Trace number 2082275

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) 488.811 493.449

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-21.xml
MD5SUM0fd636b6525e64471a70028d502ce2bf
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 variables42
Number of constraints882
Maximum constraint arity2
Maximum domain size42
Number of constraints which are defined in extension0
Number of constraints which are defined in intension882
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 353233450
0.00/0.02	c Constructing HOME/instance-2082275-1247720831.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,V36,V37,V38,V39,V40,V41,V0)
0.00/0.04	c  with 883 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-2082275-1247720831/watcher-2082275-1247720831 -o /tmp/evaluation-result-2082275-1247720831/solver-2082275-1247720831 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 353233450 HOME/instance-2082275-1247720831.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 2.02 2.01 4/72 15600
/proc/meminfo: memFree=1330536/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=5356 CPUtime=0
/proc/15600/stat : 15600 (pcssolve) R 15598 15600 14325 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59143437 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 224627583647 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/15600/statm: 1339 241 200 169 0 50 0
[pid=15601] ppid=15600 vsize=0 CPUtime=0
/proc/15601/stat : 15601 (pcssolve) R 15600 15600 14325 0 -1 4194368 22 0 0 0 0 0 0 0 22 0 1 0 59143438 0 0 996147200 0 0 0 18446744073709551615 224627584295 0 0 4096 0 0 0 0 17 1 0 0
/proc/15601/statm: 0 0 0 0 0 0 0
[pid=15602] ppid=15600 vsize=5356 CPUtime=0
/proc/15602/stat : 15602 (pcssolve) R 15600 15600 14325 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 59143438 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 224627583647 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/15602/statm: 1339 241 200 169 0 50 0

[startup+0.071741 s]
/proc/loadavg: 2.08 2.02 2.01 4/72 15600
/proc/meminfo: memFree=1330536/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=4768 CPUtime=0.05
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 905 656 0 0 5 0 0 0 23 0 1 0 59143437 4882432 536 996147200 134512640 135215973 4294956304 18446744073709551615 4158960010 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 1192 536 408 171 0 117 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4768

[startup+0.101743 s]
/proc/loadavg: 2.08 2.02 2.01 4/72 15600
/proc/meminfo: memFree=1330536/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=4768 CPUtime=0.08
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 911 656 0 0 8 0 0 0 23 0 1 0 59143437 4882432 542 996147200 134512640 135215973 4294956304 18446744073709551615 4158847324 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 1192 542 408 171 0 117 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4768

[startup+0.301771 s]
/proc/loadavg: 2.08 2.02 2.01 4/72 15600
/proc/meminfo: memFree=1330536/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=5340 CPUtime=0.28
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 1017 656 0 0 28 0 0 0 25 0 1 0 59143437 5468160 648 996147200 134512640 135215973 4294956304 18446744073709551615 4275797 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 1335 648 408 171 0 260 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5340

[startup+0.701832 s]
/proc/loadavg: 2.08 2.02 2.01 4/72 15600
/proc/meminfo: memFree=1330536/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=5984 CPUtime=0.67
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 1202 656 0 0 67 0 0 0 25 0 1 0 59143437 6127616 833 996147200 134512640 135215973 4294956304 18446744073709551615 134600076 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 1496 833 408 171 0 421 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5984

[startup+1.50194 s]
/proc/loadavg: 2.07 2.02 2.00 3/73 15605
/proc/meminfo: memFree=1327968/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=7796 CPUtime=1.46
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 1636 656 0 0 146 0 0 0 25 0 1 0 59143437 7983104 1267 996147200 134512640 135215973 4294956304 18446744073709551615 4159345959 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 1949 1267 408 171 0 874 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 7796

[startup+3.10217 s]
/proc/loadavg: 2.07 2.02 2.00 3/73 15605
/proc/meminfo: memFree=1325216/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=11028 CPUtime=3.05
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 2473 656 0 0 304 1 0 0 25 0 1 0 59143437 11292672 2006 996147200 134512640 135215973 4294956304 18446744073709551615 134532661 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 2757 2006 408 171 0 1682 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 11028

[startup+6.30163 s]
/proc/loadavg: 2.07 2.02 2.00 3/73 15605
/proc/meminfo: memFree=1318368/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=17868 CPUtime=6.23
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 4281 656 0 0 620 3 0 0 25 0 1 0 59143437 18296832 3652 996147200 134512640 135215973 4294956304 18446744073709551615 134591470 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 4467 3652 408 171 0 3392 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 17868

[startup+12.7015 s]
/proc/loadavg: 2.06 2.02 2.00 3/73 15605
/proc/meminfo: memFree=1305696/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=30572 CPUtime=12.56
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 7639 656 0 0 1252 4 0 0 25 0 1 0 59143437 31305728 6688 996147200 134512640 135215973 4294956304 18446744073709551615 134982855 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 7643 6688 408 171 0 6568 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 30572

[startup+25.5014 s]
/proc/loadavg: 2.05 2.01 2.00 3/73 15605
/proc/meminfo: memFree=1277792/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=56512 CPUtime=25.24
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 14423 656 0 0 2515 9 0 0 25 0 1 0 59143437 57868288 13343 996147200 134512640 135215973 4294956304 18446744073709551615 134532667 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 14128 13343 408 171 0 13053 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 56512

[startup+51.102 s]
/proc/loadavg: 2.03 2.01 2.00 3/73 15605
/proc/meminfo: memFree=1226400/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=104752 CPUtime=50.6
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 27125 656 0 0 5045 15 0 0 25 0 1 0 59143437 107266048 25275 996147200 134512640 135215973 4294956304 18446744073709551615 134932271 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 26188 25275 408 171 0 25113 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 104752

[startup+102.306 s]
/proc/loadavg: 2.01 2.01 2.00 3/73 15605
/proc/meminfo: memFree=1125856/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=201676 CPUtime=101.32
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 52585 656 0 0 10102 30 0 0 25 0 1 0 59143437 206516224 49197 996147200 134512640 135215973 4294956304 18446744073709551615 4242940 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 50419 49197 408 171 0 49344 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 201676

[startup+162.302 s]
/proc/loadavg: 2.06 2.02 2.00 3/73 15605
/proc/meminfo: memFree=1009248/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=319956 CPUtime=160.76
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 83418 656 0 0 16027 49 0 0 25 0 1 0 59143437 327634944 77981 996147200 134512640 135215973 4294956304 18446744073709551615 134741724 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 79989 77981 408 171 0 78914 0
Current children cumulated CPU time (s) 160.76
Current children cumulated vsize (KiB) 319956

[startup+222.301 s]
/proc/loadavg: 2.09 2.04 2.01 3/73 15605
/proc/meminfo: memFree=898016/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=442580 CPUtime=220.19
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 115507 656 0 0 21953 66 0 0 25 0 1 0 59143437 453201920 104948 996147200 134512640 135215973 4294956304 18446744073709551615 4275819 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 110645 104948 408 171 0 109570 0
Current children cumulated CPU time (s) 220.19
Current children cumulated vsize (KiB) 442580

[startup+282.302 s]
/proc/loadavg: 2.14 2.06 2.01 3/73 15605
/proc/meminfo: memFree=802464/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=531552 CPUtime=279.63
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 139208 656 0 0 27881 82 0 0 25 0 1 0 59143437 544309248 128649 996147200 134512640 135215973 4294956304 18446744073709551615 134921505 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 132888 128649 408 171 0 131813 0
Current children cumulated CPU time (s) 279.63
Current children cumulated vsize (KiB) 531552

[startup+342.301 s]
/proc/loadavg: 2.05 2.05 2.01 3/73 15605
/proc/meminfo: memFree=700320/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=624352 CPUtime=339.07
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 163835 656 0 0 33810 97 0 0 25 0 1 0 59143437 639336448 153276 996147200 134512640 135215973 4294956304 18446744073709551615 4239647 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 156088 153276 408 171 0 155013 0
Current children cumulated CPU time (s) 339.07
Current children cumulated vsize (KiB) 624352

[startup+402.302 s]
/proc/loadavg: 2.05 2.05 2.01 3/73 15605
/proc/meminfo: memFree=595360/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=722608 CPUtime=398.5
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 189824 656 0 0 39736 114 0 0 25 0 1 0 59143437 739950592 179265 996147200 134512640 135215973 4294956304 18446744073709551615 134924030 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 180652 179265 408 171 0 179577 0
Current children cumulated CPU time (s) 398.5
Current children cumulated vsize (KiB) 722608

[startup+462.301 s]
/proc/loadavg: 2.02 2.04 2.00 3/73 15605
/proc/meminfo: memFree=476064/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=871228 CPUtime=457.94
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 228331 656 0 0 45659 135 0 0 25 0 1 0 59143437 892137472 207530 996147200 134512640 135215973 4294956304 18446744073709551615 134523588 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 217807 207530 408 171 0 216732 0
Current children cumulated CPU time (s) 457.94
Current children cumulated vsize (KiB) 871228



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+493.302 s]
/proc/loadavg: 2.01 2.03 2.00 3/73 15605
/proc/meminfo: memFree=420960/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=921792 CPUtime=488.65
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4194304 241653 656 0 0 48720 145 0 0 25 0 1 0 59143437 943915008 220852 996147200 134512640 135215973 4294956304 18446744073709551615 134935746 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 230448 220852 408 171 0 229373 0
Current children cumulated CPU time (s) 488.65
Current children cumulated vsize (KiB) 921792

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

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

[startup+493.407 s]
/proc/loadavg: 2.01 2.03 2.00 3/73 15605
/proc/meminfo: memFree=420960/2055920 swapFree=4192812/4192956
[pid=15600] ppid=15598 vsize=0 CPUtime=488.75
/proc/15600/stat : 15600 (pcs.big) R 15598 15600 14325 0 -1 4195332 241653 656 0 0 48720 155 0 0 25 0 1 0 59143437 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/15600/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 488.75
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 493.449
CPU time (s): 488.811
CPU user time (s): 487.204
CPU system time (s): 1.60676
CPU usage (%): 99.0599
Max. virtual memory (cumulated for all children) (KiB): 921792

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 487.204
system time used= 1.60675
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 242309
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= 10552

runsolver used 0.682896 second user time and 1.56976 second system time

The end

Launcher Data 

Begin job on node49 at 2009-07-16 07:07:11
IDJOB=2082275
IDBENCH=57563
IDSOLVER=734
FILE ID=node49/2082275-1247720831
PBS_JOBID= 9521444
Free space on /tmp= 66376 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-21.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082275-1247720831/watcher-2082275-1247720831 -o /tmp/evaluation-result-2082275-1247720831/solver-2082275-1247720831 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 353233450 HOME/instance-2082275-1247720831.xml

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

MD5SUM BENCH= 0fd636b6525e64471a70028d502ce2bf
RANDOM SEED=353233450

node49.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		: 3000.232
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:       1331016 kB
Buffers:         59820 kB
Cached:         485880 kB
SwapCached:          0 kB
Active:         224920 kB
Inactive:       437352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1331016 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2264 kB
Writeback:           0 kB
Mapped:         128100 kB
Slab:            47552 kB
Committed_AS:   632080 kB
PageTables:       1968 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66376 MiB
End job on node49 at 2009-07-16 07:15:26