Trace number 358741

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, and are wall clock time (not CPU 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
PBS4 2007-03-23UNSAT 23.8574 23.8676

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111225122.opb
MD5SUMa269d12d155d81b32a77ae75b8c56536
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.184971
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 1250
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 (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/358741-1176917293/instance-358741-1176917293.opb ......
23.78/23.86	c done parsing opb.
23.78/23.86	s UNSATISFIABLE
23.78/23.86	c Total Run Time					23.8504

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358741-1176917293/instance-358741-1176917293.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node38/watcher-358741-1176917293 -o ROOT/results/node38/solver-358741-1176917293 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358741-1176917293/PBS4 /tmp/evaluation/358741-1176917293/instance-358741-1176917293.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.61 0.96 0.97 3/77 21349
/proc/meminfo: memFree=1426144/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=1320 CPUtime=0
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 123895987 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 330 126 92 219 0 107 0

[startup+0.0390859 s]
/proc/loadavg: 0.61 0.96 0.97 3/77 21349
/proc/meminfo: memFree=1426144/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=1320 CPUtime=0.03
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 172 0 0 0 3 0 0 0 18 0 1 0 123895987 1351680 154 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 330 154 92 219 0 107 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1320

[startup+0.101097 s]
/proc/loadavg: 0.61 0.96 0.97 3/77 21349
/proc/meminfo: memFree=1426144/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=1452 CPUtime=0.09
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 218 0 0 0 9 0 0 0 18 0 1 0 123895987 1486848 200 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 363 200 92 219 0 140 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1452

[startup+0.301135 s]
/proc/loadavg: 0.61 0.96 0.97 3/77 21349
/proc/meminfo: memFree=1426144/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=2376 CPUtime=0.29
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 348 0 0 0 29 0 0 0 19 0 1 0 123895987 2433024 330 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 594 330 93 219 0 371 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2376

[startup+0.701212 s]
/proc/loadavg: 0.61 0.96 0.97 3/77 21349
/proc/meminfo: memFree=1426144/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=3596 CPUtime=0.69
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 547 0 0 0 69 0 0 0 22 0 1 0 123895987 3682304 529 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 899 529 93 219 0 676 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3596

[startup+1.50137 s]
/proc/loadavg: 0.61 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1423832/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=5996 CPUtime=1.49
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 898 0 0 0 148 1 0 0 25 0 1 0 123895987 6139904 831 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 1499 831 94 219 0 1276 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5996

[startup+3.10167 s]
/proc/loadavg: 0.61 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1422360/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=6776 CPUtime=3.09
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 1362 0 0 0 307 2 0 0 25 0 1 0 123895987 6938624 1198 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134559469 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 1694 1198 94 219 0 1471 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6776

[startup+6.30129 s]
/proc/loadavg: 0.64 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1419352/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=11428 CPUtime=6.28
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 2037 0 0 0 626 2 0 0 25 0 1 0 123895987 11702272 1873 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 2857 1873 94 219 0 2634 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 11428

[startup+12.7015 s]
/proc/loadavg: 0.67 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1415512/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=13328 CPUtime=12.69
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 3061 0 0 0 1264 5 0 0 25 0 1 0 123895987 13647872 2704 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 3332 2704 94 219 0 3109 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13328

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

[startup+19.1018 s]
/proc/loadavg: 0.70 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1414104/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=15604 CPUtime=19.08
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 3725 0 0 0 1902 6 0 0 25 0 1 0 123895987 15978496 2983 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 3901 2983 94 219 0 3678 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15604

[startup+22.3014 s]
/proc/loadavg: 0.72 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1413528/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=16052 CPUtime=22.28
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 3890 0 0 0 2221 7 0 0 25 0 1 0 123895987 16437248 3148 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 4013 3148 94 219 0 3790 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 16052

[startup+23.1065 s]
/proc/loadavg: 0.72 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1413400/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=16052 CPUtime=23.09
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 3911 0 0 0 2302 7 0 0 25 0 1 0 123895987 16437248 3169 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134559751 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 4013 3169 94 219 0 3790 0
Current children cumulated CPU time (s) 23.09
Current children cumulated vsize (KiB) 16052

[startup+23.5016 s]
/proc/loadavg: 0.72 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1413400/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=16052 CPUtime=23.48
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 3916 0 0 0 2341 7 0 0 25 0 1 0 123895987 16437248 3174 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547071 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 4013 3174 94 219 0 3790 0
Current children cumulated CPU time (s) 23.48
Current children cumulated vsize (KiB) 16052

[startup+23.7016 s]
/proc/loadavg: 0.72 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1413400/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=16408 CPUtime=23.68
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 4002 0 0 0 2361 7 0 0 25 0 1 0 123895987 16801792 3260 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547142 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 4102 3260 94 219 0 3879 0
Current children cumulated CPU time (s) 23.68
Current children cumulated vsize (KiB) 16408

[startup+23.8017 s]
/proc/loadavg: 0.72 0.96 0.97 2/78 21350
/proc/meminfo: memFree=1413400/2055920 swapFree=4159700/4192956
[pid=21349] ppid=21347 vsize=16408 CPUtime=23.78
/proc/21349/stat : 21349 (PBS4) R 21347 21349 21287 0 -1 4194304 4004 0 0 0 2371 7 0 0 25 0 1 0 123895987 16801792 3262 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547300 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21349/statm: 4102 3262 94 219 0 3879 0
Current children cumulated CPU time (s) 23.78
Current children cumulated vsize (KiB) 16408

Child status: 0
Real time (s): 23.8676
CPU time (s): 23.8574
CPU user time (s): 23.7764
CPU system time (s): 0.080987
CPU usage (%): 99.957
Max. virtual memory (cumulated for all children) (KiB): 16408

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.7764
system time used= 0.080987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4020
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= 8
involuntary context switches= 44

runsolver used 0.030995 second user time and 0.06399 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Wed Apr 18 17:28:13 UTC 2007

IDJOB= 358741
IDBENCH= 1236
IDSOLVER= 157
FILE ID= node38/358741-1176917293

PBS_JOBID= 4605647

Free space on /tmp= 66242 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111225122.opb
COMMAND LINE= /tmp/evaluation/358741-1176917293/PBS4 /tmp/evaluation/358741-1176917293/instance-358741-1176917293.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node38/convwatcher-358741-1176917293 -o ROOT/results/node38/conversion-358741-1176917293 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358741-1176917293/instance-358741-1176917293.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-358741-1176917293 -o ROOT/results/node38/solver-358741-1176917293 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358741-1176917293/PBS4 /tmp/evaluation/358741-1176917293/instance-358741-1176917293.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  a269d12d155d81b32a77ae75b8c56536

RANDOM SEED= 643708879

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.263
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		: 3000.263
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:       1426552 kB
Buffers:         33376 kB
Cached:         494020 kB
SwapCached:       3208 kB
Active:         143444 kB
Inactive:       441480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1426552 kB
SwapTotal:     4192956 kB
SwapFree:      4159700 kB
Dirty:            1340 kB
Writeback:           0 kB
Mapped:          65728 kB
Slab:            29688 kB
Committed_AS:  1516132 kB
PageTables:       2060 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= 66242 MiB

End job on node38 on Wed Apr 18 17:28:37 UTC 2007