Trace number 205496

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
rjw-solver 2006-12-09? (MO) 30.62 30.6874

General information on the benchmark

Namehanoi/
hanoi-7_ext.xml
MD5SUMc08c67f756fce77fe7d340c44cf2c4b9
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.00685
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables126
Number of constraints125
Maximum constraint arity2
Maximum domain size2187
Number of constraints which are defined in extension125
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c conversion script
c 
c

Verifier Data (download as text)

ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node25/watcher-205496-1168167695 -o ROOT/results/node25/solver-205496-1168167695 -C 1800 -M 900 /tmp/evaluation/205496-1168167695/solve /tmp/evaluation/205496-1168167695/unknown 1800 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.73 1.50 1.71 4/81 32272
/proc/meminfo: memFree=1396800/2055920 swapFree=4170848/4192956
[pid=32271] ppid=32269 vsize=5352 CPUtime=0
/proc/32271/stat : 32271 (solve) R 32269 32271 32051 0 -1 4194304 283 174 0 0 0 0 0 0 18 0 1 0 165171291 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781796511 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/32271/statm: 1338 229 192 169 0 49 0
[pid=32274] ppid=32271 vsize=5352 CPUtime=0
/proc/32274/stat : 32274 (solve) R 32271 32271 32051 0 -1 4194368 8 0 0 0 0 0 0 0 18 0 1 0 165171292 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781638721 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/32274/statm: 1338 229 192 169 0 49 0

[startup+0.102791 s]
/proc/loadavg: 1.73 1.50 1.71 4/81 32272
/proc/meminfo: memFree=1396800/2055920 swapFree=4170848/4192956
[pid=32271] ppid=32269 vsize=5352 CPUtime=0
/proc/32271/stat : 32271 (solve) S 32269 32271 32051 0 -1 4194304 315 174 0 0 0 0 0 0 18 0 1 0 165171291 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/32271/statm: 1338 229 192 169 0 49 0
[pid=32274] ppid=32271 vsize=5692 CPUtime=0.08
/proc/32274/stat : 32274 (xlisp) R 32271 32271 32051 0 -1 4194304 902 0 0 0 8 0 0 0 20 0 1 0 165171292 5828608 861 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 4294960144 0 0 4096 130 0 0 0 17 1 0 0
/proc/32274/statm: 1423 861 230 197 0 663 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 11044

[startup+0.513857 s]
/proc/loadavg: 1.73 1.50 1.71 4/81 32272
/proc/meminfo: memFree=1396800/2055920 swapFree=4170848/4192956
[pid=32271] ppid=32269 vsize=5352 CPUtime=0
/proc/32271/stat : 32271 (solve) S 32269 32271 32051 0 -1 4194304 315 174 0 0 0 0 0 0 18 0 1 0 165171291 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/32271/statm: 1338 229 192 169 0 49 0
[pid=32274] ppid=32271 vsize=32056 CPUtime=0.5
/proc/32274/stat : 32274 (xlisp) R 32271 32271 32051 0 -1 4194304 7522 0 0 0 46 4 0 0 23 0 1 0 165171292 32825344 7481 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134684803 0 0 4096 130 0 0 0 17 1 0 0
/proc/32274/statm: 8014 7481 241 197 0 7254 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 37408

[startup+1.337 s]
/proc/loadavg: 1.73 1.50 1.71 2/83 32275
/proc/meminfo: memFree=1310576/2055920 swapFree=4170848/4192956
[pid=32271] ppid=32269 vsize=5352 CPUtime=0
/proc/32271/stat : 32271 (solve) S 32269 32271 32051 0 -1 4194304 315 174 0 0 0 0 0 0 18 0 1 0 165171291 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/32271/statm: 1338 229 192 169 0 49 0
[pid=32274] ppid=32271 vsize=107420 CPUtime=1.32
/proc/32274/stat : 32274 (xlisp) R 32271 32271 32051 0 -1 4194304 26370 0 0 0 120 12 0 0 25 0 1 0 165171292 109998080 26329 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134865572 0 0 4096 130 0 0 0 17 1 0 0
/proc/32274/statm: 26855 26329 241 197 0 26095 0
[pid=32275] ppid=32271 vsize=2600 CPUtime=0
/proc/32275/stat : 32275 (sed) S 32271 32271 32051 0 -1 4194304 148 0 0 0 0 0 0 0 17 0 1 0 165171292 2662400 120 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 215781965906 0 0 4096 0 18446744071563648864 0 0 17 0 0 0
/proc/32275/statm: 650 120 96 11 0 54 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 115372

[startup+2.97327 s]
/proc/loadavg: 1.67 1.49 1.71 2/83 32283
/proc/meminfo: memFree=1235496/2055920 swapFree=4170848/4192956
[pid=32271] ppid=32269 vsize=5352 CPUtime=0
/proc/32271/stat : 32271 (solve) S 32269 32271 32051 0 -1 4194304 315 174 0 0 0 0 0 0 18 0 1 0 165171291 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/32271/statm: 1338 229 192 169 0 49 0
[pid=32274] ppid=32271 vsize=200840 CPUtime=2.95
/proc/32274/stat : 32274 (xlisp) R 32271 32271 32051 0 -1 4194304 49725 0 0 0 272 23 0 0 25 0 1 0 165171292 205660160 49684 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134684591 0 0 4096 130 0 0 0 17 1 0 0
/proc/32274/statm: 50210 49684 241 197 0 49450 0
[pid=32275] ppid=32271 vsize=2600 CPUtime=0
/proc/32275/stat : 32275 (sed) S 32271 32271 32051 0 -1 4194304 148 0 0 0 0 0 0 0 17 0 1 0 165171292 2662400 120 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 215781965906 0 0 4096 0 18446744071563648864 0 0 17 0 0 0
/proc/32275/statm: 650 120 96 11 0 54 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 208792

[startup+6.25883 s]
/proc/loadavg: 1.67 1.49 1.71 2/83 32283
/proc/meminfo: memFree=1067176/2055920 swapFree=4170848/4192956
[pid=32271] ppid=32269 vsize=5352 CPUtime=0
/proc/32271/stat : 32271 (solve) S 32269 32271 32051 0 -1 4194304 315 174 0 0 0 0 0 0 18 0 1 0 165171291 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/32271/statm: 1338 229 192 169 0 49 0
[pid=32274] ppid=32271 vsize=350312 CPUtime=6.24
/proc/32274/stat : 32274 (xlisp) R 32271 32271 32051 0 -1 4194304 87093 0 0 0 584 40 0 0 25 0 1 0 165171292 358719488 87052 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134684803 0 0 4096 130 0 0 0 17 1 0 0
/proc/32274/statm: 87578 87052 241 197 0 86818 0
[pid=32275] ppid=32271 vsize=2600 CPUtime=0
/proc/32275/stat : 32275 (sed) S 32271 32271 32051 0 -1 4194304 148 0 0 0 0 0 0 0 17 0 1 0 165171292 2662400 120 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 215781965906 0 0 4096 0 18446744071563648864 0 0 17 0 0 0
/proc/32275/statm: 650 120 96 11 0 54 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 358264

[startup+12.7199 s]
/proc/loadavg: 1.57 1.47 1.70 2/83 32284
/proc/meminfo: memFree=865064/2055920 swapFree=4170848/4192956
[pid=32271] ppid=32269 vsize=5352 CPUtime=0
/proc/32271/stat : 32271 (solve) S 32269 32271 32051 0 -1 4194304 315 174 0 0 0 0 0 0 18 0 1 0 165171291 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/32271/statm: 1338 229 192 169 0 49 0
[pid=32274] ppid=32271 vsize=555836 CPUtime=12.69
/proc/32274/stat : 32274 (xlisp) R 32271 32271 32051 0 -1 4194304 138474 0 0 0 1205 64 0 0 25 0 1 0 165171292 569176064 138433 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 4294960144 0 0 4096 130 0 0 0 17 1 0 0
/proc/32274/statm: 138959 138433 241 197 0 138199 0
[pid=32275] ppid=32271 vsize=2600 CPUtime=0
/proc/32275/stat : 32275 (sed) S 32271 32271 32051 0 -1 4194304 148 0 0 0 0 0 0 0 17 0 1 0 165171292 2662400 120 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 215781965906 0 0 4096 0 18446744071563648864 0 0 17 0 0 0
/proc/32275/statm: 650 120 96 11 0 54 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 563788

[startup+25.5431 s]
/proc/loadavg: 1.48 1.46 1.69 2/83 32285
/proc/meminfo: memFree=584304/2055920 swapFree=4170848/4192956
[pid=32271] ppid=32269 vsize=5352 CPUtime=0
/proc/32271/stat : 32271 (solve) S 32269 32271 32051 0 -1 4194304 315 174 0 0 0 0 0 0 18 0 1 0 165171291 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/32271/statm: 1338 229 192 169 0 49 0
[pid=32274] ppid=32271 vsize=836096 CPUtime=25.5
/proc/32274/stat : 32274 (xlisp) R 32271 32271 32051 0 -1 4194304 208539 0 0 0 2454 96 0 0 25 0 1 0 165171292 856162304 208498 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134684862 0 0 4096 130 0 0 0 17 0 0 0
/proc/32274/statm: 209024 208498 241 197 0 208264 0
[pid=32275] ppid=32271 vsize=2600 CPUtime=0
/proc/32275/stat : 32275 (sed) S 32271 32271 32051 0 -1 4194304 148 0 0 0 0 0 0 0 17 0 1 0 165171292 2662400 120 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 215781965906 0 0 4096 0 18446744071563648864 0 0 17 0 0 0
/proc/32275/statm: 650 120 96 11 0 54 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 844048



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+30.676 s]
/proc/loadavg: 1.44 1.45 1.69 2/80 32289
/proc/meminfo: memFree=477648/2055920 swapFree=4170848/4192956
[pid=32271] ppid=32269 vsize=5352 CPUtime=0
/proc/32271/stat : 32271 (solve) S 32269 32271 32051 0 -1 4194304 315 174 0 0 0 0 0 0 18 0 1 0 165171291 5480448 229 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/32271/statm: 1338 229 192 169 0 49 0
[pid=32274] ppid=32271 vsize=929516 CPUtime=30.62
/proc/32274/stat : 32274 (xlisp) R 32271 32271 32051 0 -1 4194304 231894 0 0 0 2956 106 0 0 25 0 1 0 165171292 951824384 231853 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134627523 0 0 4096 130 0 0 0 17 1 0 0
/proc/32274/statm: 232379 231853 241 197 0 231619 0
[pid=32275] ppid=32271 vsize=2600 CPUtime=0
/proc/32275/stat : 32275 (sed) S 32271 32271 32051 0 -1 4194304 148 0 0 0 0 0 0 0 17 0 1 0 165171292 2662400 120 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 215781965906 0 0 4096 0 18446744071563648864 0 0 17 0 0 0
/proc/32275/statm: 650 120 96 11 0 54 0
Current children cumulated CPU time (s) 30.62
Current children cumulated vsize (KiB) 937468

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

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 32271 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=2999 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=2999
CPU time returned by wait4() is 0.005998
while last known CPU time is 30.62

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

Real time (s): 30.6874
CPU time (s): 30.62
CPU user time (s): 29.56
CPU system time (s): 1.06
CPU usage (%): 99.7803
Max. virtual memory (cumulated for all children) (KiB): 937468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.002999
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 637
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= 21
involuntary context switches= 4

runsolver used 0.029995 s user time and 0.089986 s system time

The end

Launcher Data (download as text)

Begin job on node25 on Sun Jan  7 11:01:41 UTC 2007


IDJOB= 205496
IDBENCH= 4134
FILE ID= node25/205496-1168167695

PBS_JOBID= 3478794

Free space on /tmp= 66554 MiB

BENCH NAME= HOME/pub/bench/CPAI06/hanoi/hanoi-7_ext.xml
COMMAND LINE= /tmp/evaluation/205496-1168167695/solve /tmp/evaluation/205496-1168167695/unknown 1800
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node25/convwatcher-205496-1168167695 -o ROOT/results/node25/conversion-205496-1168167695 -C 600 -M 900 /tmp/evaluation/205496-1168167695/conversion /tmp/evaluation/205496-1168167695/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-205496-1168167695 -o ROOT/results/node25/solver-205496-1168167695 -C 1800 -M 900  /tmp/evaluation/205496-1168167695/solve /tmp/evaluation/205496-1168167695/unknown 1800

META MD5SUM SOLVER= 91bbaf997669a18b91ccd2f734d8d9ca
MD5SUM BENCH=  c08c67f756fce77fe7d340c44cf2c4b9

RANDOM SEED= 590346803

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.279
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		: 3000.279
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:        670632 kB
Buffers:         48592 kB
Cached:         504912 kB
SwapCached:       1240 kB
Active:         813360 kB
Inactive:       493040 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        670632 kB
SwapTotal:     4192956 kB
SwapFree:      4170848 kB
Dirty:           11452 kB
Writeback:           0 kB
Mapped:         771900 kB
Slab:            62072 kB
Committed_AS:  4059748 kB
PageTables:       3820 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= 66547 MiB



End job on node25 on Sun Jan  7 11:03:49 UTC 2007