Trace number 268188

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) 706.707 709.516

General information on the benchmark

NamequeensKnights/
queensKnights-80-5-add.xml
MD5SUM7a51bbe4282e558cd323d92b7034649e
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark135.891
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables85
Number of constraints3170
Maximum constraint arity2
Maximum domain size6400
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3170
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/node56/watcher-268188-1168978083 -o ROOT/results/node56/solver-268188-1168978083 -C 1800 -M 900 /tmp/evaluation/268188-1168978083/VALCSP /tmp/evaluation/268188-1168978083/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: 1.01 0.47 0.18 5/73 15912
/proc/meminfo: memFree=1444000/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=18540 CPUtime=0
/proc/15911/stat : 15911 (runsolver) R 15909 15911 15332 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 246206738 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 253307186471 0 0 4096 24578 0 0 0 17 1 0 0
/proc/15911/statm: 4635 279 244 17 0 2626 0

[startup+0.13129 s]
/proc/loadavg: 1.01 0.47 0.18 5/73 15912
/proc/meminfo: memFree=1444000/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=4732 CPUtime=0.12
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 925 0 0 0 12 0 0 0 21 0 1 0 246206738 4845568 903 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528591 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 1183 903 64 8 0 855 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 4732

[startup+0.539331 s]
/proc/loadavg: 1.01 0.47 0.18 5/73 15912
/proc/meminfo: memFree=1444000/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=12784 CPUtime=0.52
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 2913 0 0 0 51 1 0 0 25 0 1 0 246206738 13090816 2891 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529346 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 3196 2891 64 8 0 2868 0
Current children cumulated CPU time (s) 0.52
Current children cumulated vsize (KiB) 12784

[startup+1.36041 s]
/proc/loadavg: 1.09 0.50 0.19 3/73 15912
/proc/meminfo: memFree=1420576/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=28624 CPUtime=1.33
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 6899 0 0 0 130 3 0 0 25 0 1 0 246206738 29310976 6877 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529381 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 7156 6877 64 8 0 6828 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 28624

[startup+2.99757 s]
/proc/loadavg: 1.09 0.50 0.19 3/73 15912
/proc/meminfo: memFree=1398688/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=60592 CPUtime=2.97
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 14907 0 0 0 288 9 0 0 25 0 1 0 246206738 62046208 14885 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528600 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 15148 14885 64 8 0 14820 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 60592

[startup+6.28289 s]
/proc/loadavg: 1.16 0.52 0.20 3/73 15912
/proc/meminfo: memFree=1198048/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=246844 CPUtime=6.22
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 61444 0 0 0 596 26 0 0 25 0 1 0 246206738 252768256 61422 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528607 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 61711 61422 64 8 0 61383 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 246844

[startup+12.7375 s]
/proc/loadavg: 1.23 0.55 0.21 3/73 15912
/proc/meminfo: memFree=1198048/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=246844 CPUtime=12.62
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 61444 0 0 0 1236 26 0 0 25 0 1 0 246206738 252768256 61422 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528766 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 61711 61422 64 8 0 61383 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 246844

[startup+25.5488 s]
/proc/loadavg: 1.35 0.59 0.22 3/73 15912
/proc/meminfo: memFree=1198048/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=246844 CPUtime=25.34
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 61444 0 0 0 2508 26 0 0 25 0 1 0 246206738 252768256 61422 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 61711 61422 64 8 0 61383 0
Current children cumulated CPU time (s) 25.34
Current children cumulated vsize (KiB) 246844

[startup+51.1691 s]
/proc/loadavg: 1.60 0.73 0.28 3/73 15912
/proc/meminfo: memFree=1037664/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=406932 CPUtime=50.87
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 101466 0 0 0 5044 43 0 0 25 0 1 0 246206738 416698368 101444 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 101733 101444 64 8 0 101405 0
Current children cumulated CPU time (s) 50.87
Current children cumulated vsize (KiB) 406932

[startup+102.396 s]
/proc/loadavg: 1.83 0.92 0.37 3/73 15912
/proc/meminfo: memFree=1037664/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=406932 CPUtime=101.9
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 101466 0 0 0 10147 43 0 0 25 0 1 0 246206738 416698368 101444 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 101733 101444 64 8 0 101405 0
Current children cumulated CPU time (s) 101.9
Current children cumulated vsize (KiB) 406932

[startup+162.438 s]
/proc/loadavg: 1.93 1.11 0.47 3/73 15912
/proc/meminfo: memFree=1037664/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=406932 CPUtime=161.71
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 101466 0 0 0 16128 43 0 0 25 0 1 0 246206738 416698368 101444 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 101733 101444 64 8 0 101405 0
Current children cumulated CPU time (s) 161.71
Current children cumulated vsize (KiB) 406932

[startup+222.476 s]
/proc/loadavg: 1.97 1.27 0.56 3/73 15912
/proc/meminfo: memFree=1037728/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=406932 CPUtime=221.52
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 101466 0 0 0 22109 43 0 0 25 0 1 0 246206738 416698368 101444 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 101733 101444 64 8 0 101405 0
Current children cumulated CPU time (s) 221.52
Current children cumulated vsize (KiB) 406932

[startup+282.515 s]
/proc/loadavg: 1.99 1.40 0.65 3/73 15912
/proc/meminfo: memFree=877280/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=566880 CPUtime=281.33
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 141485 0 0 0 28073 60 0 0 25 0 1 0 246206738 580485120 141463 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 141720 141463 64 8 0 141392 0
Current children cumulated CPU time (s) 281.33
Current children cumulated vsize (KiB) 566880

[startup+342.553 s]
/proc/loadavg: 1.99 1.51 0.73 3/73 15912
/proc/meminfo: memFree=877280/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=566880 CPUtime=341.14
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 141485 0 0 0 34054 60 0 0 25 0 1 0 246206738 580485120 141463 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 141720 141463 64 8 0 141392 0
Current children cumulated CPU time (s) 341.14
Current children cumulated vsize (KiB) 566880

[startup+402.599 s]
/proc/loadavg: 1.99 1.60 0.81 3/73 15912
/proc/meminfo: memFree=877280/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=566880 CPUtime=400.95
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 141485 0 0 0 40035 60 0 0 25 0 1 0 246206738 580485120 141463 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 141720 141463 64 8 0 141392 0
Current children cumulated CPU time (s) 400.95
Current children cumulated vsize (KiB) 566880

[startup+462.641 s]
/proc/loadavg: 1.99 1.67 0.88 3/73 15912
/proc/meminfo: memFree=877280/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=566880 CPUtime=460.77
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 141485 0 0 0 46016 61 0 0 25 0 1 0 246206738 580485120 141463 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 141720 141463 64 8 0 141392 0
Current children cumulated CPU time (s) 460.77
Current children cumulated vsize (KiB) 566880

[startup+522.683 s]
/proc/loadavg: 1.99 1.72 0.94 3/73 15912
/proc/meminfo: memFree=556448/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=887068 CPUtime=520.58
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 221525 0 0 0 51964 94 0 0 25 0 1 0 246206738 908357632 221503 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 221767 221503 64 8 0 221439 0
Current children cumulated CPU time (s) 520.58
Current children cumulated vsize (KiB) 887068

[startup+582.724 s]
/proc/loadavg: 1.99 1.77 1.01 3/73 15912
/proc/meminfo: memFree=556512/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=887068 CPUtime=580.4
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 221525 0 0 0 57946 94 0 0 25 0 1 0 246206738 908357632 221503 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 221767 221503 64 8 0 221439 0
Current children cumulated CPU time (s) 580.4
Current children cumulated vsize (KiB) 887068

[startup+642.769 s]
/proc/loadavg: 1.99 1.81 1.07 3/73 15912
/proc/meminfo: memFree=556448/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=887068 CPUtime=640.21
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 221525 0 0 0 63927 94 0 0 25 0 1 0 246206738 908357632 221503 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 221767 221503 64 8 0 221439 0
Current children cumulated CPU time (s) 640.21
Current children cumulated vsize (KiB) 887068

[startup+702.808 s]
/proc/loadavg: 1.99 1.84 1.12 3/73 15912
/proc/meminfo: memFree=556512/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=887068 CPUtime=700.01
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 221525 0 0 0 69907 94 0 0 25 0 1 0 246206738 908357632 221503 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 221767 221503 64 8 0 221439 0
Current children cumulated CPU time (s) 700.01
Current children cumulated vsize (KiB) 887068



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+709.366 s]
/proc/loadavg: 1.99 1.84 1.13 3/73 15912
/proc/meminfo: memFree=507232/2055920 swapFree=4184804/4192956
[pid=15911] ppid=15909 vsize=939124 CPUtime=706.55
/proc/15911/stat : 15911 (VALCSP) R 15909 15911 15332 0 -1 4194304 234537 0 0 0 70556 99 0 0 25 0 1 0 246206738 961662976 234515 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134538684 0 0 4096 0 0 0 0 17 1 0 0
/proc/15911/statm: 234818 234521 64 8 0 234490 0
Current children cumulated CPU time (s) 706.55
Current children cumulated vsize (KiB) 939124

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 709.516
CPU time (s): 706.707
CPU user time (s): 705.566
CPU system time (s): 1.14083
CPU usage (%): 99.6041
Max. virtual memory (cumulated for all children) (KiB): 939124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 705.566
system time used= 1.14083
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 234569
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= 8500

runsolver used 0.723889 s user time and 1.80572 s system time

The end



Launcher Data (download as text)




Begin job on node56 on Tue Jan 16 20:08:04 UTC 2007


IDJOB= 268188
IDBENCH= 3704
IDSOLVER= 90
FILE ID= node56/268188-1168978083

PBS_JOBID= 3566142

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-80-5-add.xml
COMMAND LINE= /tmp/evaluation/268188-1168978083/VALCSP /tmp/evaluation/268188-1168978083/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-268188-1168978083 -o ROOT/results/node56/solver-268188-1168978083 -C 1800 -M 900  /tmp/evaluation/268188-1168978083/VALCSP /tmp/evaluation/268188-1168978083/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  7a51bbe4282e558cd323d92b7034649e

RANDOM SEED= 239866781

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		: 3000.232
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		: 3000.232
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:       1444480 kB
Buffers:         50720 kB
Cached:         470592 kB
SwapCached:       2356 kB
Active:         151804 kB
Inactive:       385088 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1444480 kB
SwapTotal:     4192956 kB
SwapFree:      4184804 kB
Dirty:             540 kB
Writeback:           0 kB
Mapped:          23172 kB
Slab:            59940 kB
Committed_AS:  4727316 kB
PageTables:       1812 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= 66564 MiB



End job on node56 on Tue Jan 16 20:19:56 UTC 2007