Trace number 357803

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 20.2279 20.237

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110971363.opb
MD5SUM62c1bb0e6cb74df266ce43b83653f19a
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 benchmark0.091985
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 1228
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/357803-1176900769/instance-357803-1176900769.opb ......
20.18/20.23	c done parsing opb.
20.18/20.23	s UNSATISFIABLE
20.18/20.23	c Total Run Time					20.2219

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/357803-1176900769/instance-357803-1176900769.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-357803-1176900769 -o ROOT/results/node25/solver-357803-1176900769 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/357803-1176900769/PBS4 /tmp/evaluation/357803-1176900769/instance-357803-1176900769.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: 0.94 0.99 0.99 3/64 21104
/proc/meminfo: memFree=1427608/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=1320 CPUtime=0
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 137994011 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 330 125 92 219 0 107 0

[startup+0.0954871 s]
/proc/loadavg: 0.94 0.99 0.99 3/64 21104
/proc/meminfo: memFree=1427608/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=1464 CPUtime=0.09
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 222 0 0 0 9 0 0 0 18 0 1 0 137994011 1499136 204 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 366 204 92 219 0 143 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1464

[startup+0.101487 s]
/proc/loadavg: 0.94 0.99 0.99 3/64 21104
/proc/meminfo: memFree=1427608/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=1464 CPUtime=0.09
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 226 0 0 0 9 0 0 0 18 0 1 0 137994011 1499136 208 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 366 208 92 219 0 143 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1464

[startup+0.30152 s]
/proc/loadavg: 0.94 0.99 0.99 3/64 21104
/proc/meminfo: memFree=1427608/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=2392 CPUtime=0.29
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 344 0 0 0 29 0 0 0 19 0 1 0 137994011 2449408 326 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 598 326 93 219 0 375 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2392

[startup+0.701589 s]
/proc/loadavg: 0.94 0.99 0.99 3/64 21104
/proc/meminfo: memFree=1427608/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=3612 CPUtime=0.69
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 539 0 0 0 69 0 0 0 22 0 1 0 137994011 3698688 521 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 903 521 93 219 0 680 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3612

[startup+1.50173 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1425296/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=5984 CPUtime=1.49
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 882 0 0 0 149 0 0 0 25 0 1 0 137994011 6127616 815 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134549316 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 1496 815 94 219 0 1273 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5984

[startup+3.102 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1423888/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=6636 CPUtime=3.09
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 1358 0 0 0 308 1 0 0 25 0 1 0 137994011 6795264 1194 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135004313 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 1659 1194 94 219 0 1436 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6636

[startup+6.30155 s]
/proc/loadavg: 0.95 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1421136/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=11540 CPUtime=6.29
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 2021 0 0 0 625 4 0 0 25 0 1 0 137994011 11816960 1857 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 2885 1857 94 219 0 2662 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11540

[startup+12.7026 s]
/proc/loadavg: 0.95 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1419088/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=13232 CPUtime=12.68
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 2553 0 0 0 1262 6 0 0 25 0 1 0 137994011 13549568 2196 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 3308 2196 94 219 0 3085 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13232

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

[startup+15.9012 s]
/proc/loadavg: 0.96 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1418384/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=13540 CPUtime=15.88
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 2717 0 0 0 1581 7 0 0 25 0 1 0 137994011 13864960 2360 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 3385 2360 94 219 0 3162 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13540

[startup+17.5015 s]
/proc/loadavg: 0.96 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1417872/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=15284 CPUtime=17.49
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 3158 0 0 0 1741 8 0 0 25 0 1 0 137994011 15650816 2416 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 3821 2416 94 219 0 3598 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 15284

[startup+19.1017 s]
/proc/loadavg: 0.96 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1417744/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=15576 CPUtime=19.08
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 3238 0 0 0 1900 8 0 0 25 0 1 0 137994011 15949824 2496 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559910 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 3894 2496 94 219 0 3671 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15576

[startup+19.9019 s]
/proc/loadavg: 0.96 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1417552/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=15576 CPUtime=19.88
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 3284 0 0 0 1980 8 0 0 25 0 1 0 137994011 15949824 2542 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547181 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 3894 2542 94 219 0 3671 0
Current children cumulated CPU time (s) 19.88
Current children cumulated vsize (KiB) 15576

[startup+20.1019 s]
/proc/loadavg: 0.96 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1417552/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=15576 CPUtime=20.08
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 3287 0 0 0 2000 8 0 0 25 0 1 0 137994011 15949824 2545 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 3894 2545 94 219 0 3671 0
Current children cumulated CPU time (s) 20.08
Current children cumulated vsize (KiB) 15576

[startup+20.2019 s]
/proc/loadavg: 0.96 0.99 0.99 2/65 21105
/proc/meminfo: memFree=1417552/2055920 swapFree=4169756/4192956
[pid=21104] ppid=21102 vsize=15576 CPUtime=20.18
/proc/21104/stat : 21104 (PBS4) R 21102 21104 19984 0 -1 4194304 3288 0 0 0 2010 8 0 0 25 0 1 0 137994011 15949824 2546 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134559742 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21104/statm: 3894 2546 94 219 0 3671 0
Current children cumulated CPU time (s) 20.18
Current children cumulated vsize (KiB) 15576

Child status: 0
Real time (s): 20.237
CPU time (s): 20.2279
CPU user time (s): 20.1369
CPU system time (s): 0.090986
CPU usage (%): 99.955
Max. virtual memory (cumulated for all children) (KiB): 15576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.1369
system time used= 0.090986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3304
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= 36

runsolver used 0.013997 second user time and 0.050992 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Wed Apr 18 12:52:49 UTC 2007

IDJOB= 357803
IDBENCH= 1169
IDSOLVER= 157
FILE ID= node25/357803-1176900769

PBS_JOBID= 4595143

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-t2001.13queen13.1110971363.opb
COMMAND LINE= /tmp/evaluation/357803-1176900769/PBS4 /tmp/evaluation/357803-1176900769/instance-357803-1176900769.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node25/convwatcher-357803-1176900769 -o ROOT/results/node25/conversion-357803-1176900769 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/357803-1176900769/instance-357803-1176900769.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-357803-1176900769 -o ROOT/results/node25/solver-357803-1176900769 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/357803-1176900769/PBS4 /tmp/evaluation/357803-1176900769/instance-357803-1176900769.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  62c1bb0e6cb74df266ce43b83653f19a

RANDOM SEED= 461612817

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:       1428080 kB
Buffers:         17180 kB
Cached:         543784 kB
SwapCached:      16900 kB
Active:         175900 kB
Inactive:       408176 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1428080 kB
SwapTotal:     4192956 kB
SwapFree:      4169756 kB
Dirty:            1216 kB
Writeback:           0 kB
Mapped:          15896 kB
Slab:            29876 kB
Committed_AS:  2127940 kB
PageTables:       1476 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 12:53:10 UTC 2007