Trace number 2082264

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) 437.024 438.437

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-18.xml
MD5SUMcc929e48dfecbcff805ad8354aa2ffc7
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 variables36
Number of constraints648
Maximum constraint arity2
Maximum domain size36
Number of constraints which are defined in extension0
Number of constraints which are defined in intension648
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
0.00/0.02	c Seed is 1233461243
0.00/0.02	c Constructing HOME/instance-2082264-1247720830.xml 
0.00/0.04	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,V0)
0.00/0.04	c  with 649 constraints
0.00/0.04	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-2082264-1247720830/watcher-2082264-1247720830 -o /tmp/evaluation-result-2082264-1247720830/solver-2082264-1247720830 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1233461243 HOME/instance-2082264-1247720830.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: 2.08 2.00 2.00 4/81 13461
/proc/meminfo: memFree=1436704/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=5356 CPUtime=0
/proc/13461/stat : 13461 (pcssolve) R 13459 13461 10176 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 59146307 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 248761608863 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/13461/statm: 1339 241 200 169 0 50 0
[pid=13462] ppid=13461 vsize=5356 CPUtime=0
/proc/13462/stat : 13462 (pcssolve) R 13461 13461 10176 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 59146308 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 248761608863 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/13462/statm: 1339 241 200 169 0 50 0

[startup+0.0667349 s]
/proc/loadavg: 2.08 2.00 2.00 4/81 13461
/proc/meminfo: memFree=1436704/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=4776 CPUtime=0.04
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 886 654 0 0 4 0 0 0 23 0 1 0 59146307 4890624 517 996147200 134512640 135215973 4294956304 18446744073709551615 4158960879 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 1194 517 408 171 0 119 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4776

[startup+0.102694 s]
/proc/loadavg: 2.08 2.00 2.00 4/81 13461
/proc/meminfo: memFree=1436704/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=4776 CPUtime=0.08
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 896 654 0 0 8 0 0 0 23 0 1 0 59146307 4890624 527 996147200 134512640 135215973 4294956304 18446744073709551615 134592594 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 1194 527 408 171 0 119 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4776

[startup+0.302715 s]
/proc/loadavg: 2.08 2.00 2.00 4/81 13461
/proc/meminfo: memFree=1436704/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=5168 CPUtime=0.27
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 994 654 0 0 27 0 0 0 25 0 1 0 59146307 5292032 625 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 1292 625 408 171 0 217 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5168

[startup+0.701758 s]
/proc/loadavg: 2.08 2.00 2.00 4/81 13461
/proc/meminfo: memFree=1436704/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=6084 CPUtime=0.67
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 1215 654 0 0 67 0 0 0 25 0 1 0 59146307 6230016 846 996147200 134512640 135215973 4294956304 18446744073709551615 134648295 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 1521 846 408 171 0 446 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6084

[startup+1.50182 s]
/proc/loadavg: 2.07 2.00 2.00 3/82 13466
/proc/meminfo: memFree=1434200/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=7636 CPUtime=1.47
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 1621 654 0 0 146 1 0 0 25 0 1 0 59146307 7819264 1252 996147200 134512640 135215973 4294956304 18446744073709551615 134583690 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 1909 1252 408 171 0 834 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7636

[startup+3.10197 s]
/proc/loadavg: 2.07 2.00 2.00 3/82 13466
/proc/meminfo: memFree=1431832/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=11280 CPUtime=3.05
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 2537 654 0 0 304 1 0 0 25 0 1 0 59146307 11550720 2070 996147200 134512640 135215973 4294956304 18446744073709551615 7315038 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 2820 2070 408 171 0 1745 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 11280

[startup+6.30126 s]
/proc/loadavg: 2.07 2.00 2.00 3/82 13466
/proc/meminfo: memFree=1424472/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=18568 CPUtime=6.22
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 4471 654 0 0 620 2 0 0 25 0 1 0 59146307 19013632 3842 996147200 134512640 135215973 4294956304 18446744073709551615 135096760 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 4642 3842 408 171 0 3567 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 18568

[startup+12.7018 s]
/proc/loadavg: 2.06 2.00 2.00 3/82 13466
/proc/meminfo: memFree=1411288/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=31852 CPUtime=12.56
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 7975 654 0 0 1252 4 0 0 25 0 1 0 59146307 32616448 7024 996147200 134512640 135215973 4294956304 18446744073709551615 134588208 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 7963 7024 408 171 0 6888 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 31852

[startup+25.503 s]
/proc/loadavg: 2.05 2.00 2.00 3/82 13466
/proc/meminfo: memFree=1383576/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=60128 CPUtime=25.24
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 15351 654 0 0 2516 8 0 0 25 0 1 0 59146307 61571072 13758 996147200 134512640 135215973 4294956304 18446744073709551615 134533252 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 15032 13758 408 171 0 13957 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 60128

[startup+51.1024 s]
/proc/loadavg: 2.03 2.00 2.00 3/82 13466
/proc/meminfo: memFree=1335256/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=111108 CPUtime=50.6
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 28789 654 0 0 5044 16 0 0 25 0 1 0 59146307 113774592 25914 996147200 134512640 135215973 4294956304 18446744073709551615 134934326 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 27777 25914 408 171 0 26702 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 111108

[startup+102.307 s]
/proc/loadavg: 2.01 2.00 2.00 3/82 13466
/proc/meminfo: memFree=1234072/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=216076 CPUtime=101.32
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 56378 654 0 0 10101 31 0 0 25 0 1 0 59146307 221261824 50941 996147200 134512640 135215973 4294956304 18446744073709551615 134612186 0 0 4096 0 0 0 0 17 1 0 0
/proc/13461/statm: 54019 50941 408 171 0 52944 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 216076

[startup+162.301 s]
/proc/loadavg: 2.06 2.01 2.00 3/82 13509
/proc/meminfo: memFree=1176544/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=331016 CPUtime=160.98
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 86612 654 0 0 16047 51 0 0 25 0 1 0 59146307 338960384 81175 996147200 134512640 135215973 4294956304 18446744073709551615 134599830 0 0 4096 0 0 0 0 17 0 0 0
/proc/13461/statm: 82754 81175 408 171 0 81679 0
Current children cumulated CPU time (s) 160.98
Current children cumulated vsize (KiB) 331016

[startup+222.302 s]
/proc/loadavg: 2.02 2.01 2.00 3/82 13509
/proc/meminfo: memFree=1056160/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=463440 CPUtime=220.95
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 121502 654 0 0 22024 71 0 0 25 0 1 0 59146307 474562560 110943 996147200 134512640 135215973 4294956304 18446744073709551615 7284347 0 0 4096 0 0 0 0 17 0 0 0
/proc/13461/statm: 115860 110943 408 171 0 114785 0
Current children cumulated CPU time (s) 220.95
Current children cumulated vsize (KiB) 463440

[startup+282.301 s]
/proc/loadavg: 2.01 2.00 2.00 3/82 13509
/proc/meminfo: memFree=938976/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=574816 CPUtime=280.93
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 151031 654 0 0 28005 88 0 0 25 0 1 0 59146307 588611584 140472 996147200 134512640 135215973 4294956304 18446744073709551615 134617361 0 0 4096 0 0 0 0 17 0 0 0
/proc/13461/statm: 143704 140473 408 171 0 142629 0
Current children cumulated CPU time (s) 280.93
Current children cumulated vsize (KiB) 574816

[startup+342.303 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13509
/proc/meminfo: memFree=814752/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=690964 CPUtime=340.91
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 181769 654 0 0 33988 103 0 0 25 0 1 0 59146307 707547136 171210 996147200 134512640 135215973 4294956304 18446744073709551615 7279940 0 0 4096 0 0 0 0 17 0 0 0
/proc/13461/statm: 172741 171210 408 171 0 171666 0
Current children cumulated CPU time (s) 340.91
Current children cumulated vsize (KiB) 690964

[startup+402.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13509
/proc/meminfo: memFree=686688/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=854388 CPUtime=400.88
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 224211 654 0 0 39965 123 0 0 25 0 1 0 59146307 874893312 203410 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 0 0 0
/proc/13461/statm: 213597 203410 408 171 0 212522 0
Current children cumulated CPU time (s) 400.88
Current children cumulated vsize (KiB) 854388



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+438.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13509
/proc/meminfo: memFree=613536/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=921832 CPUtime=436.87
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4194304 242026 654 0 0 43553 134 0 0 25 0 1 0 59146307 943955968 221225 996147200 134512640 135215973 4294956304 18446744073709551615 7284347 0 0 4096 0 0 0 0 17 0 0 0
/proc/13461/statm: 230458 221225 408 171 0 229383 0
Current children cumulated CPU time (s) 436.87
Current children cumulated vsize (KiB) 921832

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

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

[startup+438.407 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13509
/proc/meminfo: memFree=613536/2055920 swapFree=4192812/4192956
[pid=13461] ppid=13459 vsize=0 CPUtime=436.97
/proc/13461/stat : 13461 (pcs.big) R 13459 13461 10176 0 -1 4195332 242026 654 0 0 43553 144 0 0 25 0 1 0 59146307 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/13461/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 436.97
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 438.437
CPU time (s): 437.024
CPU user time (s): 435.539
CPU system time (s): 1.48477
CPU usage (%): 99.6776
Max. virtual memory (cumulated for all children) (KiB): 921832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 435.539
system time used= 1.48477
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 242680
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= 19
involuntary context switches= 6676

runsolver used 0.420936 second user time and 1.3138 second system time

The end

Launcher Data 

Begin job on node55 at 2009-07-16 07:07:10
IDJOB=2082264
IDBENCH=57562
IDSOLVER=734
FILE ID=node55/2082264-1247720830
PBS_JOBID= 9521403
Free space on /tmp= 66372 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-18.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082264-1247720830/watcher-2082264-1247720830 -o /tmp/evaluation-result-2082264-1247720830/solver-2082264-1247720830 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1233461243 HOME/instance-2082264-1247720830.xml

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

MD5SUM BENCH= cc929e48dfecbcff805ad8354aa2ffc7
RANDOM SEED=1233461243

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		: 3000.231
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:       1437184 kB
Buffers:         82824 kB
Cached:         368356 kB
SwapCached:          0 kB
Active:         263648 kB
Inactive:       282520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1437184 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2792 kB
Writeback:           0 kB
Mapped:         115436 kB
Slab:            57560 kB
Committed_AS:   656116 kB
PageTables:       1952 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 node55 at 2009-07-16 07:14:30