Trace number 2655502

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 8.77866 8.78068

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111220019.opb
MD5SUMbea0618f5000a66b40afd2831998ebf2
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 benchmark0.159975
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 1259
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-2655502-1276260487.opb.
0.00/0.00	c Instance file HOME/instance-2655502-1276260487.opb
0.00/0.00	c File size is 9907 bytes.
0.00/0.00	c Highest Coefficient sum: 1259
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 |       101 |     169      101     1205 |     5500      101     15 |  0.004 % |
0.00/0.01	c |       251 |     169      101     1205 |     6050      251     21 |  0.004 % |
0.00/0.02	c |       476 |     169      101     1205 |     6655      476     20 |  0.004 % |
0.00/0.04	c |       813 |     169      101     1205 |     7320      813     21 |  0.004 % |
0.00/0.06	c |      1319 |     169      101     1205 |     8052     1319     20 |  0.004 % |
0.09/0.10	c |      2078 |     169      101     1205 |     8857     2078     21 |  0.004 % |
0.09/0.18	c |      3219 |     169      101     1205 |     9743     3219     23 |  0.004 % |
0.29/0.32	c |      4927 |     169      101     1205 |    10717     4927     22 |  0.004 % |
0.49/0.55	c |      7491 |     169      101     1205 |    11789     7491     21 |  0.004 % |
0.89/0.98	c |     11336 |     169      101     1205 |    12968    11336     23 |  0.004 % |
1.59/1.69	c |     17107 |     169      101     1205 |    14265    10578     25 |  0.004 % |
2.79/2.87	c |     25757 |     169      101     1205 |    15692    12029     23 |  0.004 % |
4.49/4.54	c |     38733 |     169      101     1205 |    17261     9227     20 |  0.004 % |
7.19/7.25	c |     58195 |     169      101     1205 |    18987    11327     18 |  0.004 % |
8.69/8.77	c ===============================================================================
8.69/8.77	c core #1
8.69/8.77	c Memory used           : 14.18 MB
8.69/8.77	c CPU time              : 8.59769 s
8.69/8.77	c 
8.69/8.77	s UNSATISFIABLE
8.69/8.77	c Total CPU time: 8.59769 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-2655502-1276260487/watcher-2655502-1276260487 -o /tmp/evaluation-result-2655502-1276260487/solver-2655502-1276260487 -C 1800 -W 2000 -M 1800 wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655502-1276260487.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: 0.81 0.28 0.10 3/106 3582
/proc/meminfo: memFree=1613840/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=2568 CPUtime=0
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 275 0 0 0 0 0 0 0 20 0 1 0 2034512 2629632 191 1992294400 134512640 135751879 4287550768 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 642 191 142 303 0 337 0

[startup+0.095329 s]
/proc/loadavg: 0.81 0.28 0.10 3/106 3582
/proc/meminfo: memFree=1613840/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=2836 CPUtime=0.08
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 356 0 0 0 8 0 0 0 20 0 1 0 2034512 2904064 272 1992294400 134512640 135751879 4287550768 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 709 272 143 303 0 404 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2836

[startup+0.101329 s]
/proc/loadavg: 0.81 0.28 0.10 3/106 3582
/proc/meminfo: memFree=1613840/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=2836 CPUtime=0.09
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 361 0 0 0 9 0 0 0 20 0 1 0 2034512 2904064 277 1992294400 134512640 135751879 4287550768 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 709 277 143 303 0 404 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2836

[startup+0.301356 s]
/proc/loadavg: 0.81 0.28 0.10 3/106 3582
/proc/meminfo: memFree=1613840/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=3364 CPUtime=0.29
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 487 0 0 0 28 1 0 0 20 0 1 0 2034512 3444736 403 1992294400 134512640 135751879 4287550768 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 841 404 143 303 0 536 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3364

[startup+0.701412 s]
/proc/loadavg: 0.81 0.28 0.10 3/106 3582
/proc/meminfo: memFree=1613840/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=4156 CPUtime=0.69
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 681 0 0 0 68 1 0 0 20 0 1 0 2034512 4255744 597 1992294400 134512640 135751879 4287550768 18446744073709551615 134616876 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 1039 597 143 303 0 734 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4156

[startup+1.50152 s]
/proc/loadavg: 0.82 0.29 0.10 2/107 3583
/proc/meminfo: memFree=1611352/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=5380 CPUtime=1.49
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 996 0 0 0 146 3 0 0 23 0 1 0 2034512 5509120 912 1992294400 134512640 135751879 4287550768 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 1345 912 143 303 0 1040 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5380

[startup+3.10074 s]
/proc/loadavg: 0.82 0.29 0.10 2/107 3583
/proc/meminfo: memFree=1609616/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=7756 CPUtime=3.09
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 1566 0 0 0 302 7 0 0 25 0 1 0 2034512 7942144 1482 1992294400 134512640 135751879 4287550768 18446744073709551615 134616336 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 1939 1482 143 303 0 1634 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7756

[startup+6.30118 s]
/proc/loadavg: 0.84 0.30 0.11 2/107 3583
/proc/meminfo: memFree=1605028/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=11856 CPUtime=6.29
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 2603 0 0 0 617 12 0 0 25 0 1 0 2034512 12140544 2519 1992294400 134512640 135751879 4287550768 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 2964 2519 143 303 0 2659 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11856

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

[startup+7.9014 s]
/proc/loadavg: 0.84 0.30 0.11 2/107 3583
/proc/meminfo: memFree=1602548/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=13580 CPUtime=7.89
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 3053 0 0 0 773 16 0 0 25 0 1 0 2034512 13905920 2969 1992294400 134512640 135751879 4287550768 18446744073709551615 134616714 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 3395 2969 143 303 0 3090 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 13580

[startup+8.30145 s]
/proc/loadavg: 0.84 0.30 0.11 2/107 3583
/proc/meminfo: memFree=1602548/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=14124 CPUtime=8.29
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 3153 0 0 0 813 16 0 0 25 0 1 0 2034512 14462976 3069 1992294400 134512640 135751879 4287550768 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 3531 3069 143 303 0 3226 0
Current children cumulated CPU time (s) 8.29
Current children cumulated vsize (KiB) 14124

[startup+8.7015 s]
/proc/loadavg: 0.84 0.30 0.11 2/107 3583
/proc/meminfo: memFree=1601556/2059040 swapFree=4192956/4192956
[pid=3582] ppid=3580 vsize=14388 CPUtime=8.69
/proc/3582/stat : 3582 (wbo1.4a) R 3580 3582 3419 0 -1 4202496 3241 0 0 0 852 17 0 0 25 0 1 0 2034512 14733312 3157 1992294400 134512640 135751879 4287550768 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/3582/statm: 3597 3157 143 303 0 3292 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 14388

Child status: 0
Real time (s): 8.78068
CPU time (s): 8.77866
CPU user time (s): 8.59769
CPU system time (s): 0.180972
CPU usage (%): 99.9771
Max. virtual memory (cumulated for all children) (KiB): 14388

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.59769
system time used= 0.180972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3266
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= 103

runsolver used 0.013997 second user time and 0.055991 second system time

The end

Launcher Data 

Begin job on node013 at 2010-06-11 14:48:07
IDJOB=2655502
IDBENCH=1268
IDSOLVER=1160
FILE ID=node013/2655502-1276260487
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-t2001.13queen13.1111220019.opb
COMMAND LINE= wbo1.4a -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2655502-1276260487/watcher-2655502-1276260487 -o /tmp/evaluation-result-2655502-1276260487/solver-2655502-1276260487 -C 1800 -W 2000 -M 1800  wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655502-1276260487.opb

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

MD5SUM BENCH= bea0618f5000a66b40afd2831998ebf2
RANDOM SEED=172164134

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:       1614368 kB
Buffers:         40208 kB
Cached:         279600 kB
SwapCached:          0 kB
Active:         140832 kB
Inactive:       238080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1614368 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2992 kB
Writeback:           0 kB
AnonPages:       59096 kB
Mapped:          15384 kB
Slab:            44072 kB
PageTables:       4048 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   177992 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 14:48:16