Trace number 1875885

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 12.1682 12.1721

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111221624.opb
MD5SUM1cbab9bec076c91ef9a04fed1aa2ec63
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 benchmark1.11783
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 1248
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-1875885-1245115853.opb.
0.00/0.00	c Instance file HOME/instance-1875885-1245115853.opb
0.00/0.00	c File size is 9904 bytes.
0.00/0.00	c Highest Coefficient sum: 1248
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 |       105 |     169      101     1205 |     5500      105     35 |  0.004 % |
0.00/0.01	c |       256 |     169      101     1205 |     6050      256     39 |  0.004 % |
0.00/0.02	c |       481 |     169      101     1205 |     6655      481     38 |  0.004 % |
0.00/0.04	c |       818 |     169      101     1205 |     7320      818     36 |  0.004 % |
0.00/0.07	c |      1325 |     169      101     1205 |     8052     1325     35 |  0.004 % |
0.09/0.11	c |      2086 |     169      101     1205 |     8857     2086     35 |  0.004 % |
0.09/0.19	c |      3225 |     169      101     1205 |     9743     3225     36 |  0.004 % |
0.29/0.34	c |      4934 |     169      101     1205 |    10717     4934     38 |  0.004 % |
0.49/0.58	c |      7497 |     169      101     1205 |    11789     7497     39 |  0.004 % |
0.99/1.04	c |     11342 |     169      101     1205 |    12968    11342     40 |  0.004 % |
1.70/1.77	c |     17109 |     169      101     1205 |    14265    10570     44 |  0.004 % |
2.99/3.02	c |     25758 |     169      101     1205 |    15692    12044     46 |  0.004 % |
4.99/5.08	c |     38733 |     169      101     1205 |    17261     9215     47 |  0.004 % |
8.18/8.26	c |     58194 |     169      101     1205 |    18987    11313     47 |  0.004 % |
11.39/11.40	c ===============================================================================
12.09/12.16	c core #1
12.09/12.16	c Core size: 99	Core Weight: 2147483647	Total Weight: 2147483647
12.09/12.16	c restarts              : 15
12.09/12.16	c conflicts             : 75250          (6269 /sec)
12.09/12.16	c decisions             : 104049         (1.16 % random) (8668 /sec)
12.09/12.16	c propagations          : 1486022        (123792 /sec)
12.09/12.16	c conflict literals     : 3548578        (0.00 % deleted)
12.09/12.16	c Memory used           : 30.91 MB
12.09/12.16	c CPU time              : 12.0042 s
12.09/12.16	c 
12.09/12.16	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-1875885-1245115853/watcher-1875885-1245115853 -o /tmp/evaluation-result-1875885-1245115853/solver-1875885-1245115853 -C 1800 -W 2000 -M 1800 wbo -file-format=opb -time-limit=1800 HOME/instance-1875885-1245115853.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 1.05 3/64 2038
/proc/meminfo: memFree=1424000/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=2524 CPUtime=0
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 201 0 0 0 0 0 0 0 18 0 1 0 179184934 2584576 182 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 631 182 134 292 0 336 0

[startup+0.00779206 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 2038
/proc/meminfo: memFree=1424000/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=2524 CPUtime=0
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 206 0 0 0 0 0 0 0 18 0 1 0 179184934 2584576 187 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 631 188 135 292 0 336 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2524

[startup+0.101799 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 2038
/proc/meminfo: memFree=1424000/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=3052 CPUtime=0.09
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 342 0 0 0 9 0 0 0 18 0 1 0 179184934 3125248 323 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 763 323 135 292 0 468 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3052

[startup+0.301818 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 2038
/proc/meminfo: memFree=1424000/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=3976 CPUtime=0.29
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 563 0 0 0 28 1 0 0 19 0 1 0 179184934 4071424 544 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 994 545 135 292 0 699 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3976

[startup+0.701859 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 2038
/proc/meminfo: memFree=1424000/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=5296 CPUtime=0.69
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 914 0 0 0 67 2 0 0 23 0 1 0 179184934 5423104 895 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 1324 895 135 292 0 1029 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5296

[startup+1.50194 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2039
/proc/meminfo: memFree=1420152/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=7540 CPUtime=1.49
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 1471 0 0 0 146 3 0 0 25 0 1 0 179184934 7720960 1452 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 1885 1452 135 292 0 1590 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7540

[startup+3.1011 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2039
/proc/meminfo: memFree=1417080/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=11504 CPUtime=3.09
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 2471 0 0 0 304 5 0 0 25 0 1 0 179184934 11780096 2452 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 2876 2452 135 292 0 2581 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11504

[startup+6.30143 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2039
/proc/meminfo: memFree=1409344/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=18632 CPUtime=6.29
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 4239 0 0 0 620 9 0 0 25 0 1 0 179184934 19079168 4220 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 4658 4220 135 292 0 4363 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18632

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

[startup+9.50175 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2039
/proc/meminfo: memFree=1402240/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=25372 CPUtime=9.49
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 5920 0 0 0 936 13 0 0 25 0 1 0 179184934 25980928 5901 1992294400 134512640 135709839 4294956240 18446744073709551615 134518513 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 6343 5901 135 292 0 6048 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 25372

[startup+11.1019 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2039
/proc/meminfo: memFree=1397832/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=28476 CPUtime=11.09
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 6710 0 0 0 1094 15 0 0 25 0 1 0 179184934 29159424 6691 1992294400 134512640 135709839 4294956240 18446744073709551615 135232529 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 7119 6691 135 292 0 6824 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 28476

[startup+11.902 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2039
/proc/meminfo: memFree=1397832/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=31644 CPUtime=11.88
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 7500 0 0 0 1173 15 0 0 25 0 1 0 179184934 32403456 7481 1992294400 134512640 135709839 4294956240 18446744073709551615 134584114 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 7911 7481 136 292 0 7616 0
Current children cumulated CPU time (s) 11.88
Current children cumulated vsize (KiB) 31644

[startup+12.107 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2039
/proc/meminfo: memFree=1394312/2055920 swapFree=4192812/4192956
[pid=2038] ppid=2036 vsize=31644 CPUtime=12.09
/proc/2038/stat : 2038 (wbo) R 2036 2038 1525 0 -1 4194304 7500 0 0 0 1194 15 0 0 25 0 1 0 179184934 32403456 7481 1992294400 134512640 135709839 4294956240 18446744073709551615 134583730 0 0 4096 3 0 0 0 17 0 0 0
/proc/2038/statm: 7911 7481 136 292 0 7616 0
Current children cumulated CPU time (s) 12.09
Current children cumulated vsize (KiB) 31644

Child status: 0
Real time (s): 12.1721
CPU time (s): 12.1682
CPU user time (s): 12.0042
CPU system time (s): 0.163975
CPU usage (%): 99.9673
Max. virtual memory (cumulated for all children) (KiB): 31644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.0042
system time used= 0.163975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7502
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= 43

runsolver used 0.010998 second user time and 0.042993 second system time

The end

Launcher Data 

Begin job on node27 at 2009-06-16 03:30:53
IDJOB=1875885
IDBENCH=1244
IDSOLVER=698
FILE ID=node27/1875885-1245115853
PBS_JOBID= 9363660
Free space on /tmp= 66288 MiB

SOLVER NAME= wbo 1.0
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111221624.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-1875885-1245115853/watcher-1875885-1245115853 -o /tmp/evaluation-result-1875885-1245115853/solver-1875885-1245115853 -C 1800 -W 2000 -M 1800  wbo -file-format=opb -time-limit=1800 HOME/instance-1875885-1245115853.opb

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

MD5SUM BENCH= 1cbab9bec076c91ef9a04fed1aa2ec63
RANDOM SEED=446257962

node27.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		: 2800.234
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	: 5521.40
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		: 2800.234
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:       1424544 kB
Buffers:         63268 kB
Cached:         484672 kB
SwapCached:        140 kB
Active:         139420 kB
Inactive:       423016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1424544 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2380 kB
Writeback:           0 kB
Mapped:          24204 kB
Slab:            54848 kB
Committed_AS:   144372 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1875885-1245115853.opb

Free space on /tmp at the end= 66288 MiB
End job on node27 at 2009-06-16 03:31:05