Trace number 458160

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 17.1654 17.1687

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110976157.opb
MD5SUM235312dfda333014b070014ae56a469d
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 benchmark0.015997
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 1294
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/458160-1178619579/instance-458160-1178619579.opb ......
17.09/17.16	c done parsing opb.
17.09/17.16	s UNSATISFIABLE
17.09/17.16	c Total Run Time					17.1574

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458160-1178619579/instance-458160-1178619579.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/node41/watcher-458160-1178619579 -o ROOT/results/node41/solver-458160-1178619579 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458160-1178619579/instance-458160-1178619579.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: 0.86 0.97 0.99 3/77 24547
/proc/meminfo: memFree=1502992/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=1320 CPUtime=0
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 309869794 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 330 123 90 219 0 107 0

[startup+0.063254 s]
/proc/loadavg: 0.86 0.97 0.99 3/77 24547
/proc/meminfo: memFree=1502992/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=1452 CPUtime=0.05
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 182 0 0 0 5 0 0 0 18 0 1 0 309869794 1486848 164 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 363 164 90 219 0 140 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1452

[startup+0.101256 s]
/proc/loadavg: 0.86 0.97 0.99 3/77 24547
/proc/meminfo: memFree=1502992/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=1452 CPUtime=0.09
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 208 0 0 0 9 0 0 0 18 0 1 0 309869794 1486848 190 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 363 190 90 219 0 140 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1452

[startup+0.301273 s]
/proc/loadavg: 0.86 0.97 0.99 3/77 24547
/proc/meminfo: memFree=1502992/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=2392 CPUtime=0.29
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 317 0 0 0 29 0 0 0 20 0 1 0 309869794 2449408 299 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 598 299 90 219 0 375 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2392

[startup+0.701308 s]
/proc/loadavg: 0.86 0.97 0.99 3/77 24547
/proc/meminfo: memFree=1502992/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=2588 CPUtime=0.69
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 490 0 0 0 69 0 0 0 24 0 1 0 309869794 2650112 472 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 647 472 90 219 0 424 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2588

[startup+1.50138 s]
/proc/loadavg: 0.86 0.97 0.99 2/78 24548
/proc/meminfo: memFree=1501064/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=3948 CPUtime=1.49
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 817 0 0 0 148 1 0 0 25 0 1 0 309869794 4042752 750 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 987 750 90 219 0 764 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3948

[startup+3.10152 s]
/proc/loadavg: 0.86 0.97 0.99 2/78 24548
/proc/meminfo: memFree=1499336/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=6780 CPUtime=3.09
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 1276 0 0 0 307 2 0 0 25 0 1 0 309869794 6942720 1112 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544683 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 1695 1112 90 219 0 1472 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6780

[startup+6.3018 s]
/proc/loadavg: 0.87 0.97 0.99 2/78 24548
/proc/meminfo: memFree=1497224/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=7340 CPUtime=6.29
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 1683 0 0 0 626 3 0 0 25 0 1 0 309869794 7516160 1519 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 1835 1519 90 219 0 1612 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7340

[startup+12.7014 s]
/proc/loadavg: 0.88 0.97 0.99 2/78 24548
/proc/meminfo: memFree=1493968/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=13252 CPUtime=12.69
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 2675 0 0 0 1264 5 0 0 25 0 1 0 309869794 13570048 2318 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 3313 2318 90 219 0 3090 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13252

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

[startup+14.3055 s]
/proc/loadavg: 0.89 0.97 0.99 2/78 24548
/proc/meminfo: memFree=1493520/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=13568 CPUtime=14.29
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 2755 0 0 0 1423 6 0 0 25 0 1 0 309869794 13893632 2398 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 3392 2398 90 219 0 3169 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 13568

[startup+15.9016 s]
/proc/loadavg: 0.89 0.97 0.99 2/78 24548
/proc/meminfo: memFree=1493392/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=13704 CPUtime=15.88
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 2804 0 0 0 1582 6 0 0 25 0 1 0 309869794 14032896 2447 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 3426 2447 90 219 0 3203 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13704

[startup+16.7017 s]
/proc/loadavg: 0.89 0.97 0.99 2/78 24548
/proc/meminfo: memFree=1493264/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=13704 CPUtime=16.69
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 2838 0 0 0 1662 7 0 0 25 0 1 0 309869794 14032896 2481 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 3426 2481 90 219 0 3203 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 13704

[startup+17.1017 s]
/proc/loadavg: 0.89 0.97 0.99 2/78 24548
/proc/meminfo: memFree=1493264/2055920 swapFree=4169412/4192956
[pid=24547] ppid=24545 vsize=13704 CPUtime=17.09
/proc/24547/stat : 24547 (PBS4_SAT07v2) R 24545 24547 23489 0 -1 4194304 2913 0 0 0 1702 7 0 0 25 0 1 0 309869794 14032896 2556 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24547/statm: 3426 2556 90 219 0 3203 0
Current children cumulated CPU time (s) 17.09
Current children cumulated vsize (KiB) 13704

Child status: 0
Real time (s): 17.1687
CPU time (s): 17.1654
CPU user time (s): 17.0874
CPU system time (s): 0.077988
CPU usage (%): 99.9807
Max. virtual memory (cumulated for all children) (KiB): 13704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.0874
system time used= 0.077988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3324
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= 361

runsolver used 0.016997 second user time and 0.041993 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue May  8 10:19:39 UTC 2007

IDJOB= 458160
IDBENCH= 1237
IDSOLVER= 200
FILE ID= node41/458160-1178619579

PBS_JOBID= 5218237

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-t2001.13queen13.1110976157.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458160-1178619579/instance-458160-1178619579.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node41/convwatcher-458160-1178619579 -o ROOT/results/node41/conversion-458160-1178619579 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458160-1178619579/instance-458160-1178619579.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-458160-1178619579 -o ROOT/results/node41/solver-458160-1178619579 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458160-1178619579/instance-458160-1178619579.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  235312dfda333014b070014ae56a469d

RANDOM SEED= 890493129

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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:       1503400 kB
Buffers:         40400 kB
Cached:         387240 kB
SwapCached:       3072 kB
Active:         142592 kB
Inactive:       309444 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1503400 kB
SwapTotal:     4192956 kB
SwapFree:      4169412 kB
Dirty:            2408 kB
Writeback:           0 kB
Mapped:          31936 kB
Slab:            85764 kB
Committed_AS:  8578008 kB
PageTables:       2008 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 node41 on Tue May  8 10:19:56 UTC 2007