Trace number 2086983

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
pcs-restart 0.3.2? (MO) 386.725 387.642

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-21.xml
MD5SUM072422cec4661221beea8169477c3f47
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables84
Number of constraints3549
Maximum constraint arity2
Maximum domain size84
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3549
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.18/0.21	c Seed is 1440540448
0.18/0.21	c Constructing HOME/instance-2086983-1247727038.xml 
0.18/0.21	c deduced all_different(V1,V2,V3,V4,V5,V6,V7,V8,V9,V10,V11,V12,V13,V14,V15,V16,V17,V18,V19,V20,V21,V22,V23,V24,V25,V26,V27,V28,V29,V30,V31,V32,V33,V34,V35,V36,V37,V38,V39,V40,V41,V42,V43,V44,V45,V46,V47,V48,V49,V50,V51,V52,V53,V54,V55,V56,V57,V58,V59,V60,V61,V62,V63,V64,V65,V66,V67,V68,V69,V70,V71,V72,V73,V74,V75,V76,V77,V78,V79,V80,V81,V82,V83,V0)
0.18/0.21	c  with 3550 constraints
0.18/0.21	c Solving

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: <no 's ' line found>

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2086983-1247727038/watcher-2086983-1247727038 -o /tmp/evaluation-result-2086983-1247727038/solver-2086983-1247727038 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1440540448 HOME/instance-2086983-1247727038.xml 

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): 2000 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


[startup+0 s]
/proc/loadavg: 2.58 2.17 2.05 4/81 18799
/proc/meminfo: memFree=1624976/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=5356 CPUtime=0
/proc/18799/stat : 18799 (pcssolve) R 18797 18799 18531 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59771348 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 233632754335 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18799/statm: 1339 241 200 169 0 50 0
[pid=18800] ppid=18799 vsize=0 CPUtime=0
/proc/18800/stat : 18800 (fgrep) Z 18799 18799 18531 0 -1 4194316 155 0 0 0 0 0 0 0 22 0 1 0 59771348 0 0 996147200 0 0 0 0 0 0 0 4096 0 18446744071563351923 0 0 17 1 0 0
/proc/18800/statm: 0 0 0 0 0 0 0

[startup+0.0814771 s]
/proc/loadavg: 2.58 2.17 2.05 4/81 18799
/proc/meminfo: memFree=1624976/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=4816 CPUtime=0.06
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 889 656 0 0 6 0 0 0 18 0 1 0 59771348 4931584 520 996147200 134512640 135215973 4294956304 18446744073709551615 4159728992 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 1204 520 384 171 0 129 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4816

[startup+0.101478 s]
/proc/loadavg: 2.58 2.17 2.05 4/81 18799
/proc/meminfo: memFree=1624976/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=5080 CPUtime=0.08
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 927 656 0 0 8 0 0 0 18 0 1 0 59771348 5201920 558 996147200 134512640 135215973 4294956304 18446744073709551615 134762862 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 1270 558 384 171 0 195 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5080

[startup+0.301514 s]
/proc/loadavg: 2.58 2.17 2.05 4/81 18799
/proc/meminfo: memFree=1624976/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=6616 CPUtime=0.28
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 1335 656 0 0 27 1 0 0 19 0 1 0 59771348 6774784 966 996147200 134512640 135215973 4294956304 18446744073709551615 134532714 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 1654 966 408 171 0 579 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6616

[startup+0.701577 s]
/proc/loadavg: 2.58 2.17 2.05 4/81 18799
/proc/meminfo: memFree=1624976/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=7136 CPUtime=0.68
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 1449 656 0 0 67 1 0 0 23 0 1 0 59771348 7307264 1080 996147200 134512640 135215973 4294956304 18446744073709551615 134922823 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 1784 1080 408 171 0 709 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 7136

[startup+1.50171 s]
/proc/loadavg: 2.53 2.17 2.05 3/82 18804
/proc/meminfo: memFree=1621576/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=8840 CPUtime=1.47
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 1901 656 0 0 146 1 0 0 25 0 1 0 59771348 9052160 1532 996147200 134512640 135215973 4294956304 18446744073709551615 4158960053 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 2210 1532 408 171 0 1135 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8840

[startup+3.10297 s]
/proc/loadavg: 2.53 2.17 2.05 3/82 18804
/proc/meminfo: memFree=1619080/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=12868 CPUtime=3.05
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 2890 656 0 0 303 2 0 0 25 0 1 0 59771348 13176832 2488 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 3217 2488 408 171 0 2142 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 12868

[startup+6.30148 s]
/proc/loadavg: 2.49 2.17 2.05 3/82 18804
/proc/meminfo: memFree=1610376/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=21432 CPUtime=6.22
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 5065 656 0 0 619 3 0 0 25 0 1 0 59771348 21946368 4565 996147200 134512640 135215973 4294956304 18446744073709551615 134583697 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 5358 4565 408 171 0 4283 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 21432

[startup+12.7025 s]
/proc/loadavg: 2.45 2.17 2.05 3/82 18804
/proc/meminfo: memFree=1595784/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=35264 CPUtime=12.56
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 8626 656 0 0 1252 4 0 0 25 0 1 0 59771348 36110336 7997 996147200 134512640 135215973 4294956304 18446744073709551615 134532976 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 8816 7997 408 171 0 7741 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 35264

[startup+25.5016 s]
/proc/loadavg: 2.38 2.16 2.05 3/82 18804
/proc/meminfo: memFree=1565320/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=65332 CPUtime=25.24
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 16311 656 0 0 2516 8 0 0 25 0 1 0 59771348 66899968 15425 996147200 134512640 135215973 4294956304 18446744073709551615 134591286 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 16333 15425 408 171 0 15258 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 65332

[startup+51.1017 s]
/proc/loadavg: 2.23 2.14 2.04 3/82 18804
/proc/meminfo: memFree=1503304/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=128980 CPUtime=50.6
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 32539 656 0 0 5043 17 0 0 25 0 1 0 59771348 132075520 31075 996147200 134512640 135215973 4294956304 18446744073709551615 134532976 0 0 4096 0 0 0 0 17 1 0 0
/proc/18799/statm: 32245 31075 408 171 0 31170 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 128980

[startup+102.307 s]
/proc/loadavg: 2.11 2.12 2.04 3/82 18880
/proc/meminfo: memFree=1248408/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=247204 CPUtime=101.5
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 62762 656 0 0 10111 39 0 0 25 0 1 0 59771348 253136896 60273 996147200 134512640 135215973 4294956304 18446744073709551615 134591843 0 0 4096 0 0 0 0 17 0 0 0
/proc/18799/statm: 61801 60273 408 171 0 60726 0
Current children cumulated CPU time (s) 101.5
Current children cumulated vsize (KiB) 247204

[startup+162.302 s]
/proc/loadavg: 2.04 2.09 2.03 3/82 18880
/proc/meminfo: memFree=1097880/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=396052 CPUtime=161.47
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 100759 656 0 0 16091 56 0 0 25 0 1 0 59771348 405557248 98141 996147200 134512640 135215973 4294956304 18446744073709551615 11358049 0 0 4096 0 0 0 0 17 0 0 0
/proc/18799/statm: 99013 98141 408 171 0 97938 0
Current children cumulated CPU time (s) 161.47
Current children cumulated vsize (KiB) 396052

[startup+222.301 s]
/proc/loadavg: 2.01 2.08 2.03 3/82 18880
/proc/meminfo: memFree=955672/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=541684 CPUtime=221.44
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 137961 656 0 0 22072 72 0 0 25 0 1 0 59771348 554684416 133294 996147200 134512640 135215973 4294956304 18446744073709551615 134583622 0 0 4096 0 0 0 0 17 0 0 0
/proc/18799/statm: 135421 133294 408 171 0 134346 0
Current children cumulated CPU time (s) 221.44
Current children cumulated vsize (KiB) 541684

[startup+282.302 s]
/proc/loadavg: 2.00 2.06 2.02 3/82 18880
/proc/meminfo: memFree=823192/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=673540 CPUtime=281.41
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 171682 656 0 0 28053 88 0 0 25 0 1 0 59771348 689704960 166758 996147200 134512640 135215973 4294956304 18446744073709551615 134591653 0 0 4096 0 0 0 0 17 0 0 0
/proc/18799/statm: 168385 166758 408 171 0 167310 0
Current children cumulated CPU time (s) 281.41
Current children cumulated vsize (KiB) 673540

[startup+342.302 s]
/proc/loadavg: 2.00 2.05 2.02 3/82 18880
/proc/meminfo: memFree=688728/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=819804 CPUtime=341.39
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 209021 656 0 0 34032 107 0 0 25 0 1 0 59771348 839479296 200000 996147200 134512640 135215973 4294956304 18446744073709551615 134532714 0 0 4096 0 0 0 0 17 0 0 0
/proc/18799/statm: 204951 200000 408 171 0 203876 0
Current children cumulated CPU time (s) 341.39
Current children cumulated vsize (KiB) 819804



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+387.501 s]
/proc/loadavg: 2.00 2.04 2.01 3/82 18880
/proc/meminfo: memFree=583576/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=921640 CPUtime=386.57
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4194304 235086 656 0 0 38536 121 0 0 25 0 1 0 59771348 943759360 226065 996147200 134512640 135215973 4294956304 18446744073709551615 11354181 0 0 4096 0 0 0 0 17 0 0 0
/proc/18799/statm: 230410 226065 408 171 0 229335 0
Current children cumulated CPU time (s) 386.57
Current children cumulated vsize (KiB) 921640

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

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

[startup+387.607 s]
/proc/loadavg: 2.00 2.04 2.01 3/82 18880
/proc/meminfo: memFree=583576/2055920 swapFree=4192812/4192956
[pid=18799] ppid=18797 vsize=0 CPUtime=386.68
/proc/18799/stat : 18799 (pcs.big) R 18797 18799 18531 0 -1 4195332 235086 656 0 0 38537 131 0 0 25 0 1 0 59771348 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/18799/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 386.68
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 387.642
CPU time (s): 386.725
CPU user time (s): 385.371
CPU system time (s): 1.35379
CPU usage (%): 99.7636
Max. virtual memory (cumulated for all children) (KiB): 921640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 385.371
system time used= 1.35379
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 235742
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= 18
involuntary context switches= 3866

runsolver used 0.376942 second user time and 1.39479 second system time

The end

Launcher Data 

Begin job on node3 at 2009-07-16 08:50:38
IDJOB=2086983
IDBENCH=58671
IDSOLVER=734
FILE ID=node3/2086983-1247727038
PBS_JOBID= 9521495
Free space on /tmp= 66400 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-21.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086983-1247727038/watcher-2086983-1247727038 -o /tmp/evaluation-result-2086983-1247727038/solver-2086983-1247727038 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1440540448 HOME/instance-2086983-1247727038.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 072422cec4661221beea8169477c3f47
RANDOM SEED=1440540448

node3.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		: 3000.259
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		: 3000.259
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:       1625456 kB
Buffers:         73312 kB
Cached:         213580 kB
SwapCached:          0 kB
Active:         147988 kB
Inactive:       212148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1625456 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2200 kB
Writeback:           0 kB
Mapped:          93708 kB
Slab:            55324 kB
Committed_AS:   715864 kB
PageTables:       1928 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= 66372 MiB
End job on node3 at 2009-07-16 08:57:07