Trace number 358041

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 22.2526 22.2598

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111225605.opb
MD5SUM6f1cbef2f78310d9a2a135b1ea66aaec
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 benchmark0.603908
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 1240
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/358041-1176912185/instance-358041-1176912185.opb ......
22.18/22.25	c done parsing opb.
22.18/22.25	s UNSATISFIABLE
22.18/22.25	c Total Run Time					22.2456

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358041-1176912185/instance-358041-1176912185.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/node71/watcher-358041-1176912185 -o ROOT/results/node71/solver-358041-1176912185 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358041-1176912185/PBS4 /tmp/evaluation/358041-1176912185/instance-358041-1176912185.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 0.97 0.99 3/64 24573
/proc/meminfo: memFree=1252488/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=1320 CPUtime=0
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 167207875 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134783448 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 330 125 92 219 0 107 0

[startup+0.0755031 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 24573
/proc/meminfo: memFree=1252488/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=1452 CPUtime=0.07
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 181 0 0 0 7 0 0 0 18 0 1 0 167207875 1486848 163 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559768 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 363 163 92 219 0 140 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1452

[startup+0.102507 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 24573
/proc/meminfo: memFree=1252488/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=1452 CPUtime=0.1
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 192 0 0 0 10 0 0 0 18 0 1 0 167207875 1486848 174 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559864 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 363 174 92 219 0 140 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1452

[startup+0.30254 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 24573
/proc/meminfo: memFree=1252488/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=1888 CPUtime=0.29
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 299 0 0 0 29 0 0 0 19 0 1 0 167207875 1933312 281 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559724 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 472 281 93 219 0 249 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1888

[startup+0.701588 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 24573
/proc/meminfo: memFree=1252488/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=2500 CPUtime=0.69
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 485 0 0 0 69 0 0 0 23 0 1 0 167207875 2560000 467 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 625 468 93 219 0 402 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2500

[startup+1.5017 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 24574
/proc/meminfo: memFree=1250496/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=3984 CPUtime=1.49
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 824 0 0 0 148 1 0 0 25 0 1 0 167207875 4079616 757 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 996 757 94 219 0 773 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3984

[startup+3.10192 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 24574
/proc/meminfo: memFree=1248768/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=6828 CPUtime=3.09
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 1392 0 0 0 307 2 0 0 25 0 1 0 167207875 6991872 1228 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 1707 1228 94 219 0 1484 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6828

[startup+6.30135 s]
/proc/loadavg: 1.00 0.98 0.99 2/65 24574
/proc/meminfo: memFree=1246464/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=7508 CPUtime=6.28
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 1817 0 0 0 625 3 0 0 25 0 1 0 167207875 7688192 1653 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 1877 1653 94 219 0 1654 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 7508

[startup+12.7012 s]
/proc/loadavg: 1.00 0.98 0.99 2/65 24574
/proc/meminfo: memFree=1242432/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=13264 CPUtime=12.69
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 2936 0 0 0 1262 7 0 0 25 0 1 0 167207875 13582336 2579 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 3316 2579 94 219 0 3093 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13264

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

[startup+19.1011 s]
/proc/loadavg: 1.00 0.98 0.99 2/65 24574
/proc/meminfo: memFree=1240640/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=15648 CPUtime=19.08
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 3737 0 0 0 1899 9 0 0 25 0 1 0 167207875 16023552 2995 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 3912 2995 94 219 0 3689 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15648

[startup+20.7013 s]
/proc/loadavg: 1.00 0.98 0.99 2/65 24574
/proc/meminfo: memFree=1240448/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=16072 CPUtime=20.69
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 3834 0 0 0 2059 10 0 0 25 0 1 0 167207875 16457728 3092 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 4018 3092 94 219 0 3795 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 16072

[startup+21.5014 s]
/proc/loadavg: 1.00 0.98 0.99 2/65 24574
/proc/meminfo: memFree=1240128/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=16072 CPUtime=21.49
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 3870 0 0 0 2139 10 0 0 25 0 1 0 167207875 16457728 3128 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 4018 3128 94 219 0 3795 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 16072

[startup+21.9015 s]
/proc/loadavg: 1.00 0.98 0.99 2/65 24574
/proc/meminfo: memFree=1240000/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=16072 CPUtime=21.89
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 3877 0 0 0 2179 10 0 0 25 0 1 0 167207875 16457728 3135 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 4018 3135 94 219 0 3795 0
Current children cumulated CPU time (s) 21.89
Current children cumulated vsize (KiB) 16072

[startup+22.1015 s]
/proc/loadavg: 1.00 0.98 0.99 2/65 24574
/proc/meminfo: memFree=1240000/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=16072 CPUtime=22.08
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 3879 0 0 0 2198 10 0 0 25 0 1 0 167207875 16457728 3137 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 4018 3137 94 219 0 3795 0
Current children cumulated CPU time (s) 22.08
Current children cumulated vsize (KiB) 16072

[startup+22.2015 s]
/proc/loadavg: 1.00 0.98 0.99 2/65 24574
/proc/meminfo: memFree=1240000/2055920 swapFree=4184232/4192956
[pid=24573] ppid=24571 vsize=16072 CPUtime=22.18
/proc/24573/stat : 24573 (PBS4) R 24571 24573 24034 0 -1 4194304 3881 0 0 0 2208 10 0 0 25 0 1 0 167207875 16457728 3139 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559751 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24573/statm: 4018 3139 94 219 0 3795 0
Current children cumulated CPU time (s) 22.18
Current children cumulated vsize (KiB) 16072

Child status: 0
Real time (s): 22.2598
CPU time (s): 22.2526
CPU user time (s): 22.1446
CPU system time (s): 0.107983
CPU usage (%): 99.9678
Max. virtual memory (cumulated for all children) (KiB): 16072

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.1446
system time used= 0.107983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3896
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= 20

runsolver used 0.021996 second user time and 0.049992 second system time

The end

Launcher Data (download as text)

Begin job on node71 on Wed Apr 18 16:03:06 UTC 2007

IDJOB= 358041
IDBENCH= 1186
IDSOLVER= 157
FILE ID= node71/358041-1176912185

PBS_JOBID= 4595236

Free space on /tmp= 66446 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111225605.opb
COMMAND LINE= /tmp/evaluation/358041-1176912185/PBS4 /tmp/evaluation/358041-1176912185/instance-358041-1176912185.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node71/convwatcher-358041-1176912185 -o ROOT/results/node71/conversion-358041-1176912185 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358041-1176912185/instance-358041-1176912185.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-358041-1176912185 -o ROOT/results/node71/solver-358041-1176912185 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358041-1176912185/PBS4 /tmp/evaluation/358041-1176912185/instance-358041-1176912185.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  6f1cbef2f78310d9a2a135b1ea66aaec

RANDOM SEED= 562380227

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node71.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		: 3000.234
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		: 3000.234
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:       1252960 kB
Buffers:         25608 kB
Cached:         697808 kB
SwapCached:       2620 kB
Active:         141376 kB
Inactive:       591704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1252960 kB
SwapTotal:     4192956 kB
SwapFree:      4184232 kB
Dirty:            1136 kB
Writeback:           0 kB
Mapped:          15812 kB
Slab:            55972 kB
Committed_AS:  2527536 kB
PageTables:       1448 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= 66446 MiB

End job on node71 on Wed Apr 18 16:03:28 UTC 2007