Trace number 358461

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 18.9401 18.9488

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111218955.opb
MD5SUM4fb633c677215fa561629219b731606a
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 benchmark0.112982
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 1202
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/358461-1176915525/instance-358461-1176915525.opb ......
18.88/18.94	c done parsing opb.
18.88/18.94	s UNSATISFIABLE
18.88/18.94	c Total Run Time					18.9341

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358461-1176915525/instance-358461-1176915525.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/node25/watcher-358461-1176915525 -o ROOT/results/node25/solver-358461-1176915525 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358461-1176915525/PBS4 /tmp/evaluation/358461-1176915525/instance-358461-1176915525.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: 0.96 0.94 0.97 3/64 22592
/proc/meminfo: memFree=1933384/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=1320 CPUtime=0
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 139469564 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 330 125 92 219 0 107 0

[startup+0.024707 s]
/proc/loadavg: 0.96 0.94 0.97 3/64 22592
/proc/meminfo: memFree=1933384/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=1320 CPUtime=0.02
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 160 0 0 0 2 0 0 0 18 0 1 0 139469564 1351680 142 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 330 142 92 219 0 107 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1320

[startup+0.10172 s]
/proc/loadavg: 0.96 0.94 0.97 3/64 22592
/proc/meminfo: memFree=1933384/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=1456 CPUtime=0.09
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 225 0 0 0 9 0 0 0 18 0 1 0 139469564 1490944 207 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 364 207 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301753 s]
/proc/loadavg: 0.96 0.94 0.97 3/64 22592
/proc/meminfo: memFree=1933384/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=2392 CPUtime=0.29
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 336 0 0 0 29 0 0 0 19 0 1 0 139469564 2449408 318 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 598 318 93 219 0 375 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2392

[startup+0.701822 s]
/proc/loadavg: 0.96 0.94 0.97 3/64 22592
/proc/meminfo: memFree=1933384/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=3612 CPUtime=0.69
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 546 0 0 0 69 0 0 0 22 0 1 0 139469564 3698688 528 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 903 528 93 219 0 680 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3612

[startup+1.50196 s]
/proc/loadavg: 0.96 0.94 0.97 2/65 22593
/proc/meminfo: memFree=1931200/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=5984 CPUtime=1.49
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 880 0 0 0 149 0 0 0 25 0 1 0 139469564 6127616 813 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 1496 813 94 219 0 1273 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5984

[startup+3.10123 s]
/proc/loadavg: 0.96 0.94 0.97 2/65 22593
/proc/meminfo: memFree=1929536/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=6780 CPUtime=3.09
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 1451 0 0 0 308 1 0 0 25 0 1 0 139469564 6942720 1287 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 1695 1287 94 219 0 1472 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6780

[startup+6.30178 s]
/proc/loadavg: 0.96 0.94 0.97 2/65 22593
/proc/meminfo: memFree=1926592/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=11420 CPUtime=6.29
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 1943 0 0 0 626 3 0 0 25 0 1 0 139469564 11694080 1779 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 2855 1779 94 219 0 2632 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11420

[startup+12.7019 s]
/proc/loadavg: 0.97 0.94 0.97 2/65 22593
/proc/meminfo: memFree=1923464/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=13372 CPUtime=12.69
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 2910 0 0 0 1264 5 0 0 25 0 1 0 139469564 13692928 2553 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 3343 2553 94 219 0 3120 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13372

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

[startup+15.9014 s]
/proc/loadavg: 0.97 0.94 0.97 2/65 22593
/proc/meminfo: memFree=1922696/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=13696 CPUtime=15.88
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 3059 0 0 0 1581 7 0 0 25 0 1 0 139469564 14024704 2702 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 3424 2702 94 219 0 3201 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13696

[startup+17.5017 s]
/proc/loadavg: 0.97 0.94 0.97 2/65 22593
/proc/meminfo: memFree=1922184/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=15608 CPUtime=17.48
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 3540 0 0 0 1741 7 0 0 25 0 1 0 139469564 15982592 2798 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 3902 2798 94 219 0 3679 0
Current children cumulated CPU time (s) 17.48
Current children cumulated vsize (KiB) 15608

[startup+18.3018 s]
/proc/loadavg: 0.97 0.94 0.97 2/65 22593
/proc/meminfo: memFree=1922184/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=15608 CPUtime=18.28
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 3587 0 0 0 1821 7 0 0 25 0 1 0 139469564 15982592 2845 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 3902 2845 94 219 0 3679 0
Current children cumulated CPU time (s) 18.28
Current children cumulated vsize (KiB) 15608

[startup+18.7049 s]
/proc/loadavg: 0.97 0.95 0.97 2/65 22593
/proc/meminfo: memFree=1921992/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=15608 CPUtime=18.69
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 3595 0 0 0 1861 8 0 0 25 0 1 0 139469564 15982592 2853 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 3902 2853 94 219 0 3679 0
Current children cumulated CPU time (s) 18.69
Current children cumulated vsize (KiB) 15608

[startup+18.9019 s]
/proc/loadavg: 0.97 0.95 0.97 2/65 22593
/proc/meminfo: memFree=1921992/2055920 swapFree=4182972/4192956
[pid=22592] ppid=22590 vsize=15816 CPUtime=18.88
/proc/22592/stat : 22592 (PBS4) R 22590 22592 22232 0 -1 4194304 3624 0 0 0 1880 8 0 0 25 0 1 0 139469564 16195584 2882 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22592/statm: 3954 2882 94 219 0 3731 0
Current children cumulated CPU time (s) 18.88
Current children cumulated vsize (KiB) 15816

Child status: 0
Real time (s): 18.9488
CPU time (s): 18.9401
CPU user time (s): 18.8511
CPU system time (s): 0.088986
CPU usage (%): 99.9542
Max. virtual memory (cumulated for all children) (KiB): 15816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.8511
system time used= 0.088986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3640
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= 34

runsolver used 0.008998 second user time and 0.051992 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Wed Apr 18 16:58:45 UTC 2007

IDJOB= 358461
IDBENCH= 1216
IDSOLVER= 157
FILE ID= node25/358461-1176915525

PBS_JOBID= 4595264

Free space on /tmp= 66368 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111218955.opb
COMMAND LINE= /tmp/evaluation/358461-1176915525/PBS4 /tmp/evaluation/358461-1176915525/instance-358461-1176915525.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node25/convwatcher-358461-1176915525 -o ROOT/results/node25/conversion-358461-1176915525 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358461-1176915525/instance-358461-1176915525.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-358461-1176915525 -o ROOT/results/node25/solver-358461-1176915525 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358461-1176915525/PBS4 /tmp/evaluation/358461-1176915525/instance-358461-1176915525.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  4fb633c677215fa561629219b731606a

RANDOM SEED= 281385208

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.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		: 3000.261
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		: 3000.261
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:       1933792 kB
Buffers:          5708 kB
Cached:          70236 kB
SwapCached:       3684 kB
Active:          32968 kB
Inactive:        52392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1933792 kB
SwapTotal:     4192956 kB
SwapFree:      4182972 kB
Dirty:            1300 kB
Writeback:           0 kB
Mapped:          15440 kB
Slab:            22816 kB
Committed_AS:  2141688 kB
PageTables:       1472 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= 66368 MiB

End job on node25 on Wed Apr 18 16:59:04 UTC 2007