Trace number 458162

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 46.6969 46.7102

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110978113.opb
MD5SUM99201112dfecb8b8483aa9e53b3784e0
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 benchmark1.25281
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 1184
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/458162-1178619590/instance-458162-1178619590.opb ......
46.68/46.70	c done parsing opb.
46.68/46.70	s UNSATISFIABLE
46.68/46.70	c Total Run Time					46.6899

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458162-1178619590/instance-458162-1178619590.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-458162-1178619590 -o ROOT/results/node50/solver-458162-1178619590 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458162-1178619590/instance-458162-1178619590.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: 0.95 0.97 0.99 3/64 4136
/proc/meminfo: memFree=1808920/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=1320 CPUtime=0
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 216804144 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 330 123 90 219 0 107 0

[startup+0.0514699 s]
/proc/loadavg: 0.95 0.97 0.99 3/64 4136
/proc/meminfo: memFree=1808920/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=1456 CPUtime=0.04
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 181 0 0 0 4 0 0 0 18 0 1 0 216804144 1490944 163 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 364 163 90 219 0 141 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1456

[startup+0.101474 s]
/proc/loadavg: 0.95 0.97 0.99 3/64 4136
/proc/meminfo: memFree=1808920/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=1456 CPUtime=0.09
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 222 0 0 0 9 0 0 0 18 0 1 0 216804144 1490944 204 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 364 204 90 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301491 s]
/proc/loadavg: 0.95 0.97 0.99 3/64 4136
/proc/meminfo: memFree=1808920/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=2388 CPUtime=0.29
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 366 0 0 0 29 0 0 0 19 0 1 0 216804144 2445312 348 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 597 348 90 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.701527 s]
/proc/loadavg: 0.95 0.97 0.99 3/64 4136
/proc/meminfo: memFree=1808920/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=3608 CPUtime=0.69
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 566 0 0 0 68 1 0 0 23 0 1 0 216804144 3694592 548 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 902 548 90 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.5026 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1806544/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=5980 CPUtime=1.49
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 958 0 0 0 148 1 0 0 25 0 1 0 216804144 6123520 891 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 1495 891 90 219 0 1272 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5980

[startup+3.10174 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1804880/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=6764 CPUtime=3.09
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 1482 0 0 0 307 2 0 0 25 0 1 0 216804144 6926336 1318 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 1691 1318 90 219 0 1468 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6764

[startup+6.30202 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1802192/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=11420 CPUtime=6.29
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 2016 0 0 0 626 3 0 0 25 0 1 0 216804144 11694080 1852 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 2855 1852 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: 0.96 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1798480/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=13164 CPUtime=12.69
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 2985 0 0 0 1264 5 0 0 25 0 1 0 216804144 13479936 2628 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134547228 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 3291 2628 90 219 0 3068 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13164

[startup+25.5017 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1794000/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=24440 CPUtime=25.48
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 4465 0 0 0 2538 10 0 0 25 0 1 0 216804144 25026560 3723 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 6110 3723 90 219 0 5887 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 24440

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

[startup+38.3018 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1792272/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=25712 CPUtime=38.28
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 4908 0 0 0 3815 13 0 0 25 0 1 0 216804144 26329088 4166 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544750 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 6428 4166 90 219 0 6205 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 25712

[startup+41.5011 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1792080/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=26000 CPUtime=41.48
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 5031 0 0 0 4134 14 0 0 25 0 1 0 216804144 26624000 4289 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 6500 4289 90 219 0 6277 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 26000

[startup+44.7014 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1791440/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=26160 CPUtime=44.68
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 5103 0 0 0 4454 14 0 0 25 0 1 0 216804144 26787840 4361 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 6540 4361 90 219 0 6317 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 26160

[startup+45.5015 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1791376/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=26160 CPUtime=45.48
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 5113 0 0 0 4534 14 0 0 25 0 1 0 216804144 26787840 4371 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 6540 4371 90 219 0 6317 0
Current children cumulated CPU time (s) 45.48
Current children cumulated vsize (KiB) 26160

[startup+46.3015 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1791120/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=26472 CPUtime=46.28
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 5165 0 0 0 4614 14 0 0 25 0 1 0 216804144 27107328 4423 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 6618 4423 90 219 0 6395 0
Current children cumulated CPU time (s) 46.28
Current children cumulated vsize (KiB) 26472

[startup+46.7016 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4137
/proc/meminfo: memFree=1791120/2055920 swapFree=4183852/4192956
[pid=4136] ppid=4134 vsize=26472 CPUtime=46.68
/proc/4136/stat : 4136 (PBS4_SAT07v2) R 4134 4136 2663 0 -1 4194304 5169 0 0 0 4654 14 0 0 25 0 1 0 216804144 27107328 4427 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4136/statm: 6618 4427 90 219 0 6395 0
Current children cumulated CPU time (s) 46.68
Current children cumulated vsize (KiB) 26472

Child status: 0
Real time (s): 46.7102
CPU time (s): 46.6969
CPU user time (s): 46.5459
CPU system time (s): 0.150977
CPU usage (%): 99.9716
Max. virtual memory (cumulated for all children) (KiB): 26472

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 46.5459
system time used= 0.150977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5186
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= 90

runsolver used 0.027995 second user time and 0.105983 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Tue May  8 10:19:50 UTC 2007

IDJOB= 458162
IDBENCH= 1239
IDSOLVER= 200
FILE ID= node50/458162-1178619590

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-t2001.13queen13.1110978113.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458162-1178619590/instance-458162-1178619590.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node50/convwatcher-458162-1178619590 -o ROOT/results/node50/conversion-458162-1178619590 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458162-1178619590/instance-458162-1178619590.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-458162-1178619590 -o ROOT/results/node50/solver-458162-1178619590 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458162-1178619590/instance-458162-1178619590.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  99201112dfecb8b8483aa9e53b3784e0

RANDOM SEED= 461966235

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:       1809264 kB
Buffers:         18504 kB
Cached:         134252 kB
SwapCached:       3032 kB
Active:          34444 kB
Inactive:       128688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1809264 kB
SwapTotal:     4192956 kB
SwapFree:      4183852 kB
Dirty:            2404 kB
Writeback:           0 kB
Mapped:          16452 kB
Slab:            69492 kB
Committed_AS:  4939056 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 10:20:37 UTC 2007