Trace number 458186

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 27.6958 27.7052

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111223004.opb
MD5SUM651d3a6cc64ca34df144139e51ae2bf7
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 benchmark1.9657
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 1227
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/458186-1178619717/instance-458186-1178619717.opb ......
27.58/27.70	c done parsing opb.
27.58/27.70	s UNSATISFIABLE
27.68/27.70	c Total Run Time					27.6888

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458186-1178619717/instance-458186-1178619717.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-458186-1178619717 -o ROOT/results/node41/solver-458186-1178619717 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458186-1178619717/instance-458186-1178619717.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: 0.98 0.97 0.99 3/77 24802
/proc/meminfo: memFree=1502792/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=1320 CPUtime=0
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 309883609 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 330 123 90 219 0 107 0

[startup+0.0178599 s]
/proc/loadavg: 0.98 0.97 0.99 3/77 24802
/proc/meminfo: memFree=1502792/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=1320 CPUtime=0.01
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 153 0 0 0 1 0 0 0 18 0 1 0 309883609 1351680 135 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 330 135 90 219 0 107 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1320

[startup+0.102868 s]
/proc/loadavg: 0.98 0.97 0.99 3/77 24802
/proc/meminfo: memFree=1502792/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=1452 CPUtime=0.1
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 211 0 0 0 10 0 0 0 18 0 1 0 309883609 1486848 193 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 363 193 90 219 0 140 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1452

[startup+0.301886 s]
/proc/loadavg: 0.98 0.97 0.99 3/77 24802
/proc/meminfo: memFree=1502792/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=1868 CPUtime=0.3
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 312 0 0 0 30 0 0 0 19 0 1 0 309883609 1912832 294 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 467 294 90 219 0 244 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1868

[startup+0.702919 s]
/proc/loadavg: 0.98 0.97 0.99 3/77 24802
/proc/meminfo: memFree=1502792/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=3600 CPUtime=0.69
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 494 0 0 0 69 0 0 0 23 0 1 0 309883609 3686400 476 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 900 476 90 219 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.50199 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24803
/proc/meminfo: memFree=1500736/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=3924 CPUtime=1.49
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 852 0 0 0 149 0 0 0 25 0 1 0 309883609 4018176 785 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 981 785 90 219 0 758 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3924

[startup+3.10113 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24803
/proc/meminfo: memFree=1498880/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=6892 CPUtime=3.09
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 1425 0 0 0 308 1 0 0 25 0 1 0 309883609 7057408 1261 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544719 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 1723 1261 90 219 0 1500 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6892

[startup+6.30141 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24803
/proc/meminfo: memFree=1496064/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=11660 CPUtime=6.29
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 2097 0 0 0 626 3 0 0 25 0 1 0 309883609 11939840 1933 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 2915 1933 90 219 0 2692 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11660

[startup+12.702 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 24803
/proc/meminfo: memFree=1491976/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=13304 CPUtime=12.68
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 3187 0 0 0 1262 6 0 0 25 0 1 0 309883609 13623296 2830 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 3326 2830 90 219 0 3103 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13304

[startup+25.5011 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 24803
/proc/meminfo: memFree=1489160/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=16360 CPUtime=25.48
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 4189 0 0 0 2538 10 0 0 25 0 1 0 309883609 16752640 3447 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 4090 3447 90 219 0 3867 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16360

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

[startup+27.1012 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 24803
/proc/meminfo: memFree=1488904/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=16596 CPUtime=27.08
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 4258 0 0 0 2698 10 0 0 25 0 1 0 309883609 16994304 3516 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544670 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 4149 3516 90 219 0 3926 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 16596

[startup+27.5043 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 24803
/proc/meminfo: memFree=1488712/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=16596 CPUtime=27.48
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194304 4275 0 0 0 2738 10 0 0 25 0 1 0 309883609 16994304 3533 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134557322 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 4149 3533 90 219 0 3926 0
Current children cumulated CPU time (s) 27.48
Current children cumulated vsize (KiB) 16596

[startup+27.7013 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 24803
/proc/meminfo: memFree=1488712/2055920 swapFree=4169412/4192956
[pid=24802] ppid=24800 vsize=0 CPUtime=27.68
/proc/24802/stat : 24802 (PBS4_SAT07v2) R 24800 24802 23489 0 -1 4194308 4294 0 0 0 2758 10 0 0 25 0 1 0 309883609 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24802/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 27.68
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 27.7052
CPU time (s): 27.6958
CPU user time (s): 27.5828
CPU system time (s): 0.112982
CPU usage (%): 99.9662
Max. virtual memory (cumulated for all children) (KiB): 16596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.5828
system time used= 0.112982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4294
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= 580

runsolver used 0.027995 second user time and 0.066989 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue May  8 10:21:57 UTC 2007

IDJOB= 458186
IDBENCH= 1263
IDSOLVER= 200
FILE ID= node41/458186-1178619717

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-t2001.13queen13.1111223004.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458186-1178619717/instance-458186-1178619717.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node41/convwatcher-458186-1178619717 -o ROOT/results/node41/conversion-458186-1178619717 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458186-1178619717/instance-458186-1178619717.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-458186-1178619717 -o ROOT/results/node41/solver-458186-1178619717 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458186-1178619717/instance-458186-1178619717.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  651d3a6cc64ca34df144139e51ae2bf7

RANDOM SEED= 508914279

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:       1503200 kB
Buffers:         40488 kB
Cached:         387424 kB
SwapCached:       3072 kB
Active:         142648 kB
Inactive:       309660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1503200 kB
SwapTotal:     4192956 kB
SwapFree:      4169412 kB
Dirty:            2372 kB
Writeback:           0 kB
Mapped:          31936 kB
Slab:            85676 kB
Committed_AS:  8578088 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 10:22:25 UTC 2007