Trace number 358377

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 27.8068 27.8201

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111221203.opb
MD5SUM85d02cb4edf665957c01ae4f54b30e83
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 benchmark0.355945
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/358377-1176914939/instance-358377-1176914939.opb ......
27.77/27.81	c done parsing opb.
27.77/27.81	s UNSATISFIABLE
27.77/27.81	c Total Run Time					27.8008

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358377-1176914939/instance-358377-1176914939.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/node33/watcher-358377-1176914939 -o ROOT/results/node33/solver-358377-1176914939 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358377-1176914939/PBS4 /tmp/evaluation/358377-1176914939/instance-358377-1176914939.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: 0.91 0.95 0.98 3/77 27233
/proc/meminfo: memFree=1826552/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=1320 CPUtime=0
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 139409431 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 330 125 92 219 0 107 0

[startup+0.0951439 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 27233
/proc/meminfo: memFree=1826552/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=1464 CPUtime=0.09
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 202 0 0 0 9 0 0 0 18 0 1 0 139409431 1499136 184 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 366 184 92 219 0 143 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1464

[startup+0.101144 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 27233
/proc/meminfo: memFree=1826552/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=1464 CPUtime=0.09
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 211 0 0 0 9 0 0 0 18 0 1 0 139409431 1499136 193 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 366 193 92 219 0 143 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1464

[startup+0.301185 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 27233
/proc/meminfo: memFree=1826552/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=1876 CPUtime=0.29
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 316 0 0 0 29 0 0 0 19 0 1 0 139409431 1921024 298 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 469 298 93 219 0 246 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1876

[startup+0.701267 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 27233
/proc/meminfo: memFree=1826552/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=3608 CPUtime=0.69
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 508 0 0 0 69 0 0 0 23 0 1 0 139409431 3694592 490 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 902 490 93 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.50143 s]
/proc/loadavg: 0.91 0.95 0.98 2/78 27234
/proc/meminfo: memFree=1824560/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=5984 CPUtime=1.49
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 880 0 0 0 148 1 0 0 25 0 1 0 139409431 6127616 813 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 1496 813 94 219 0 1273 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5984

[startup+3.10176 s]
/proc/loadavg: 0.91 0.95 0.98 2/78 27234
/proc/meminfo: memFree=1822576/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=6780 CPUtime=3.09
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 1479 0 0 0 307 2 0 0 25 0 1 0 139409431 6942720 1315 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 1695 1315 94 219 0 1472 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6780

[startup+6.30142 s]
/proc/loadavg: 0.92 0.95 0.98 2/78 27234
/proc/meminfo: memFree=1819248/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=11548 CPUtime=6.29
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 2201 0 0 0 626 3 0 0 25 0 1 0 139409431 11825152 2037 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 2887 2037 94 219 0 2664 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11548

[startup+12.7017 s]
/proc/loadavg: 0.93 0.95 0.98 2/78 27234
/proc/meminfo: memFree=1816120/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=13456 CPUtime=12.69
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 3013 0 0 0 1264 5 0 0 25 0 1 0 139409431 13778944 2656 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 3364 2656 94 219 0 3141 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13456

[startup+25.5014 s]
/proc/loadavg: 0.94 0.96 0.98 2/78 27234
/proc/meminfo: memFree=1814200/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=16272 CPUtime=25.48
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 3873 0 0 0 2539 9 0 0 25 0 1 0 139409431 16662528 3131 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 4068 3131 94 219 0 3845 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16272

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

[startup+27.1017 s]
/proc/loadavg: 0.94 0.96 0.98 2/78 27234
/proc/meminfo: memFree=1813752/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=16480 CPUtime=27.08
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 3978 0 0 0 2699 9 0 0 25 0 1 0 139409431 16875520 3236 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 4120 3236 94 219 0 3897 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 16480

[startup+27.5058 s]
/proc/loadavg: 0.94 0.96 0.98 2/78 27234
/proc/meminfo: memFree=1813688/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=16480 CPUtime=27.48
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 3983 0 0 0 2739 9 0 0 25 0 1 0 139409431 16875520 3241 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 4120 3241 94 219 0 3897 0
Current children cumulated CPU time (s) 27.48
Current children cumulated vsize (KiB) 16480

[startup+27.7018 s]
/proc/loadavg: 0.94 0.96 0.98 2/78 27234
/proc/meminfo: memFree=1813688/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=16480 CPUtime=27.67
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 3985 0 0 0 2758 9 0 0 25 0 1 0 139409431 16875520 3243 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 4120 3243 94 219 0 3897 0
Current children cumulated CPU time (s) 27.67
Current children cumulated vsize (KiB) 16480

[startup+27.8018 s]
/proc/loadavg: 0.94 0.96 0.98 2/78 27234
/proc/meminfo: memFree=1813688/2055920 swapFree=4175396/4192956
[pid=27233] ppid=27231 vsize=16480 CPUtime=27.77
/proc/27233/stat : 27233 (PBS4) R 27231 27233 26205 0 -1 4194304 3986 0 0 0 2768 9 0 0 25 0 1 0 139409431 16875520 3244 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27233/statm: 4120 3244 94 219 0 3897 0
Current children cumulated CPU time (s) 27.77
Current children cumulated vsize (KiB) 16480

Child status: 0
Real time (s): 27.8201
CPU time (s): 27.8068
CPU user time (s): 27.7048
CPU system time (s): 0.101984
CPU usage (%): 99.952
Max. virtual memory (cumulated for all children) (KiB): 16480

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.7048
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4001
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= 592

runsolver used 0.030995 second user time and 0.075988 second system time

The end

Launcher Data (download as text)

Begin job on node33 on Wed Apr 18 16:48:59 UTC 2007

IDJOB= 358377
IDBENCH= 1210
IDSOLVER= 157
FILE ID= node33/358377-1176914939

PBS_JOBID= 4595204

Free space on /tmp= 66476 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111221203.opb
COMMAND LINE= /tmp/evaluation/358377-1176914939/PBS4 /tmp/evaluation/358377-1176914939/instance-358377-1176914939.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node33/convwatcher-358377-1176914939 -o ROOT/results/node33/conversion-358377-1176914939 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358377-1176914939/instance-358377-1176914939.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-358377-1176914939 -o ROOT/results/node33/solver-358377-1176914939 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358377-1176914939/PBS4 /tmp/evaluation/358377-1176914939/instance-358377-1176914939.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  85d02cb4edf665957c01ae4f54b30e83

RANDOM SEED= 163220151

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node33.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		: 3000.272
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		: 3000.272
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:       1827024 kB
Buffers:         14908 kB
Cached:          81456 kB
SwapCached:       2168 kB
Active:         106224 kB
Inactive:        68864 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1827024 kB
SwapTotal:     4192956 kB
SwapFree:      4175396 kB
Dirty:            1256 kB
Writeback:           0 kB
Mapped:          93792 kB
Slab:            39100 kB
Committed_AS:  1651152 kB
PageTables:       1996 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= 66476 MiB

End job on node33 on Wed Apr 18 16:49:28 UTC 2007