Trace number 2082274

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 0.3.2? (MO) 463.358 465.843

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
0.18/0.21	c Seed is 1030687698
0.18/0.21	c Constructing HOME/instance-2082274-1247720831.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,V0)
0.18/0.21	c  with 883 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-2082274-1247720831/watcher-2082274-1247720831 -o /tmp/evaluation-result-2082274-1247720831/solver-2082274-1247720831 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1030687698 HOME/instance-2082274-1247720831.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: 2.01 2.02 2.00 4/81 14074
/proc/meminfo: memFree=1487952/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=5356 CPUtime=0
/proc/14074/stat : 14074 (pcssolve) R 14072 14074 12541 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 59149950 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 231962372767 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14074/statm: 1339 241 200 169 0 50 0
[pid=14075] ppid=14074 vsize=5356 CPUtime=0
/proc/14075/stat : 14075 (pcssolve) R 14074 14074 12541 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 59149950 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 231962372767 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14075/statm: 1339 241 200 169 0 50 0

[startup+0.110038 s]
/proc/loadavg: 2.01 2.02 2.00 4/81 14074
/proc/meminfo: memFree=1487952/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=4768 CPUtime=0.09
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 911 656 0 0 9 0 0 0 18 0 1 0 59149950 4882432 542 996147200 134512640 135215973 4294956304 18446744073709551615 7671423 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 1192 542 408 171 0 117 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4768

[startup+0.201011 s]
/proc/loadavg: 2.01 2.02 2.00 4/81 14074
/proc/meminfo: memFree=1487952/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=5032 CPUtime=0.18
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 969 656 0 0 18 0 0 0 18 0 1 0 59149950 5152768 600 996147200 134512640 135215973 4294956304 18446744073709551615 4158960056 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 1258 600 408 171 0 183 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5032

[startup+0.301982 s]
/proc/loadavg: 2.01 2.02 2.00 4/81 14074
/proc/meminfo: memFree=1487952/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=5288 CPUtime=0.28
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 1038 656 0 0 28 0 0 0 19 0 1 0 59149950 5414912 669 996147200 134512640 135215973 4294956304 18446744073709551615 7638898 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 1322 669 408 171 0 247 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5288

[startup+0.701865 s]
/proc/loadavg: 2.01 2.02 2.00 4/81 14074
/proc/meminfo: memFree=1487952/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=6124 CPUtime=0.67
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 1218 656 0 0 67 0 0 0 23 0 1 0 59149950 6270976 849 996147200 134512640 135215973 4294956304 18446744073709551615 134589176 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 1531 849 408 171 0 456 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6124

[startup+1.50164 s]
/proc/loadavg: 2.01 2.02 2.00 3/82 14079
/proc/meminfo: memFree=1485064/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=7816 CPUtime=1.46
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 1648 656 0 0 146 0 0 0 25 0 1 0 59149950 8003584 1279 996147200 134512640 135215973 4294956304 18446744073709551615 134591375 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 1954 1279 408 171 0 879 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 7816

[startup+3.10118 s]
/proc/loadavg: 2.01 2.02 2.00 3/82 14079
/proc/meminfo: memFree=1482760/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=10804 CPUtime=3.05
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 2432 656 0 0 304 1 0 0 25 0 1 0 59149950 11063296 2030 996147200 134512640 135215973 4294956304 18446744073709551615 134742278 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 2701 2030 408 171 0 1626 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 10804

[startup+6.30226 s]
/proc/loadavg: 2.01 2.02 2.00 3/82 14079
/proc/meminfo: memFree=1475784/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=17944 CPUtime=6.22
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 4279 656 0 0 620 2 0 0 25 0 1 0 59149950 18374656 3779 996147200 134512640 135215973 4294956304 18446744073709551615 134932215 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 4486 3779 408 171 0 3411 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 17944

[startup+12.7014 s]
/proc/loadavg: 2.01 2.02 2.00 3/82 14079
/proc/meminfo: memFree=1463112/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=31088 CPUtime=12.56
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 7750 656 0 0 1252 4 0 0 25 0 1 0 59149950 31834112 6799 996147200 134512640 135215973 4294956304 18446744073709551615 134676022 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 7772 6799 408 171 0 6697 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 31088

[startup+25.5017 s]
/proc/loadavg: 2.01 2.02 2.00 3/82 14079
/proc/meminfo: memFree=1435592/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=57220 CPUtime=25.25
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 14587 656 0 0 2518 7 0 0 25 0 1 0 59149950 58593280 13507 996147200 134512640 135215973 4294956304 18446744073709551615 4159337007 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 14305 13507 408 171 0 13230 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 57220

[startup+51.1014 s]
/proc/loadavg: 2.12 2.05 2.01 3/82 14079
/proc/meminfo: memFree=1386696/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=107060 CPUtime=50.62
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 27683 656 0 0 5049 13 0 0 25 0 1 0 59149950 109629440 25833 996147200 134512640 135215973 4294956304 18446744073709551615 134932084 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 26765 25833 408 171 0 25690 0
Current children cumulated CPU time (s) 50.62
Current children cumulated vsize (KiB) 107060

[startup+102.302 s]
/proc/loadavg: 2.05 2.04 2.00 3/82 14079
/proc/meminfo: memFree=1289224/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=204532 CPUtime=101.37
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 53307 656 0 0 10111 26 0 0 25 0 1 0 59149950 209440768 49919 996147200 134512640 135215973 4294956304 18446744073709551615 134585694 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 51133 49919 408 171 0 50058 0
Current children cumulated CPU time (s) 101.37
Current children cumulated vsize (KiB) 204532

[startup+162.301 s]
/proc/loadavg: 2.02 2.03 2.00 3/82 14079
/proc/meminfo: memFree=1170696/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=327128 CPUtime=160.82
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 85223 656 0 0 16041 41 0 0 25 0 1 0 59149950 334979072 79786 996147200 134512640 135215973 4294956304 18446744073709551615 134928385 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 81782 79786 408 171 0 80707 0
Current children cumulated CPU time (s) 160.82
Current children cumulated vsize (KiB) 327128

[startup+222.307 s]
/proc/loadavg: 2.00 2.02 2.00 3/82 14079
/proc/meminfo: memFree=1062600/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=448284 CPUtime=220.29
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 117045 656 0 0 21971 58 0 0 25 0 1 0 59149950 459042816 106486 996147200 134512640 135215973 4294956304 18446744073709551615 134629842 0 0 4096 0 0 0 0 17 1 0 0
/proc/14074/statm: 112071 106486 408 171 0 110996 0
Current children cumulated CPU time (s) 220.29
Current children cumulated vsize (KiB) 448284

[startup+282.301 s]
/proc/loadavg: 2.01 2.02 2.00 3/73 14113
/proc/meminfo: memFree=917336/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=541564 CPUtime=279.82
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 141844 656 0 0 27906 76 0 0 25 0 1 0 59149950 554561536 131285 996147200 134512640 135215973 4294956304 18446744073709551615 7640078 0 0 4096 0 0 0 0 17 0 0 0
/proc/14074/statm: 135391 131285 408 171 0 134316 0
Current children cumulated CPU time (s) 279.82
Current children cumulated vsize (KiB) 541564

[startup+342.302 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 14113
/proc/meminfo: memFree=793048/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=647896 CPUtime=339.8
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 170004 656 0 0 33887 93 0 0 25 0 1 0 59149950 663445504 159445 996147200 134512640 135215973 4294956304 18446744073709551615 7638881 0 0 4096 0 0 0 0 17 0 0 0
/proc/14074/statm: 161974 159445 408 171 0 160899 0
Current children cumulated CPU time (s) 339.8
Current children cumulated vsize (KiB) 647896

[startup+402.301 s]
/proc/loadavg: 2.07 2.02 2.00 3/73 14113
/proc/meminfo: memFree=667992/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=775520 CPUtime=399.8
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 203426 656 0 0 39868 112 0 0 25 0 1 0 59149950 794132480 190818 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 0 0 0
/proc/14074/statm: 193880 190818 408 171 0 192805 0
Current children cumulated CPU time (s) 399.8
Current children cumulated vsize (KiB) 775520

[startup+462.301 s]
/proc/loadavg: 2.02 2.02 2.00 3/73 14113
/proc/meminfo: memFree=552152/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=915648 CPUtime=459.8
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 239900 656 0 0 45846 134 0 0 25 0 1 0 59149950 937623552 219099 996147200 134512640 135215973 4294956304 18446744073709551615 7640699 0 0 4096 0 0 0 0 17 0 0 0
/proc/14074/statm: 228912 219099 408 171 0 227837 0
Current children cumulated CPU time (s) 459.8
Current children cumulated vsize (KiB) 915648



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+465.701 s]
/proc/loadavg: 2.02 2.02 2.00 3/73 14113
/proc/meminfo: memFree=545240/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=921644 CPUtime=463.2
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4194304 241497 656 0 0 46185 135 0 0 25 0 1 0 59149950 943763456 220696 996147200 134512640 135215973 4294956304 18446744073709551615 134932297 0 0 4096 0 0 0 0 17 0 0 0
/proc/14074/statm: 230411 220697 408 171 0 229336 0
Current children cumulated CPU time (s) 463.2
Current children cumulated vsize (KiB) 921644

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

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

[startup+465.806 s]
/proc/loadavg: 2.02 2.02 2.00 3/73 14113
/proc/meminfo: memFree=545240/2055920 swapFree=4192812/4192956
[pid=14074] ppid=14072 vsize=0 CPUtime=463.3
/proc/14074/stat : 14074 (pcs.big) R 14072 14074 12541 0 -1 4195332 241498 656 0 0 46185 145 0 0 25 0 1 0 59149950 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/14074/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 463.3
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 465.843
CPU time (s): 463.358
CPU user time (s): 461.864
CPU system time (s): 1.49377
CPU usage (%): 99.4665
Max. virtual memory (cumulated for all children) (KiB): 921644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 461.864
system time used= 1.49377
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 242154
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= 20
involuntary context switches= 11958

runsolver used 0.629904 second user time and 1.41678 second system time

The end

Launcher Data 

Begin job on node16 at 2009-07-16 07:07:11
IDJOB=2082274
IDBENCH=57563
IDSOLVER=733
FILE ID=node16/2082274-1247720831
PBS_JOBID= 9521454
Free space on /tmp= 66416 MiB

SOLVER NAME= pcs 0.2
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-2082274-1247720831/watcher-2082274-1247720831 -o /tmp/evaluation-result-2082274-1247720831/solver-2082274-1247720831 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1030687698 HOME/instance-2082274-1247720831.xml

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

MD5SUM BENCH= 0fd636b6525e64471a70028d502ce2bf
RANDOM SEED=1030687698

node16.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:       1488432 kB
Buffers:         70232 kB
Cached:         389108 kB
SwapCached:          0 kB
Active:          79928 kB
Inactive:       418216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1488432 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1812 kB
Writeback:           0 kB
Mapped:          59244 kB
Slab:            54408 kB
Committed_AS:   549492 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= 66392 MiB
End job on node16 at 2009-07-16 07:14:59