Trace number 357957

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 16.8144 16.821

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110966688.opb
MD5SUM8e7a33f6f23050442c6613e25c3d2ac1
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 benchmark0.089986
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 1237
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/357957-1176906331/instance-357957-1176906331.opb ......
16.79/16.81	c done parsing opb.
16.79/16.81	s UNSATISFIABLE
16.79/16.81	c Total Run Time					16.8074

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/357957-1176906331/instance-357957-1176906331.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/node10/watcher-357957-1176906331 -o ROOT/results/node10/solver-357957-1176906331 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/357957-1176906331/PBS4 /tmp/evaluation/357957-1176906331/instance-357957-1176906331.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 1.01 1.00 3/77 21362
/proc/meminfo: memFree=1063928/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=1320 CPUtime=0
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 166670601 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 330 125 92 219 0 107 0

[startup+0.0243521 s]
/proc/loadavg: 0.97 1.01 1.00 3/77 21362
/proc/meminfo: memFree=1063928/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=1320 CPUtime=0.02
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 163 0 0 0 2 0 0 0 18 0 1 0 166670601 1351680 145 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 330 145 92 219 0 107 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1320

[startup+0.10137 s]
/proc/loadavg: 0.97 1.01 1.00 3/77 21362
/proc/meminfo: memFree=1063928/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=1456 CPUtime=0.09
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 226 0 0 0 9 0 0 0 18 0 1 0 166670601 1490944 208 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 364 208 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301412 s]
/proc/loadavg: 0.97 1.01 1.00 3/77 21362
/proc/meminfo: memFree=1063928/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=2388 CPUtime=0.29
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 354 0 0 0 29 0 0 0 19 0 1 0 166670601 2445312 336 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 597 336 93 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.701499 s]
/proc/loadavg: 0.97 1.01 1.00 3/77 21362
/proc/meminfo: memFree=1063928/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=3608 CPUtime=0.69
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 552 0 0 0 69 0 0 0 22 0 1 0 166670601 3694592 534 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 902 534 93 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.50167 s]
/proc/loadavg: 0.97 1.01 1.00 2/78 21363
/proc/meminfo: memFree=1061744/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=3932 CPUtime=1.49
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 869 0 0 0 148 1 0 0 25 0 1 0 166670601 4026368 802 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 983 802 94 219 0 760 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3932

[startup+3.10202 s]
/proc/loadavg: 0.97 1.01 1.00 2/78 21363
/proc/meminfo: memFree=1060336/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=6768 CPUtime=3.09
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 1315 0 0 0 307 2 0 0 25 0 1 0 166670601 6930432 1151 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 1692 1151 94 219 0 1469 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6768

[startup+6.30171 s]
/proc/loadavg: 0.97 1.01 1.00 2/78 21363
/proc/meminfo: memFree=1057720/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=11548 CPUtime=6.29
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 1856 0 0 0 625 4 0 0 25 0 1 0 166670601 11825152 1692 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 2887 1692 94 219 0 2664 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11548

[startup+12.7011 s]
/proc/loadavg: 0.97 1.01 1.00 2/78 21363
/proc/meminfo: memFree=1054840/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=13512 CPUtime=12.69
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 2721 0 0 0 1262 7 0 0 25 0 1 0 166670601 13836288 2364 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 3378 2364 94 219 0 3155 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13512

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

[startup+14.3054 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 21363
/proc/meminfo: memFree=1054264/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=13696 CPUtime=14.29
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 2806 0 0 0 1422 7 0 0 25 0 1 0 166670601 14024704 2449 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134549327 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 3424 2449 94 219 0 3201 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 13696

[startup+15.9018 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 21363
/proc/meminfo: memFree=1053944/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=14032 CPUtime=15.88
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 2901 0 0 0 1581 7 0 0 25 0 1 0 166670601 14368768 2544 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 3508 2544 94 219 0 3285 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 14032

[startup+16.3019 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 21363
/proc/meminfo: memFree=1053944/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=15568 CPUtime=16.29
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 3305 0 0 0 1621 8 0 0 25 0 1 0 166670601 15941632 2563 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 3892 2563 94 219 0 3669 0
Current children cumulated CPU time (s) 16.29
Current children cumulated vsize (KiB) 15568

[startup+16.7019 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 21363
/proc/meminfo: memFree=1053624/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=15568 CPUtime=16.69
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 3312 0 0 0 1661 8 0 0 25 0 1 0 166670601 15941632 2570 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 3892 2570 94 219 0 3669 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 15568

[startup+16.802 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 21363
/proc/meminfo: memFree=1053624/2055920 swapFree=4152288/4192956
[pid=21362] ppid=21360 vsize=15568 CPUtime=16.79
/proc/21362/stat : 21362 (PBS4) R 21360 21362 20071 0 -1 4194304 3314 0 0 0 1671 8 0 0 25 0 1 0 166670601 15941632 2572 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21362/statm: 3892 2572 94 219 0 3669 0
Current children cumulated CPU time (s) 16.79
Current children cumulated vsize (KiB) 15568

Child status: 0
Real time (s): 16.821
CPU time (s): 16.8144
CPU user time (s): 16.7305
CPU system time (s): 0.083987
CPU usage (%): 99.9611
Max. virtual memory (cumulated for all children) (KiB): 15568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.7305
system time used= 0.083987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3329
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= 14

runsolver used 0.024996 second user time and 0.043993 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Wed Apr 18 14:25:31 UTC 2007

IDJOB= 357957
IDBENCH= 1180
IDSOLVER= 157
FILE ID= node10/357957-1176906331

PBS_JOBID= 4595176

Free space on /tmp= 66270 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110966688.opb
COMMAND LINE= /tmp/evaluation/357957-1176906331/PBS4 /tmp/evaluation/357957-1176906331/instance-357957-1176906331.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node10/convwatcher-357957-1176906331 -o ROOT/results/node10/conversion-357957-1176906331 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/357957-1176906331/instance-357957-1176906331.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-357957-1176906331 -o ROOT/results/node10/solver-357957-1176906331 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/357957-1176906331/PBS4 /tmp/evaluation/357957-1176906331/instance-357957-1176906331.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  8e7a33f6f23050442c6613e25c3d2ac1

RANDOM SEED= 357259406

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:       1064336 kB
Buffers:         43884 kB
Cached:         859424 kB
SwapCached:       9048 kB
Active:         279480 kB
Inactive:       647280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1064336 kB
SwapTotal:     4192956 kB
SwapFree:      4152288 kB
Dirty:            1164 kB
Writeback:           0 kB
Mapped:          30216 kB
Slab:            50432 kB
Committed_AS:  3533116 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= 66270 MiB

End job on node10 on Wed Apr 18 14:25:48 UTC 2007