Trace number 1875870

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
wbo 1.0UNSAT 21.7727 21.7789

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110967142.opb
MD5SUMbf3ef0de19a9022f2739cc274dcb4ec9
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark3.13552
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1145
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c This is wbo 1.0 alpha (based on Minisat 2.0 beta)
0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c Parsing opb file format. File HOME/instance-1875870-1245115781.opb.
0.00/0.00	c Instance file HOME/instance-1875870-1245115781.opb
0.00/0.00	c File size is 9896 bytes.
0.00/0.00	c Highest Coefficient sum: 1145
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Parsing time:          0.00         s                                      |
0.00/0.00	c |  Number Variables:      169                                                 |
0.00/0.00	c |  Number Clauses:        30                                                  |
0.00/0.00	c |  Number Cardinality:    70                                                  |
0.00/0.00	c |  Number PB Constraints: 1                                                   |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |     169      101     1205 |     5000        0    nan |  0.000 % |
0.00/0.00	c |       102 |     169      101     1205 |     5500      102     32 |  0.004 % |
0.00/0.01	c |       252 |     169      101     1205 |     6050      252     33 |  0.004 % |
0.00/0.02	c |       478 |     169      101     1205 |     6655      478     35 |  0.004 % |
0.00/0.04	c |       816 |     169      101     1205 |     7320      816     36 |  0.004 % |
0.00/0.07	c |      1322 |     169      101     1205 |     8052     1322     36 |  0.004 % |
0.09/0.12	c |      2082 |     169      101     1205 |     8857     2082     40 |  0.004 % |
0.19/0.20	c |      3222 |     169      101     1205 |     9743     3222     40 |  0.004 % |
0.29/0.34	c |      4930 |     169      101     1205 |    10717     4930     43 |  0.004 % |
0.59/0.60	c |      7492 |     169      101     1205 |    11789     7492     44 |  0.004 % |
1.09/1.13	c |     11336 |     169      101     1205 |    12968    11336     46 |  0.004 % |
1.89/1.99	c |     17106 |     169      101     1205 |    14265    10565     48 |  0.004 % |
3.59/3.67	c |     25757 |     169      101     1205 |    15692    12031     50 |  0.004 % |
5.78/5.87	c |     38733 |     169      101     1205 |    17261     9234     50 |  0.004 % |
9.49/9.54	c |     58196 |     169      101     1205 |    18987    11327     55 |  0.004 % |
16.08/16.10	c |     87390 |     169      101     1205 |    20886    11903     53 |  0.004 % |
20.38/20.45	c ===============================================================================
21.69/21.77	c core #1
21.69/21.77	c Core size: 99	Core Weight: 2147483647	Total Weight: 2147483647
21.69/21.77	c restarts              : 16
21.69/21.77	c conflicts             : 107291         (4989 /sec)
21.69/21.77	c decisions             : 138157         (1.11 % random) (6424 /sec)
21.69/21.77	c propagations          : 2143962        (99697 /sec)
21.69/21.77	c conflict literals     : 5898525        (0.00 % deleted)
21.69/21.77	c Memory used           : 46.79 MB
21.69/21.77	c CPU time              : 21.5047 s
21.69/21.77	c 
21.69/21.77	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation 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-1875870-1245115781/watcher-1875870-1245115781 -o /tmp/evaluation-result-1875870-1245115781/solver-1875870-1245115781 -C 1800 -W 2000 -M 1800 wbo -file-format=opb -time-limit=1800 HOME/instance-1875870-1245115781.opb 

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): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.03 3/64 32498
/proc/meminfo: memFree=1086832/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=2524 CPUtime=0
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 201 0 0 0 0 0 0 0 18 0 1 0 179175426 2584576 182 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 631 182 134 292 0 336 0

[startup+0.103687 s]
/proc/loadavg: 1.00 1.00 1.03 3/64 32498
/proc/meminfo: memFree=1086832/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=3052 CPUtime=0.09
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 350 0 0 0 9 0 0 0 18 0 1 0 179175426 3125248 331 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 763 331 135 292 0 468 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3052

[startup+0.201696 s]
/proc/loadavg: 1.00 1.00 1.03 3/64 32498
/proc/meminfo: memFree=1086832/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=3580 CPUtime=0.19
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 473 0 0 0 19 0 0 0 18 0 1 0 179175426 3665920 454 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 895 454 135 292 0 600 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3580

[startup+0.301706 s]
/proc/loadavg: 1.00 1.00 1.03 3/64 32498
/proc/meminfo: memFree=1086832/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=3976 CPUtime=0.29
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 587 0 0 0 29 0 0 0 19 0 1 0 179175426 4071424 568 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 994 568 135 292 0 699 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3976

[startup+0.701745 s]
/proc/loadavg: 1.00 1.00 1.03 3/64 32498
/proc/meminfo: memFree=1086832/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=5428 CPUtime=0.69
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 953 0 0 0 68 1 0 0 22 0 1 0 179175426 5558272 934 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 1357 934 135 292 0 1062 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5428

[startup+1.50182 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 32499
/proc/meminfo: memFree=1082472/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=7472 CPUtime=1.49
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 1453 0 0 0 147 2 0 0 25 0 1 0 179175426 7651328 1434 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 1868 1434 135 292 0 1573 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7472

[startup+3.10298 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 32499
/proc/meminfo: memFree=1079656/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=11036 CPUtime=3.09
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 2347 0 0 0 304 5 0 0 25 0 1 0 179175426 11300864 2328 1992294400 134512640 135709839 4294956240 18446744073709551615 134574300 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 2759 2328 135 292 0 2464 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11036

[startup+6.3013 s]
/proc/loadavg: 1.08 1.02 1.03 2/65 32499
/proc/meminfo: memFree=1072488/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=18032 CPUtime=6.29
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 4090 0 0 0 620 9 0 0 25 0 1 0 179175426 18464768 4071 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 4508 4071 135 292 0 4213 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18032

[startup+12.7019 s]
/proc/loadavg: 1.07 1.02 1.03 2/65 32499
/proc/meminfo: memFree=1059432/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=30208 CPUtime=12.68
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 7140 0 0 0 1252 16 0 0 25 0 1 0 179175426 30932992 7121 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 7552 7121 135 292 0 7257 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 30208

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

[startup+12.8019 s]
/proc/loadavg: 1.07 1.02 1.03 2/65 32499
/proc/meminfo: memFree=1059432/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=30340 CPUtime=12.78
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 7177 0 0 0 1262 16 0 0 25 0 1 0 179175426 31068160 7158 1992294400 134512640 135709839 4294956240 18446744073709551615 134517521 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 7585 7158 135 292 0 7290 0
Current children cumulated CPU time (s) 12.78
Current children cumulated vsize (KiB) 30340

[startup+16.0013 s]
/proc/loadavg: 1.07 1.02 1.03 2/65 32499
/proc/meminfo: memFree=1053608/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=36292 CPUtime=15.98
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 8659 0 0 0 1578 20 0 0 25 0 1 0 179175426 37163008 8640 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 9073 8640 135 292 0 8778 0
Current children cumulated CPU time (s) 15.98
Current children cumulated vsize (KiB) 36292

[startup+19.2016 s]
/proc/loadavg: 1.06 1.02 1.03 2/65 32499
/proc/meminfo: memFree=1047720/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=41972 CPUtime=19.19
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 10058 0 0 0 1895 24 0 0 25 0 1 0 179175426 42979328 10039 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 10493 10039 135 292 0 10198 0
Current children cumulated CPU time (s) 19.19
Current children cumulated vsize (KiB) 41972

[startup+20.8017 s]
/proc/loadavg: 1.06 1.02 1.03 2/65 32499
/proc/meminfo: memFree=1045608/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=46988 CPUtime=20.78
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 11312 0 0 0 2053 25 0 0 25 0 1 0 179175426 48115712 11293 1992294400 134512640 135709839 4294956240 18446744073709551615 135168571 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 11747 11293 136 292 0 11452 0
Current children cumulated CPU time (s) 20.78
Current children cumulated vsize (KiB) 46988

[startup+21.2018 s]
/proc/loadavg: 1.06 1.02 1.03 2/65 32499
/proc/meminfo: memFree=1041384/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=47912 CPUtime=21.19
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 11562 0 0 0 2093 26 0 0 25 0 1 0 179175426 49061888 11543 1992294400 134512640 135709839 4294956240 18446744073709551615 134583795 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 11978 11543 136 292 0 11683 0
Current children cumulated CPU time (s) 21.19
Current children cumulated vsize (KiB) 47912

[startup+21.6018 s]
/proc/loadavg: 1.06 1.02 1.03 2/65 32499
/proc/meminfo: memFree=1041384/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=47912 CPUtime=21.59
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 11562 0 0 0 2133 26 0 0 25 0 1 0 179175426 49061888 11543 1992294400 134512640 135709839 4294956240 18446744073709551615 134520142 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 11978 11543 136 292 0 11683 0
Current children cumulated CPU time (s) 21.59
Current children cumulated vsize (KiB) 47912

[startup+21.7018 s]
/proc/loadavg: 1.06 1.02 1.03 2/65 32499
/proc/meminfo: memFree=1041384/2055920 swapFree=4192812/4192956
[pid=32498] ppid=32496 vsize=47912 CPUtime=21.69
/proc/32498/stat : 32498 (wbo) R 32496 32498 31844 0 -1 4194304 11562 0 0 0 2143 26 0 0 25 0 1 0 179175426 49061888 11543 1992294400 134512640 135709839 4294956240 18446744073709551615 135182873 0 0 4096 3 0 0 0 17 1 0 0
/proc/32498/statm: 11978 11543 136 292 0 11683 0
Current children cumulated CPU time (s) 21.69
Current children cumulated vsize (KiB) 47912

Child status: 0
Real time (s): 21.7789
CPU time (s): 21.7727
CPU user time (s): 21.5047
CPU system time (s): 0.267959
CPU usage (%): 99.9713
Max. virtual memory (cumulated for all children) (KiB): 47912

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.5047
system time used= 0.267959
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11564
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= 2
involuntary context switches= 22

runsolver used 0.021996 second user time and 0.051992 second system time

The end

Launcher Data 

Begin job on node36 at 2009-06-16 03:29:41
IDJOB=1875870
IDBENCH=1229
IDSOLVER=698
FILE ID=node36/1875870-1245115781
PBS_JOBID= 9363652
Free space on /tmp= 66200 MiB

SOLVER NAME= wbo 1.0
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110967142.opb
COMMAND LINE= wbo -file-format=opb -time-limit=TIMEOUT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1875870-1245115781/watcher-1875870-1245115781 -o /tmp/evaluation-result-1875870-1245115781/solver-1875870-1245115781 -C 1800 -W 2000 -M 1800  wbo -file-format=opb -time-limit=1800 HOME/instance-1875870-1245115781.opb

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

MD5SUM BENCH= bf3ef0de19a9022f2739cc274dcb4ec9
RANDOM SEED=151391081

node36.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		: 3000.230
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		: 3000.230
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:       1087248 kB
Buffers:         32584 kB
Cached:         871204 kB
SwapCached:          0 kB
Active:          69184 kB
Inactive:       848476 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1087248 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2592 kB
Writeback:           0 kB
Mapped:          23700 kB
Slab:            37064 kB
Committed_AS:   156064 kB
PageTables:       1360 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1875870-1245115781.opb

Free space on /tmp at the end= 66196 MiB
End job on node36 at 2009-06-16 03:30:03