Trace number 358881

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 44.5152 44.5268

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110973163.opb
MD5SUM48e5a0f80e1be044effaae28584b73c9
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 benchmark0.05699
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 1215
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/358881-1176918241/instance-358881-1176918241.opb ......
44.48/44.52	c done parsing opb.
44.48/44.52	s UNSATISFIABLE
44.48/44.52	c Total Run Time					44.5072

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358881-1176918241/instance-358881-1176918241.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/node6/watcher-358881-1176918241 -o ROOT/results/node6/solver-358881-1176918241 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358881-1176918241/PBS4 /tmp/evaluation/358881-1176918241/instance-358881-1176918241.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: 0.91 0.95 0.96 3/77 29376
/proc/meminfo: memFree=1339960/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=1320 CPUtime=0
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 167861763 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 330 125 92 219 0 107 0

[startup+0.10128 s]
/proc/loadavg: 0.91 0.95 0.96 3/77 29376
/proc/meminfo: memFree=1339960/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=1456 CPUtime=0.09
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 216 0 0 0 9 0 0 0 18 0 1 0 167861763 1490944 198 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 364 198 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.201291 s]
/proc/loadavg: 0.91 0.95 0.96 3/77 29376
/proc/meminfo: memFree=1339960/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=1876 CPUtime=0.19
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 284 0 0 0 19 0 0 0 18 0 1 0 167861763 1921024 266 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596458 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 469 266 93 219 0 246 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1876

[startup+0.301303 s]
/proc/loadavg: 0.91 0.95 0.96 3/77 29376
/proc/meminfo: memFree=1339960/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=2388 CPUtime=0.29
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 324 0 0 0 29 0 0 0 19 0 1 0 167861763 2445312 306 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 597 306 93 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.701349 s]
/proc/loadavg: 0.91 0.95 0.96 3/77 29376
/proc/meminfo: memFree=1339960/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=3608 CPUtime=0.69
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 533 0 0 0 69 0 0 0 23 0 1 0 167861763 3694592 515 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 902 515 93 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.50144 s]
/proc/loadavg: 0.91 0.95 0.96 2/78 29377
/proc/meminfo: memFree=1337392/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=5980 CPUtime=1.49
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 882 0 0 0 148 1 0 0 25 0 1 0 167861763 6123520 815 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134585680 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 1495 815 94 219 0 1272 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5980

[startup+3.10163 s]
/proc/loadavg: 0.91 0.95 0.96 2/78 29377
/proc/meminfo: memFree=1336112/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=6776 CPUtime=3.09
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 1401 0 0 0 307 2 0 0 25 0 1 0 167861763 6938624 1237 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 1694 1237 94 219 0 1471 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6776

[startup+6.30201 s]
/proc/loadavg: 0.92 0.95 0.96 2/78 29377
/proc/meminfo: memFree=1333552/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=11420 CPUtime=6.29
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 1923 0 0 0 626 3 0 0 25 0 1 0 167861763 11694080 1759 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 2855 1759 94 219 0 2632 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11420

[startup+12.7018 s]
/proc/loadavg: 0.93 0.95 0.96 2/78 29377
/proc/meminfo: memFree=1329136/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=13060 CPUtime=12.69
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 3084 0 0 0 1264 5 0 0 25 0 1 0 167861763 13373440 2727 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134549696 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 3265 2727 94 219 0 3042 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13060

[startup+25.5013 s]
/proc/loadavg: 0.94 0.96 0.96 2/78 29377
/proc/meminfo: memFree=1326704/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=16160 CPUtime=25.48
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 4063 0 0 0 2540 8 0 0 25 0 1 0 167861763 16547840 3321 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 4040 3321 94 219 0 3817 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16160

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

[startup+25.6013 s]
/proc/loadavg: 0.94 0.96 0.96 2/78 29377
/proc/meminfo: memFree=1326704/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=16160 CPUtime=25.58
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 4064 0 0 0 2550 8 0 0 25 0 1 0 167861763 16547840 3322 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 4040 3322 94 219 0 3817 0
Current children cumulated CPU time (s) 25.58
Current children cumulated vsize (KiB) 16160

[startup+32.006 s]
/proc/loadavg: 0.95 0.96 0.96 2/78 29377
/proc/meminfo: memFree=1325296/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=16832 CPUtime=31.99
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 4423 0 0 0 3189 10 0 0 25 0 1 0 167861763 17235968 3681 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134549582 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 4208 3681 94 219 0 3985 0
Current children cumulated CPU time (s) 31.99
Current children cumulated vsize (KiB) 16832

[startup+38.4018 s]
/proc/loadavg: 0.95 0.96 0.96 2/78 29377
/proc/meminfo: memFree=1324528/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=17896 CPUtime=38.38
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 4699 0 0 0 3827 11 0 0 25 0 1 0 167861763 18325504 3957 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 4474 3957 94 219 0 4251 0
Current children cumulated CPU time (s) 38.38
Current children cumulated vsize (KiB) 17896

[startup+41.6011 s]
/proc/loadavg: 0.95 0.96 0.96 2/78 29377
/proc/meminfo: memFree=1324016/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=17896 CPUtime=41.58
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 4764 0 0 0 4146 12 0 0 25 0 1 0 167861763 18325504 4022 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 4474 4022 94 219 0 4251 0
Current children cumulated CPU time (s) 41.58
Current children cumulated vsize (KiB) 17896

[startup+43.2013 s]
/proc/loadavg: 0.96 0.96 0.96 2/78 29377
/proc/meminfo: memFree=1323696/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=18048 CPUtime=43.18
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 4813 0 0 0 4306 12 0 0 25 0 1 0 167861763 18481152 4071 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 4512 4071 94 219 0 4289 0
Current children cumulated CPU time (s) 43.18
Current children cumulated vsize (KiB) 18048

[startup+44.0014 s]
/proc/loadavg: 0.96 0.96 0.96 2/78 29377
/proc/meminfo: memFree=1323632/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=18048 CPUtime=43.98
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 4825 0 0 0 4386 12 0 0 25 0 1 0 167861763 18481152 4083 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 4512 4083 94 219 0 4289 0
Current children cumulated CPU time (s) 43.98
Current children cumulated vsize (KiB) 18048

[startup+44.4015 s]
/proc/loadavg: 0.96 0.96 0.96 2/78 29377
/proc/meminfo: memFree=1323632/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=18048 CPUtime=44.38
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 4828 0 0 0 4426 12 0 0 25 0 1 0 167861763 18481152 4086 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 4512 4086 94 219 0 4289 0
Current children cumulated CPU time (s) 44.38
Current children cumulated vsize (KiB) 18048

[startup+44.5015 s]
/proc/loadavg: 0.96 0.96 0.96 2/78 29377
/proc/meminfo: memFree=1323632/2055924 swapFree=4141328/4192956
[pid=29376] ppid=29374 vsize=18048 CPUtime=44.48
/proc/29376/stat : 29376 (PBS4) R 29374 29376 28776 0 -1 4194304 4829 0 0 0 4436 12 0 0 25 0 1 0 167861763 18481152 4087 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29376/statm: 4512 4087 94 219 0 4289 0
Current children cumulated CPU time (s) 44.48
Current children cumulated vsize (KiB) 18048

Child status: 0
Real time (s): 44.5268
CPU time (s): 44.5152
CPU user time (s): 44.3853
CPU system time (s): 0.12998
CPU usage (%): 99.9741
Max. virtual memory (cumulated for all children) (KiB): 18048

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 44.3853
system time used= 0.12998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4844
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= 7
involuntary context switches= 911

runsolver used 0.05999 second user time and 0.100984 second system time

The end

Launcher Data (download as text)

Begin job on node6 on Wed Apr 18 17:44:01 UTC 2007

IDJOB= 358881
IDBENCH= 1246
IDSOLVER= 157
FILE ID= node6/358881-1176918241

PBS_JOBID= 4595251

Free space on /tmp= 66418 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110973163.opb
COMMAND LINE= /tmp/evaluation/358881-1176918241/PBS4 /tmp/evaluation/358881-1176918241/instance-358881-1176918241.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node6/convwatcher-358881-1176918241 -o ROOT/results/node6/conversion-358881-1176918241 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358881-1176918241/instance-358881-1176918241.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-358881-1176918241 -o ROOT/results/node6/solver-358881-1176918241 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358881-1176918241/PBS4 /tmp/evaluation/358881-1176918241/instance-358881-1176918241.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  48e5a0f80e1be044effaae28584b73c9

RANDOM SEED= 657049882

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.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		: 3000.232
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		: 3000.232
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:      2055924 kB
MemFree:       1340368 kB
Buffers:         35432 kB
Cached:         609748 kB
SwapCached:      18976 kB
Active:         273632 kB
Inactive:       400184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1340368 kB
SwapTotal:     4192956 kB
SwapFree:      4141328 kB
Dirty:            1164 kB
Writeback:           0 kB
Mapped:          30348 kB
Slab:            27344 kB
Committed_AS:  6875012 kB
PageTables:       1784 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= 66418 MiB

End job on node6 on Wed Apr 18 17:44:46 UTC 2007