Trace number 458169

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_v2 2007-03-23UNSAT 44.2663 44.2789

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/458169-1178619638/instance-458169-1178619638.opb ......
44.18/44.27	c done parsing opb.
44.18/44.27	s UNSATISFIABLE
44.18/44.27	c Total Run Time					44.2593

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458169-1178619638/instance-458169-1178619638.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node50/watcher-458169-1178619638 -o ROOT/results/node50/solver-458169-1178619638 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458169-1178619638/instance-458169-1178619638.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: 0.98 0.97 0.99 2/64 4187
/proc/meminfo: memFree=1808856/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=1320 CPUtime=0
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 216808973 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134557351 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 330 123 90 219 0 107 0

[startup+0.046443 s]
/proc/loadavg: 0.98 0.97 0.99 2/64 4187
/proc/meminfo: memFree=1808856/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=1320 CPUtime=0.04
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 168 0 0 0 4 0 0 0 18 0 1 0 216808973 1351680 150 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 330 150 90 219 0 107 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1320

[startup+0.101448 s]
/proc/loadavg: 0.98 0.97 0.99 2/64 4187
/proc/meminfo: memFree=1808856/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=1456 CPUtime=0.09
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 214 0 0 0 9 0 0 0 18 0 1 0 216808973 1490944 196 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 364 196 90 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301465 s]
/proc/loadavg: 0.98 0.97 0.99 2/64 4187
/proc/meminfo: memFree=1808856/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=2388 CPUtime=0.29
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 321 0 0 0 29 0 0 0 19 0 1 0 216808973 2445312 303 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 597 303 90 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.7015 s]
/proc/loadavg: 0.98 0.97 0.99 2/64 4187
/proc/meminfo: memFree=1808856/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=3608 CPUtime=0.69
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 531 0 0 0 69 0 0 0 22 0 1 0 216808973 3694592 513 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 902 513 90 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.50157 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1806608/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=5980 CPUtime=1.49
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 878 0 0 0 149 0 0 0 25 0 1 0 216808973 6123520 811 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 1495 811 90 219 0 1272 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5980

[startup+3.10171 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1805072/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=6776 CPUtime=3.09
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 1399 0 0 0 308 1 0 0 25 0 1 0 216808973 6938624 1235 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 1694 1235 90 219 0 1471 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6776

[startup+6.30199 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1802448/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=11420 CPUtime=6.29
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 1923 0 0 0 625 4 0 0 25 0 1 0 216808973 11694080 1759 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 2855 1759 90 219 0 2632 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11420

[startup+12.7016 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1798040/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=13060 CPUtime=12.68
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 3080 0 0 0 1261 7 0 0 25 0 1 0 216808973 13373440 2723 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 3265 2723 90 219 0 3042 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13060

[startup+25.5017 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1795680/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=16160 CPUtime=25.48
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 4060 0 0 0 2538 10 0 0 25 0 1 0 216808973 16547840 3318 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 4040 3318 90 219 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+31.9042 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1794272/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=16992 CPUtime=31.89
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 4424 0 0 0 3177 12 0 0 25 0 1 0 216808973 17399808 3682 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 4248 3682 90 219 0 4025 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 16992

[startup+38.3018 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1793440/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=17896 CPUtime=38.28
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 4696 0 0 0 3815 13 0 0 25 0 1 0 216808973 18325504 3954 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 4474 3954 90 219 0 4251 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 17896

[startup+41.5011 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1792864/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=17896 CPUtime=41.48
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 4761 0 0 0 4134 14 0 0 25 0 1 0 216808973 18325504 4019 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 4474 4019 90 219 0 4251 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 17896

[startup+43.1012 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1792672/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=18048 CPUtime=43.08
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 4813 0 0 0 4294 14 0 0 25 0 1 0 216808973 18481152 4071 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 4512 4071 90 219 0 4289 0
Current children cumulated CPU time (s) 43.08
Current children cumulated vsize (KiB) 18048

[startup+43.9013 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1792608/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=18048 CPUtime=43.88
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 4822 0 0 0 4374 14 0 0 25 0 1 0 216808973 18481152 4080 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 4512 4080 90 219 0 4289 0
Current children cumulated CPU time (s) 43.88
Current children cumulated vsize (KiB) 18048

[startup+44.1013 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1792608/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=18048 CPUtime=44.08
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 4824 0 0 0 4394 14 0 0 25 0 1 0 216808973 18481152 4082 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 4512 4082 90 219 0 4289 0
Current children cumulated CPU time (s) 44.08
Current children cumulated vsize (KiB) 18048

[startup+44.2013 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4188
/proc/meminfo: memFree=1792608/2055920 swapFree=4183852/4192956
[pid=4187] ppid=4185 vsize=18048 CPUtime=44.18
/proc/4187/stat : 4187 (PBS4_SAT07v2) R 4185 4187 2663 0 -1 4194304 4824 0 0 0 4404 14 0 0 25 0 1 0 216808973 18481152 4082 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4187/statm: 4512 4082 90 219 0 4289 0
Current children cumulated CPU time (s) 44.18
Current children cumulated vsize (KiB) 18048

Child status: 0
Real time (s): 44.2789
CPU time (s): 44.2663
CPU user time (s): 44.1143
CPU system time (s): 0.151976
CPU usage (%): 99.9714
Max. virtual memory (cumulated for all children) (KiB): 18048

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 44.1143
system time used= 0.151976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4842
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= 84

runsolver used 0.042993 second user time and 0.085986 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Tue May  8 10:20:38 UTC 2007

IDJOB= 458169
IDBENCH= 1246
IDSOLVER= 200
FILE ID= node50/458169-1178619638

PBS_JOBID= 5218236

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 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= PBS4_SAT07v2 /tmp/evaluation/458169-1178619638/instance-458169-1178619638.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node50/convwatcher-458169-1178619638 -o ROOT/results/node50/conversion-458169-1178619638 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458169-1178619638/instance-458169-1178619638.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-458169-1178619638 -o ROOT/results/node50/solver-458169-1178619638 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458169-1178619638/instance-458169-1178619638.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  48e5a0f80e1be044effaae28584b73c9

RANDOM SEED= 857275272

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node50.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:      2055920 kB
MemFree:       1809200 kB
Buffers:         18548 kB
Cached:         134344 kB
SwapCached:       3032 kB
Active:          34448 kB
Inactive:       128764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1809200 kB
SwapTotal:     4192956 kB
SwapFree:      4183852 kB
Dirty:            2272 kB
Writeback:           0 kB
Mapped:          16452 kB
Slab:            69472 kB
Committed_AS:  4939072 kB
PageTables:       1460 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= 66562 MiB

End job on node50 on Tue May  8 10:21:22 UTC 2007