Trace number 1081525

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
MDG-noprobe 2008-06-27UNSAT 198.457 199.252

DiagnosticValue
ASSIGNMENTS934
CHECKS15114

General information on the benchmark

Namecsp/knights/
normalized-knights-25-5.xml
MD5SUM7db82ba6d255c2ecb99a834eebcb3238
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 benchmark0.825873
Satisfiable
(Un)Satisfiability was proved
Number of variables5
Number of constraints10
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension10
Global constraints used (with number of constraints)

Solver Data (download as text)

0.19/0.21	c mistral-prime version 1.313
198.39/199.25	s UNSATISFIABLE
198.39/199.25	d CHECKS 15114
198.39/199.25	d ASSIGNMENTS 934

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081525-1215217368/watcher-1081525-1215217368 -o /tmp/evaluation-result-1081525-1215217368/solver-1081525-1215217368 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1081525-1215217368.xml -heu dom/wdeg -res no 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 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
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: 1.97 2.01 1.99 4/72 30510
/proc/meminfo: memFree=1541368/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=820 CPUtime=0
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 1551403646 839680 25 996147200 134512640 135239859 4294956208 18446744073709551615 6849316 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 205 25 19 177 0 3 0

[startup+0.079025 s]
/proc/loadavg: 1.97 2.01 1.99 4/72 30510
/proc/meminfo: memFree=1541368/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4592 CPUtime=0.07
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 502 0 0 0 7 0 0 0 18 0 1 0 1551403646 4702208 468 996147200 134512640 135239859 4294956208 18446744073709551615 134532192 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1148 468 402 177 0 51 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4592

[startup+0.102026 s]
/proc/loadavg: 1.97 2.01 1.99 4/72 30510
/proc/meminfo: memFree=1541368/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4592 CPUtime=0.09
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 502 0 0 0 9 0 0 0 18 0 1 0 1551403646 4702208 468 996147200 134512640 135239859 4294956208 18446744073709551615 134536078 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1148 468 402 177 0 51 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4592

[startup+0.301062 s]
/proc/loadavg: 1.97 2.01 1.99 4/72 30510
/proc/meminfo: memFree=1541368/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4592 CPUtime=0.29
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 502 0 0 0 29 0 0 0 19 0 1 0 1551403646 4702208 468 996147200 134512640 135239859 4294956208 18446744073709551615 134535371 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1148 468 402 177 0 51 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4592

[startup+0.701131 s]
/proc/loadavg: 1.97 2.01 1.99 4/72 30510
/proc/meminfo: memFree=1541368/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4592 CPUtime=0.69
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 502 0 0 0 69 0 0 0 23 0 1 0 1551403646 4702208 468 996147200 134512640 135239859 4294956208 18446744073709551615 134536081 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1148 468 402 177 0 51 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4592

[startup+1.50127 s]
/proc/loadavg: 1.97 2.01 1.99 3/73 30511
/proc/meminfo: memFree=1541040/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4592 CPUtime=1.48
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 505 0 0 0 148 0 0 0 25 0 1 0 1551403646 4702208 471 996147200 134512640 135239859 4294956208 18446744073709551615 134535329 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1148 471 405 177 0 51 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 4592

[startup+3.10154 s]
/proc/loadavg: 1.97 2.01 1.99 3/73 30511
/proc/meminfo: memFree=1540912/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4592 CPUtime=3.08
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 505 0 0 0 308 0 0 0 25 0 1 0 1551403646 4702208 471 996147200 134512640 135239859 4294956208 18446744073709551615 134536000 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1148 471 405 177 0 51 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 4592

[startup+6.30109 s]
/proc/loadavg: 1.97 2.01 1.99 3/73 30511
/proc/meminfo: memFree=1540848/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4592 CPUtime=6.27
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 505 0 0 0 627 0 0 0 25 0 1 0 1551403646 4702208 471 996147200 134512640 135239859 4294956208 18446744073709551615 134535329 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1148 471 405 177 0 51 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 4592

[startup+12.7012 s]
/proc/loadavg: 1.98 2.01 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4592 CPUtime=12.64
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 505 0 0 0 1264 0 0 0 25 0 1 0 1551403646 4702208 471 996147200 134512640 135239859 4294956208 18446744073709551615 134536001 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1148 471 405 177 0 51 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 4592

[startup+25.5014 s]
/proc/loadavg: 1.98 2.01 1.99 3/73 30511
/proc/meminfo: memFree=1540784/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4596 CPUtime=25.39
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 506 0 0 0 2539 0 0 0 25 0 1 0 1551403646 4706304 472 996147200 134512640 135239859 4294956208 18446744073709551615 134532176 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1149 472 405 177 0 52 0
Current children cumulated CPU time (s) 25.39
Current children cumulated vsize (KiB) 4596

[startup+51.1018 s]
/proc/loadavg: 1.99 2.01 1.99 3/73 30511
/proc/meminfo: memFree=1540848/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4600 CPUtime=50.88
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 507 0 0 0 5088 0 0 0 25 0 1 0 1551403646 4710400 473 996147200 134512640 135239859 4294956208 18446744073709551615 134534780 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1150 473 405 177 0 53 0
Current children cumulated CPU time (s) 50.88
Current children cumulated vsize (KiB) 4600

[startup+102.306 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4612 CPUtime=101.88
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 510 0 0 0 10188 0 0 0 25 0 1 0 1551403646 4722688 476 996147200 134512640 135239859 4294956208 18446744073709551615 134536078 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1153 476 405 177 0 56 0
Current children cumulated CPU time (s) 101.88
Current children cumulated vsize (KiB) 4612

[startup+162.302 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4636 CPUtime=161.64
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 516 0 0 0 16164 0 0 0 25 0 1 0 1551403646 4747264 482 996147200 134512640 135239859 4294956208 18446744073709551615 134534792 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1159 482 405 177 0 62 0
Current children cumulated CPU time (s) 161.64
Current children cumulated vsize (KiB) 4636

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

[startup+179.102 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4644 CPUtime=178.38
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 518 0 0 0 17838 0 0 0 25 0 1 0 1551403646 4755456 484 996147200 134512640 135239859 4294956208 18446744073709551615 134540880 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1161 484 405 177 0 64 0
Current children cumulated CPU time (s) 178.38
Current children cumulated vsize (KiB) 4644

[startup+191.902 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4652 CPUtime=191.13
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 520 0 0 0 19113 0 0 0 25 0 1 0 1551403646 4763648 486 996147200 134512640 135239859 4294956208 18446744073709551615 134532177 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1163 486 405 177 0 66 0
Current children cumulated CPU time (s) 191.13
Current children cumulated vsize (KiB) 4652

[startup+195.101 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4652 CPUtime=194.31
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 520 0 0 0 19431 0 0 0 25 0 1 0 1551403646 4763648 486 996147200 134512640 135239859 4294956208 18446744073709551615 134538496 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1163 486 405 177 0 66 0
Current children cumulated CPU time (s) 194.31
Current children cumulated vsize (KiB) 4652

[startup+196.702 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4656 CPUtime=195.91
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 521 0 0 0 19591 0 0 0 25 0 1 0 1551403646 4767744 487 996147200 134512640 135239859 4294956208 18446744073709551615 134543147 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1164 487 405 177 0 67 0
Current children cumulated CPU time (s) 195.91
Current children cumulated vsize (KiB) 4656

[startup+198.302 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4656 CPUtime=197.5
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 521 0 0 0 19750 0 0 0 25 0 1 0 1551403646 4767744 487 996147200 134512640 135239859 4294956208 18446744073709551615 134535328 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1164 487 405 177 0 67 0
Current children cumulated CPU time (s) 197.5
Current children cumulated vsize (KiB) 4656

[startup+198.702 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4660 CPUtime=197.9
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 522 0 0 0 19790 0 0 0 25 0 1 0 1551403646 4771840 488 996147200 134512640 135239859 4294956208 18446744073709551615 134534792 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1165 488 405 177 0 68 0
Current children cumulated CPU time (s) 197.9
Current children cumulated vsize (KiB) 4660

[startup+199.105 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4660 CPUtime=198.3
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 522 0 0 0 19830 0 0 0 25 0 1 0 1551403646 4771840 488 996147200 134512640 135239859 4294956208 18446744073709551615 134536048 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1165 488 405 177 0 68 0
Current children cumulated CPU time (s) 198.3
Current children cumulated vsize (KiB) 4660

[startup+199.201 s]
/proc/loadavg: 1.99 2.00 1.99 3/73 30511
/proc/meminfo: memFree=1540720/2055920 swapFree=4180408/4192956
[pid=30510] ppid=30508 vsize=4660 CPUtime=198.39
/proc/30510/stat : 30510 (xsolve) R 30508 30510 29431 0 -1 4194304 522 0 0 0 19839 0 0 0 25 0 1 0 1551403646 4771840 488 996147200 134512640 135239859 4294956208 18446744073709551615 134532176 0 0 4096 0 0 0 0 17 1 0 0
/proc/30510/statm: 1165 488 405 177 0 68 0
Current children cumulated CPU time (s) 198.39
Current children cumulated vsize (KiB) 4660

Child status: 0
Real time (s): 199.252
CPU time (s): 198.457
CPU user time (s): 198.449
CPU system time (s): 0.007998
CPU usage (%): 99.6011
Max. virtual memory (cumulated for all children) (KiB): 4660

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 198.449
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 537
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= 7
involuntary context switches= 2300

runsolver used 0.245962 second user time and 0.488925 second system time

The end

Launcher Data (download as text)

Begin job on node55 at 2008-07-05 02:22:48
IDJOB=1081525
IDBENCH=57109
IDSOLVER=343
FILE ID=node55/1081525-1215217368
PBS_JOBID= 7881750
Free space on /tmp= 66428 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/knights/normalized-knights-25-5.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dom/wdeg -res no 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081525-1215217368/watcher-1081525-1215217368 -o /tmp/evaluation-result-1081525-1215217368/solver-1081525-1215217368 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1081525-1215217368.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 7db82ba6d255c2ecb99a834eebcb3238
RANDOM SEED=1742350906

node55.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.261
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		: 3000.261
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:       1541848 kB
Buffers:         85428 kB
Cached:         348816 kB
SwapCached:       6804 kB
Active:         214056 kB
Inactive:       238252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1541848 kB
SwapTotal:     4192956 kB
SwapFree:      4180408 kB
Dirty:            1016 kB
Writeback:           0 kB
Mapped:          25168 kB
Slab:            47224 kB
Committed_AS:  3075180 kB
PageTables:       1708 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= 66428 MiB
End job on node55 at 2008-07-05 02:26:08