Trace number 358055

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 39.8839 39.8946

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111212272.opb
MD5SUM7809c10b09811dc0835bdd39e8310775
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 benchmark0.140978
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 1210
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/358055-1176912349/instance-358055-1176912349.opb ......
39.78/39.89	c done parsing opb.
39.78/39.89	s UNSATISFIABLE
39.78/39.89	c Total Run Time					39.8759

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358055-1176912349/instance-358055-1176912349.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/node60/watcher-358055-1176912349 -o ROOT/results/node60/solver-358055-1176912349 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358055-1176912349/PBS4 /tmp/evaluation/358055-1176912349/instance-358055-1176912349.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 0.98 0.99 3/64 3330
/proc/meminfo: memFree=1413112/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=1320 CPUtime=0
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 139144841 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 330 125 92 219 0 107 0

[startup+0.028192 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 3330
/proc/meminfo: memFree=1413112/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=1320 CPUtime=0.02
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 159 0 0 0 2 0 0 0 18 0 1 0 139144841 1351680 141 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 330 142 92 219 0 107 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1320

[startup+0.101199 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 3330
/proc/meminfo: memFree=1413112/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=1456 CPUtime=0.09
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 214 0 0 0 9 0 0 0 18 0 1 0 139144841 1490944 196 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 364 196 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301218 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 3330
/proc/meminfo: memFree=1413112/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=2376 CPUtime=0.29
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 324 0 0 0 29 0 0 0 19 0 1 0 139144841 2433024 306 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 594 306 93 219 0 371 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2376

[startup+0.701258 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 3330
/proc/meminfo: memFree=1413112/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=3596 CPUtime=0.69
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 546 0 0 0 69 0 0 0 22 0 1 0 139144841 3682304 528 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 899 528 93 219 0 676 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3596

[startup+1.50134 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 3331
/proc/meminfo: memFree=1410800/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=5980 CPUtime=1.49
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 915 0 0 0 148 1 0 0 25 0 1 0 139144841 6123520 848 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 1495 848 94 219 0 1272 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5980

[startup+3.10149 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1409200/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=6760 CPUtime=3.09
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 1433 0 0 0 308 1 0 0 25 0 1 0 139144841 6922240 1269 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547308 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 1690 1269 94 219 0 1467 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6760

[startup+6.30181 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1406448/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=11556 CPUtime=6.29
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 1909 0 0 0 627 2 0 0 25 0 1 0 139144841 11833344 1745 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 2889 1745 94 219 0 2666 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11556

[startup+12.7014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1403888/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=13056 CPUtime=12.69
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 2822 0 0 0 1264 5 0 0 25 0 1 0 139144841 13369344 2465 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 3264 2465 94 219 0 3041 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13056

[startup+25.5017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1399152/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=23952 CPUtime=25.49
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 4302 0 0 0 2541 8 0 0 25 0 1 0 139144841 24526848 3560 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 5988 3560 94 219 0 5765 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 23952

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

[startup+31.9053 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1397232/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=24876 CPUtime=31.89
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 4744 0 0 0 3180 9 0 0 25 0 1 0 139144841 25473024 4002 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559787 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 6219 4002 94 219 0 5996 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 24876

[startup+35.1016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1396848/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=25160 CPUtime=35.09
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 4844 0 0 0 3500 9 0 0 25 0 1 0 139144841 25763840 4102 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 6290 4102 94 219 0 6067 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 25160

[startup+38.3019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1396464/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=25432 CPUtime=38.28
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 4962 0 0 0 3818 10 0 0 25 0 1 0 139144841 26042368 4220 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 6358 4220 94 219 0 6135 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 25432

[startup+39.1011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1396336/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=25432 CPUtime=39.08
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 4978 0 0 0 3898 10 0 0 25 0 1 0 139144841 26042368 4236 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 6358 4236 94 219 0 6135 0
Current children cumulated CPU time (s) 39.08
Current children cumulated vsize (KiB) 25432

[startup+39.5011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1396272/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=25432 CPUtime=39.49
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 4983 0 0 0 3939 10 0 0 25 0 1 0 139144841 26042368 4241 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 6358 4241 94 219 0 6135 0
Current children cumulated CPU time (s) 39.49
Current children cumulated vsize (KiB) 25432

[startup+39.7011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1396272/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=25432 CPUtime=39.68
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 4984 0 0 0 3958 10 0 0 25 0 1 0 139144841 26042368 4242 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 6358 4242 94 219 0 6135 0
Current children cumulated CPU time (s) 39.68
Current children cumulated vsize (KiB) 25432

[startup+39.8011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3331
/proc/meminfo: memFree=1396272/2055920 swapFree=4181680/4192956
[pid=3330] ppid=3328 vsize=25432 CPUtime=39.78
/proc/3330/stat : 3330 (PBS4) R 3328 3330 2627 0 -1 4194304 4985 0 0 0 3968 10 0 0 25 0 1 0 139144841 26042368 4243 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3330/statm: 6358 4243 94 219 0 6135 0
Current children cumulated CPU time (s) 39.78
Current children cumulated vsize (KiB) 25432

Child status: 0
Real time (s): 39.8946
CPU time (s): 39.8839
CPU user time (s): 39.776
CPU system time (s): 0.107983
CPU usage (%): 99.9732
Max. virtual memory (cumulated for all children) (KiB): 25432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 39.776
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= 5001
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= 70

runsolver used 0.032994 second user time and 0.083987 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Wed Apr 18 16:05:49 UTC 2007

IDJOB= 358055
IDBENCH= 1187
IDSOLVER= 157
FILE ID= node60/358055-1176912349

PBS_JOBID= 4595203

Free space on /tmp= 66416 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111212272.opb
COMMAND LINE= /tmp/evaluation/358055-1176912349/PBS4 /tmp/evaluation/358055-1176912349/instance-358055-1176912349.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node60/convwatcher-358055-1176912349 -o ROOT/results/node60/conversion-358055-1176912349 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358055-1176912349/instance-358055-1176912349.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-358055-1176912349 -o ROOT/results/node60/solver-358055-1176912349 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358055-1176912349/PBS4 /tmp/evaluation/358055-1176912349/instance-358055-1176912349.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  7809c10b09811dc0835bdd39e8310775

RANDOM SEED= 245987193

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.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		: 3000.214
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		: 3000.214
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:       1413520 kB
Buffers:         25312 kB
Cached:         542544 kB
SwapCached:       5044 kB
Active:         214684 kB
Inactive:       364612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1413520 kB
SwapTotal:     4192956 kB
SwapFree:      4181680 kB
Dirty:            1144 kB
Writeback:           0 kB
Mapped:          15908 kB
Slab:            49132 kB
Committed_AS:  1518972 kB
PageTables:       1464 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= 66416 MiB

End job on node60 on Wed Apr 18 16:06:29 UTC 2007