Trace number 2655481

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 1.4aUNSAT 3.57846 3.5798

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111226368.opb
MD5SUMb01ebef74b04e5bd139a4b864d0981a6
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 benchmark0.05799
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 1270
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 wbo 1.4 beta - 20100517
0.00/0.00	c Parsing opb file format. File HOME/instance-2655481-1276260470.opb.
0.00/0.00	c Instance file HOME/instance-2655481-1276260470.opb
0.00/0.00	c File size is 9909 bytes.
0.00/0.00	c Highest Coefficient sum: 1270
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 |       100 |     169      101     1205 |     5500      100     12 |  0.004 % |
0.00/0.01	c |       252 |     169      101     1205 |     6050      252     19 |  0.004 % |
0.00/0.02	c |       478 |     169      101     1205 |     6655      478     23 |  0.004 % |
0.00/0.04	c |       819 |     169      101     1205 |     7320      819     25 |  0.004 % |
0.06/0.07	c |      1326 |     169      101     1205 |     8052     1326     23 |  0.004 % |
0.09/0.11	c |      2086 |     169      101     1205 |     8857     2086     22 |  0.004 % |
0.09/0.19	c |      3225 |     169      101     1205 |     9743     3225     22 |  0.004 % |
0.29/0.31	c |      4933 |     169      101     1205 |    10717     4933     21 |  0.004 % |
0.49/0.52	c |      7495 |     169      101     1205 |    11789     7495     21 |  0.004 % |
0.89/0.97	c |     11341 |     169      101     1205 |    12968    11341     21 |  0.004 % |
1.59/1.62	c |     17109 |     169      101     1205 |    14265    10571     19 |  0.004 % |
2.49/2.54	c |     25758 |     169      101     1205 |    15692    12049     17 |  0.004 % |
3.49/3.57	c ===============================================================================
3.49/3.57	c core #1
3.49/3.57	c Memory used           : 8.19 MB
3.49/3.57	c CPU time              : 3.49347 s
3.49/3.57	c 
3.49/3.57	s UNSATISFIABLE
3.49/3.57	c Total CPU time: 3.49447 s

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-2655481-1276260470/watcher-2655481-1276260470 -o /tmp/evaluation-result-2655481-1276260470/solver-2655481-1276260470 -C 1800 -W 2000 -M 1800 wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655481-1276260470.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: 0.76 0.24 0.08 3/106 3474
/proc/meminfo: memFree=1614272/2059040 swapFree=4192956/4192956
[pid=3474] ppid=3472 vsize=2568 CPUtime=0
/proc/3474/stat : 3474 (wbo1.4a) R 3472 3474 3419 0 -1 4202496 277 0 0 0 0 0 0 0 20 0 1 0 2032779 2629632 193 1992294400 134512640 135751879 4288795536 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3474/statm: 642 194 143 303 0 337 0

[startup+0.0705269 s]
/proc/loadavg: 0.76 0.24 0.08 3/106 3474
/proc/meminfo: memFree=1614272/2059040 swapFree=4192956/4192956
[pid=3474] ppid=3472 vsize=2700 CPUtime=0.06
/proc/3474/stat : 3474 (wbo1.4a) R 3472 3474 3419 0 -1 4202496 334 0 0 0 6 0 0 0 20 0 1 0 2032779 2764800 250 1992294400 134512640 135751879 4288795536 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3474/statm: 675 250 143 303 0 370 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2700

[startup+0.101531 s]
/proc/loadavg: 0.76 0.24 0.08 3/106 3474
/proc/meminfo: memFree=1614272/2059040 swapFree=4192956/4192956
[pid=3474] ppid=3472 vsize=2832 CPUtime=0.09
/proc/3474/stat : 3474 (wbo1.4a) R 3472 3474 3419 0 -1 4202496 356 0 0 0 9 0 0 0 20 0 1 0 2032779 2899968 272 1992294400 134512640 135751879 4288795536 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3474/statm: 708 272 143 303 0 403 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2832

[startup+0.301557 s]
/proc/loadavg: 0.76 0.24 0.08 3/106 3474
/proc/meminfo: memFree=1614272/2059040 swapFree=4192956/4192956
[pid=3474] ppid=3472 vsize=3360 CPUtime=0.29
/proc/3474/stat : 3474 (wbo1.4a) R 3472 3474 3419 0 -1 4202496 493 0 0 0 28 1 0 0 20 0 1 0 2032779 3440640 409 1992294400 134512640 135751879 4288795536 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3474/statm: 840 409 143 303 0 535 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3360

[startup+0.701613 s]
/proc/loadavg: 0.76 0.24 0.08 3/106 3474
/proc/meminfo: memFree=1614272/2059040 swapFree=4192956/4192956
[pid=3474] ppid=3472 vsize=4284 CPUtime=0.69
/proc/3474/stat : 3474 (wbo1.4a) R 3472 3474 3419 0 -1 4202496 701 0 0 0 67 2 0 0 21 0 1 0 2032779 4386816 617 1992294400 134512640 135751879 4288795536 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3474/statm: 1071 617 143 303 0 766 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4284

[startup+1.50172 s]
/proc/loadavg: 0.76 0.24 0.08 2/107 3475
/proc/meminfo: memFree=1611908/2059040 swapFree=4192956/4192956
[pid=3474] ppid=3472 vsize=5472 CPUtime=1.49
/proc/3474/stat : 3474 (wbo1.4a) R 3472 3474 3419 0 -1 4202496 998 0 0 0 145 4 0 0 23 0 1 0 2032779 5603328 914 1992294400 134512640 135751879 4288795536 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3474/statm: 1368 914 143 303 0 1063 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5472

[startup+3.10094 s]
/proc/loadavg: 0.76 0.24 0.08 2/107 3475
/proc/meminfo: memFree=1610172/2059040 swapFree=4192956/4192956
[pid=3474] ppid=3472 vsize=7720 CPUtime=3.09
/proc/3474/stat : 3474 (wbo1.4a) R 3472 3474 3419 0 -1 4202496 1587 0 0 0 302 7 0 0 25 0 1 0 2032779 7905280 1503 1992294400 134512640 135751879 4288795536 18446744073709551615 134616334 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3474/statm: 1930 1503 143 303 0 1625 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7720

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

[startup+3.501 s]
/proc/loadavg: 0.77 0.26 0.09 2/107 3475
/proc/meminfo: memFree=1608312/2059040 swapFree=4192956/4192956
[pid=3474] ppid=3472 vsize=8380 CPUtime=3.49
/proc/3474/stat : 3474 (wbo1.4a) R 3472 3474 3419 0 -1 4202496 1732 0 0 0 341 8 0 0 25 0 1 0 2032779 8581120 1648 1992294400 134512640 135751879 4288795536 18446744073709551615 134616448 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3474/statm: 2095 1648 143 303 0 1790 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 8380

Child status: 0
Real time (s): 3.5798
CPU time (s): 3.57846
CPU user time (s): 3.49447
CPU system time (s): 0.083987
CPU usage (%): 99.9623
Max. virtual memory (cumulated for all children) (KiB): 8380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.49447
system time used= 0.083987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1758
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= 1
involuntary context switches= 42

runsolver used 0.010998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node013 at 2010-06-11 14:47:50
IDJOB=2655481
IDBENCH=1247
IDSOLVER=1160
FILE ID=node013/2655481-1276260470
PBS_JOBID= 11172198
Free space on /tmp= 62424 MiB

SOLVER NAME= wbo 1.4a
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111226368.opb
COMMAND LINE= wbo1.4a -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2655481-1276260470/watcher-2655481-1276260470 -o /tmp/evaluation-result-2655481-1276260470/solver-2655481-1276260470 -C 1800 -W 2000 -M 1800  wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655481-1276260470.opb

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

MD5SUM BENCH= b01ebef74b04e5bd139a4b864d0981a6
RANDOM SEED=844659824

node013.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.253
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.50
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		: 3000.253
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1614800 kB
Buffers:         40012 kB
Cached:         279584 kB
SwapCached:          0 kB
Active:         139692 kB
Inactive:       238944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1614800 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2604 kB
Writeback:           0 kB
AnonPages:       59068 kB
Mapped:          15356 kB
Slab:            43792 kB
PageTables:       3988 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   177712 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62424 MiB
End job on node013 at 2010-06-11 14:47:54