Trace number 267808

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
VALCSP 3.1? (MO) 61.7716 61.8418

General information on the benchmark

Namequeens/
queens-150.xml
MD5SUMb0d89abe262117e726883b3c610dd5a5
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.06284
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables150
Number of constraints11175
Maximum constraint arity2
Maximum domain size150
Number of constraints which are defined in extension0
Number of constraints which are defined in intension11175
Global constraints used (with number of constraints)

Solver Data (download as text)



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/node9/watcher-267808-1168977729 -o ROOT/results/node9/solver-267808-1168977729 -C 1800 -M 900 /tmp/evaluation/267808-1168977729/VALCSP /tmp/evaluation/267808-1168977729/unknown.xml 

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: 0.00 0.00 0.00 4/87 24785
/proc/meminfo: memFree=1494048/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=2128 CPUtime=0
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 268 0 0 0 0 0 0 0 19 0 1 0 246168106 2179072 246 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 9098875 0 0 4096 0 0 0 0 17 1 0 0
/proc/24784/statm: 532 250 64 8 0 204 0

[startup+0.10831 s]
/proc/loadavg: 0.00 0.00 0.00 4/87 24785
/proc/meminfo: memFree=1494048/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=3976 CPUtime=0.1
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 675 0 0 0 10 0 0 0 20 0 1 0 246168106 4071424 653 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529346 0 0 4096 0 0 0 0 17 1 0 0
/proc/24784/statm: 994 653 65 8 0 666 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3976

[startup+0.51636 s]
/proc/loadavg: 0.00 0.00 0.00 4/87 24785
/proc/meminfo: memFree=1494048/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=10576 CPUtime=0.5
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 2324 0 0 0 49 1 0 0 24 0 1 0 246168106 10829824 2302 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 0 0 0
/proc/24784/statm: 2644 2302 65 8 0 2316 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 10576

[startup+1.33845 s]
/proc/loadavg: 0.00 0.00 0.00 3/92 24813
/proc/meminfo: memFree=1462264/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=23380 CPUtime=1.31
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 5534 0 0 0 129 2 0 0 25 0 1 0 246168106 23941120 5512 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 0 0 0
/proc/24784/statm: 5845 5512 65 8 0 5517 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 23380

[startup+2.98564 s]
/proc/loadavg: 0.00 0.00 0.00 3/92 24813
/proc/meminfo: memFree=1422008/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=49648 CPUtime=2.95
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 12089 0 0 0 289 6 0 0 25 0 1 0 246168106 50839552 12067 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528627 0 0 4096 0 0 0 0 17 0 0 0
/proc/24784/statm: 12412 12067 65 8 0 12084 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 49648

[startup+6.264 s]
/proc/loadavg: 0.16 0.03 0.01 2/81 24832
/proc/meminfo: memFree=1404408/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=99808 CPUtime=6.21
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 24657 0 0 0 608 13 0 0 25 0 1 0 246168106 102203392 24635 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/24784/statm: 24952 24635 65 8 0 24624 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 99808

[startup+12.7227 s]
/proc/loadavg: 0.23 0.05 0.02 2/81 24832
/proc/meminfo: memFree=1303952/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=196096 CPUtime=12.67
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 48711 0 0 0 1244 23 0 0 25 0 1 0 246168106 200802304 48689 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528723 0 0 4096 0 0 0 0 17 1 0 0
/proc/24784/statm: 49024 48689 65 8 0 48696 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 196096

[startup+25.5242 s]
/proc/loadavg: 0.40 0.09 0.03 2/81 24832
/proc/meminfo: memFree=1120912/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=384896 CPUtime=25.47
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 95938 0 0 0 2505 42 0 0 25 0 1 0 246168106 394133504 95916 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 1 0 0
/proc/24784/statm: 96224 95916 65 8 0 95896 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 384896

[startup+51.1431 s]
/proc/loadavg: 0.60 0.17 0.05 2/81 24840
/proc/meminfo: memFree=735056/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=765268 CPUtime=51.06
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 191050 0 0 0 5020 86 0 0 25 0 1 0 246168106 783634432 191028 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528704 0 0 4096 0 0 0 0 17 1 0 0
/proc/24784/statm: 191317 191028 65 8 0 190989 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 765268



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+61.6943 s]
/proc/loadavg: 0.66 0.19 0.06 2/81 24840
/proc/meminfo: memFree=571600/2055920 swapFree=4191880/4192956
[pid=24784] ppid=24782 vsize=922444 CPUtime=61.62
/proc/24784/stat : 24784 (VALCSP) R 24782 24784 24547 0 -1 4194304 230343 0 0 0 6057 105 0 0 25 0 1 0 246168106 944582656 230321 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/24784/statm: 230611 230321 65 8 0 230283 0
Current children cumulated CPU time (s) 61.62
Current children cumulated vsize (KiB) 922444

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 61.8418
CPU time (s): 61.7716
CPU user time (s): 60.5788
CPU system time (s): 1.19282
CPU usage (%): 99.8865
Max. virtual memory (cumulated for all children) (KiB): 922444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 60.5788
system time used= 1.19282
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230343
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= 5
involuntary context switches= 1374

runsolver used 0.069989 s user time and 0.161975 s system time

The end



Launcher Data (download as text)




Begin job on node9 on Tue Jan 16 20:02:09 UTC 2007


IDJOB= 267808
IDBENCH= 3081
IDSOLVER= 90
FILE ID= node9/267808-1168977729

PBS_JOBID= 3565934

Free space on /tmp= 66563 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-150.xml
COMMAND LINE= /tmp/evaluation/267808-1168977729/VALCSP /tmp/evaluation/267808-1168977729/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-267808-1168977729 -o ROOT/results/node9/solver-267808-1168977729 -C 1800 -M 900  /tmp/evaluation/267808-1168977729/VALCSP /tmp/evaluation/267808-1168977729/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  b0d89abe262117e726883b3c610dd5a5

RANDOM SEED= 640520816

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		: 3000.231
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:       1494528 kB
Buffers:         62424 kB
Cached:         369440 kB
SwapCached:        276 kB
Active:         222768 kB
Inactive:       256780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1494528 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            1528 kB
Writeback:           0 kB
Mapped:          59852 kB
Slab:            66540 kB
Committed_AS:  7385308 kB
PageTables:       2368 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= 66563 MiB



End job on node9 on Tue Jan 16 20:03:26 UTC 2007