Trace number 458176

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 20.3779 20.3873

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111224929.opb
MD5SUM7cb47e44b2705fbf7948e62a414ce623
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 benchmark0.045992
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 1264
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/458176-1178619665/instance-458176-1178619665.opb ......
20.29/20.38	c done parsing opb.
20.29/20.38	s UNSATISFIABLE
20.29/20.38	c Total Run Time					20.3719

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458176-1178619665/instance-458176-1178619665.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-458176-1178619665 -o ROOT/results/node10/solver-458176-1178619665 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458176-1178619665/instance-458176-1178619665.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: 0.97 0.94 0.95 3/77 24956
/proc/meminfo: memFree=1797640/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=1320 CPUtime=0
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 338004053 1351680 123 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 330 123 90 219 0 107 0

[startup+0.0436049 s]
/proc/loadavg: 0.97 0.94 0.95 3/77 24956
/proc/meminfo: memFree=1797640/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=1320 CPUtime=0.04
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 171 0 0 0 4 0 0 0 18 0 1 0 338004053 1351680 153 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 330 153 90 219 0 107 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1320

[startup+0.101617 s]
/proc/loadavg: 0.97 0.94 0.95 3/77 24956
/proc/meminfo: memFree=1797640/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=1456 CPUtime=0.09
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 215 0 0 0 9 0 0 0 18 0 1 0 338004053 1490944 197 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 364 197 90 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.30166 s]
/proc/loadavg: 0.97 0.94 0.95 3/77 24956
/proc/meminfo: memFree=1797640/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=2384 CPUtime=0.29
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 330 0 0 0 29 0 0 0 19 0 1 0 338004053 2441216 312 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 596 312 90 219 0 373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2384

[startup+0.701746 s]
/proc/loadavg: 0.97 0.94 0.95 3/77 24956
/proc/meminfo: memFree=1797640/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=3604 CPUtime=0.69
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 537 0 0 0 69 0 0 0 23 0 1 0 338004053 3690496 519 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 901 519 90 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.50192 s]
/proc/loadavg: 0.97 0.94 0.95 2/78 24957
/proc/meminfo: memFree=1795328/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=6108 CPUtime=1.49
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 904 0 0 0 148 1 0 0 25 0 1 0 338004053 6254592 837 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 1527 837 90 219 0 1304 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6108

[startup+3.10127 s]
/proc/loadavg: 0.97 0.94 0.95 2/78 24957
/proc/meminfo: memFree=1794176/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=6760 CPUtime=3.09
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 1347 0 0 0 307 2 0 0 25 0 1 0 338004053 6922240 1183 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 1690 1183 90 219 0 1467 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6760

[startup+6.30196 s]
/proc/loadavg: 0.97 0.94 0.95 2/78 24957
/proc/meminfo: memFree=1791168/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=11540 CPUtime=6.29
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 1881 0 0 0 625 4 0 0 25 0 1 0 338004053 11816960 1717 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 2885 1717 90 219 0 2662 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11540

[startup+12.7013 s]
/proc/loadavg: 0.97 0.94 0.95 2/78 24957
/proc/meminfo: memFree=1787328/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=13148 CPUtime=12.68
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 3088 0 0 0 1262 6 0 0 25 0 1 0 338004053 13463552 2731 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 3287 2731 90 219 0 3064 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13148

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

[startup+15.901 s]
/proc/loadavg: 0.97 0.94 0.95 2/78 24957
/proc/meminfo: memFree=1785344/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=13872 CPUtime=15.88
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 3519 0 0 0 1581 7 0 0 25 0 1 0 338004053 14204928 3162 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 3468 3162 90 219 0 3245 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13872

[startup+17.5014 s]
/proc/loadavg: 0.97 0.94 0.95 2/78 24957
/proc/meminfo: memFree=1784768/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=14072 CPUtime=17.49
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 3597 0 0 0 1741 8 0 0 25 0 1 0 338004053 14409728 3240 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 3518 3240 90 219 0 3295 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 14072

[startup+19.1017 s]
/proc/loadavg: 0.97 0.94 0.95 2/78 24957
/proc/meminfo: memFree=1784448/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=15984 CPUtime=19.08
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 4070 0 0 0 1900 8 0 0 25 0 1 0 338004053 16367616 3328 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134544734 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 3996 3328 90 219 0 3773 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15984

[startup+19.9019 s]
/proc/loadavg: 0.97 0.94 0.95 2/78 24957
/proc/meminfo: memFree=1784256/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=15984 CPUtime=19.89
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 4117 0 0 0 1980 9 0 0 25 0 1 0 338004053 16367616 3375 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 3996 3375 90 219 0 3773 0
Current children cumulated CPU time (s) 19.89
Current children cumulated vsize (KiB) 15984

[startup+20.302 s]
/proc/loadavg: 0.97 0.94 0.95 2/78 24957
/proc/meminfo: memFree=1784256/2055920 swapFree=4145572/4192956
[pid=24956] ppid=24954 vsize=16184 CPUtime=20.29
/proc/24956/stat : 24956 (PBS4_SAT07v2) R 24954 24956 22363 0 -1 4194304 4134 0 0 0 2020 9 0 0 25 0 1 0 338004053 16572416 3392 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24956/statm: 4046 3392 90 219 0 3823 0
Current children cumulated CPU time (s) 20.29
Current children cumulated vsize (KiB) 16184

Child status: 0
Real time (s): 20.3873
CPU time (s): 20.3779
CPU user time (s): 20.2829
CPU system time (s): 0.094985
CPU usage (%): 99.9537
Max. virtual memory (cumulated for all children) (KiB): 16184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.2829
system time used= 0.094985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4152
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= 422

runsolver used 0.015997 second user time and 0.049992 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Tue May  8 10:21:05 UTC 2007

IDJOB= 458176
IDBENCH= 1253
IDSOLVER= 200
FILE ID= node10/458176-1178619665

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-t2001.13queen13.1111224929.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458176-1178619665/instance-458176-1178619665.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node10/convwatcher-458176-1178619665 -o ROOT/results/node10/conversion-458176-1178619665 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458176-1178619665/instance-458176-1178619665.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-458176-1178619665 -o ROOT/results/node10/solver-458176-1178619665 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458176-1178619665/instance-458176-1178619665.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  7cb47e44b2705fbf7948e62a414ce623

RANDOM SEED= 563894269

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:       1798048 kB
Buffers:         35068 kB
Cached:         134188 kB
SwapCached:      15636 kB
Active:         103116 kB
Inactive:        89752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1798048 kB
SwapTotal:     4192956 kB
SwapFree:      4145572 kB
Dirty:            2448 kB
Writeback:           0 kB
Mapped:          30580 kB
Slab:            50572 kB
Committed_AS:  5194192 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 10:21:26 UTC 2007