_dl) R 12518 12518 11233 0 -1 4194304 204907 0 0 0 6970 88 0 0 25 0 1 0 285907207 771117056 179452 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134656045 0 0 8392704 0 0 0 0 17 1 0 0
/proc/12522/statm: 188261 179452 65 118 0 188140 0
Current children cumulated CPU time (s) 102.1
Current children cumulated vsize (KiB) 767604



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+161.802 s]
/proc/loadavg: 0.99 0.97 0.98 2/66 12522
/proc/meminfo: memFree=76976/2055920 swapFree=4184000/4192956
[pid=12518] ppid=12516 vsize=14560 CPUtime=31.52
/proc/12518/stat : 12518 (SATzilla2007_R) S 12516 12518 11233 0 -1 4194304 13429 33329 0 13 2414 12 710 16 25 0 1 0 285904039 14909440 3397 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/12518/statm: 3640 3397 157 260 0 3364 0
[pid=12522] ppid=12518 vsize=1894360 CPUtime=130.07
/proc/12522/stat : 12522 (march_dl) R 12518 12518 11233 0 -1 4195840 435038 0 0 0 12820 187 0 0 25 0 1 0 285907207 1939824640 409340 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134542979 0 0 8392704 0 0 0 0 17 1 0 0
/proc/12522/statm: 473590 409340 65 118 0 473469 0
Current children cumulated CPU time (s) 161.59
Current children cumulated vsize (KiB) 1908920

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 12518 and gives childrusage.ru_utime.tv_sec=31 childrusage.ru_utime.tv_usec=249249 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=295955
CPU time returned by wait4() is 31.5452
while last known CPU time is 161.59

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 161.816
CPU time (s): 161.59
CPU user time (s): 159.44
CPU system time (s): 2.15
CPU usage (%): 99.8602
Max. virtual memory (cumulated for all children) (KiB): 1908920

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.2492
system time used= 0.295955
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 46758
page faults= 13
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 54
involuntary context switches= 59

runsolver used 0.164974 second user time and 0.378942 second system time

The end

Launcher Data (download as text)

Begin job on node58 on Wed Feb 28 10:44:34 UTC 2007

IDJOB= 315809
IDBENCH= 20425
IDSOLVER= 134
FILE ID= node58/315809-1172659473

PBS_JOBID= 3981183

Free space on /tmp= 66504 MiB

SOLVER NAME= SATzilla RANDOM
BENCH NAME= HOME/pub/bench/SAT07/industrial/palacios/medium/emptyroom-4-h21-unsat.cnf
COMMAND LINE= /tmp/evaluation/315809-1172659473/SATzilla2007_R /tmp/evaluation/315809-1172659473/instance-315809-1172659473.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node58/watcher-315809-1172659473 -o ROOT/results/node58/solver-315809-1172659473 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/315809-1172659473/SATzilla2007_R /tmp/evaluation/315809-1172659473/instance-315809-1172659473.cnf            

META MD5SUM SOLVER= 44dcaa7dbf032757655ae5e30ee65a10
MD5SUM BENCH=  175ec3119584300988ad366c4a04cccc

RANDOM SEED= 556469354

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node58.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		: 3000.234
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		: 3000.234
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:       1748888 kB
Buffers:          8448 kB
Cached:         247552 kB
SwapCached:       2740 kB
Active:          48732 kB
Inactive:       217080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1748888 kB
SwapTotal:     4192956 kB
SwapFree:      4184000 kB
Dirty:           11788 kB
Writeback:           0 kB
Mapped:          15680 kB
Slab:            27328 kB
Committed_AS:   685232 kB
PageTables:       1380 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= 64904 MiB

End job on node58 on Wed Feb 28 10:48:32 UTC 2007