Trace number 458136

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 22.2346 22.2442

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110973364.opb
MD5SUM66a2e883ec362dfba231f3fbe3233ce6
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 benchmark0.243962
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 1246
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/458136-1178619385/instance-458136-1178619385.opb ......
22.18/22.24	c done parsing opb.
22.18/22.24	s UNSATISFIABLE
22.18/22.24	c Total Run Time					22.2276

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458136-1178619385/instance-458136-1178619385.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/node10/watcher-458136-1178619385 -o ROOT/results/node10/solver-458136-1178619385 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458136-1178619385/instance-458136-1178619385.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: 0.92 0.93 0.96 3/77 24242
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=1320 CPUtime=0
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 337976038 1351680 123 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 330 123 90 219 0 107 0

[startup+0.10365 s]
/proc/loadavg: 0.92 0.93 0.96 3/77 24242
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=1452 CPUtime=0.1
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 190 0 0 0 10 0 0 0 18 0 1 0 337976038 1486848 172 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 363 172 90 219 0 140 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1452

[startup+0.20167 s]
/proc/loadavg: 0.92 0.93 0.96 3/77 24242
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=1708 CPUtime=0.19
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 238 0 0 0 19 0 0 0 18 0 1 0 337976038 1748992 220 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 427 220 90 219 0 204 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1708

[startup+0.301692 s]
/proc/loadavg: 0.92 0.93 0.96 3/77 24242
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=1868 CPUtime=0.29
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 292 0 0 0 29 0 0 0 19 0 1 0 337976038 1912832 274 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 467 274 90 219 0 244 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1868

[startup+0.701778 s]
/proc/loadavg: 0.92 0.93 0.96 3/77 24242
/proc/meminfo: memFree=1798536/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=3600 CPUtime=0.69
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 501 0 0 0 69 0 0 0 23 0 1 0 337976038 3686400 483 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 900 483 90 219 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.50195 s]
/proc/loadavg: 0.92 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1796160/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=4056 CPUtime=1.49
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 881 0 0 0 149 0 0 0 25 0 1 0 337976038 4153344 814 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 1014 814 90 219 0 791 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4056

[startup+3.1013 s]
/proc/loadavg: 0.93 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1794624/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=6764 CPUtime=3.09
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 1497 0 0 0 308 1 0 0 25 0 1 0 337976038 6926336 1333 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134557049 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 1691 1333 90 219 0 1468 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6764

[startup+6.30199 s]
/proc/loadavg: 0.93 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1791944/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=11544 CPUtime=6.29
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 2017 0 0 0 628 1 0 0 25 0 1 0 337976038 11821056 1853 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 2886 1853 90 219 0 2663 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11544

[startup+12.7014 s]
/proc/loadavg: 0.94 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1788808/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=13288 CPUtime=12.69
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 2838 0 0 0 1266 3 0 0 25 0 1 0 337976038 13606912 2481 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134557448 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 3322 2481 90 219 0 3099 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13288

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

[startup+12.8014 s]
/proc/loadavg: 0.94 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1788808/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=13288 CPUtime=12.79
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 2839 0 0 0 1276 3 0 0 25 0 1 0 337976038 13606912 2482 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 3322 2482 90 219 0 3099 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 13288

[startup+19.2018 s]
/proc/loadavg: 0.94 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1787400/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=14140 CPUtime=19.18
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 3174 0 0 0 1913 5 0 0 25 0 1 0 337976038 14479360 2817 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134557040 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 3535 2817 90 219 0 3312 0
Current children cumulated CPU time (s) 19.18
Current children cumulated vsize (KiB) 14140

[startup+20.8011 s]
/proc/loadavg: 0.94 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1787272/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=15808 CPUtime=20.78
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 3613 0 0 0 2073 5 0 0 25 0 1 0 337976038 16187392 2871 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 3952 2871 90 219 0 3729 0
Current children cumulated CPU time (s) 20.78
Current children cumulated vsize (KiB) 15808

[startup+21.6013 s]
/proc/loadavg: 0.94 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1787016/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=16008 CPUtime=21.58
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 3689 0 0 0 2153 5 0 0 25 0 1 0 337976038 16392192 2947 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 4002 2947 90 219 0 3779 0
Current children cumulated CPU time (s) 21.58
Current children cumulated vsize (KiB) 16008

[startup+22.0014 s]
/proc/loadavg: 0.95 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1786824/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=16008 CPUtime=21.98
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 3695 0 0 0 2193 5 0 0 25 0 1 0 337976038 16392192 2953 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544750 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 4002 2953 90 219 0 3779 0
Current children cumulated CPU time (s) 21.98
Current children cumulated vsize (KiB) 16008

[startup+22.2014 s]
/proc/loadavg: 0.95 0.93 0.96 2/78 24243
/proc/meminfo: memFree=1786824/2055920 swapFree=4145572/4192956
[pid=24242] ppid=24240 vsize=16008 CPUtime=22.18
/proc/24242/stat : 24242 (PBS4_SAT07v2) R 24240 24242 22363 0 -1 4194304 3698 0 0 0 2213 5 0 0 25 0 1 0 337976038 16392192 2956 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24242/statm: 4002 2956 90 219 0 3779 0
Current children cumulated CPU time (s) 22.18
Current children cumulated vsize (KiB) 16008

Child status: 0
Real time (s): 22.2442
CPU time (s): 22.2346
CPU user time (s): 22.1716
CPU system time (s): 0.06299
CPU usage (%): 99.9568
Max. virtual memory (cumulated for all children) (KiB): 16008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.1716
system time used= 0.06299
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3715
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= 462

runsolver used 0.024996 second user time and 0.050992 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Tue May  8 10:16:25 UTC 2007

IDJOB= 458136
IDBENCH= 1213
IDSOLVER= 200
FILE ID= node10/458136-1178619385

PBS_JOBID= 5217775

Free space on /tmp= 66561 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110973364.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458136-1178619385/instance-458136-1178619385.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node10/convwatcher-458136-1178619385 -o ROOT/results/node10/conversion-458136-1178619385 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458136-1178619385/instance-458136-1178619385.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-458136-1178619385 -o ROOT/results/node10/solver-458136-1178619385 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458136-1178619385/instance-458136-1178619385.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  66a2e883ec362dfba231f3fbe3233ce6

RANDOM SEED= 941612692

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.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		: 3000.259
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		: 3000.259
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:       1799008 kB
Buffers:         34872 kB
Cached:         133704 kB
SwapCached:      15636 kB
Active:         103032 kB
Inactive:        89128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1799008 kB
SwapTotal:     4192956 kB
SwapFree:      4145572 kB
Dirty:            2432 kB
Writeback:           0 kB
Mapped:          30580 kB
Slab:            50400 kB
Committed_AS:  5193968 kB
PageTables:       1708 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= 66561 MiB

End job on node10 on Tue May  8 10:16:48 UTC 2007