Trace number 358573

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 18.1572 18.162

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111226680.opb
MD5SUM35d60df2826d5cfd1cfef4e444dfafed
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 benchmark0.141977
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 1190
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/358573-1176916404/instance-358573-1176916404.opb ......
18.09/18.15	c done parsing opb.
18.09/18.15	s UNSATISFIABLE
18.09/18.15	c Total Run Time					18.1492

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358573-1176916404/instance-358573-1176916404.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/node14/watcher-358573-1176916404 -o ROOT/results/node14/solver-358573-1176916404 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358573-1176916404/PBS4 /tmp/evaluation/358573-1176916404/instance-358573-1176916404.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: 0.90 0.95 0.97 3/77 8750
/proc/meminfo: memFree=1917256/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=1320 CPUtime=0
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 139558132 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 330 125 92 219 0 107 0

[startup+0.033143 s]
/proc/loadavg: 0.90 0.95 0.97 3/77 8750
/proc/meminfo: memFree=1917256/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=1320 CPUtime=0.03
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 160 0 0 0 3 0 0 0 18 0 1 0 139558132 1351680 142 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 330 142 92 219 0 107 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1320

[startup+0.101147 s]
/proc/loadavg: 0.90 0.95 0.97 3/77 8750
/proc/meminfo: memFree=1917256/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=1452 CPUtime=0.1
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 197 0 0 0 10 0 0 0 18 0 1 0 139558132 1486848 179 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 363 179 92 219 0 140 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1452

[startup+0.301167 s]
/proc/loadavg: 0.90 0.95 0.97 3/77 8750
/proc/meminfo: memFree=1917256/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=2384 CPUtime=0.3
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 318 0 0 0 30 0 0 0 19 0 1 0 139558132 2441216 300 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 596 300 93 219 0 373 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2384

[startup+0.701205 s]
/proc/loadavg: 0.90 0.95 0.97 3/77 8750
/proc/meminfo: memFree=1917256/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=3604 CPUtime=0.69
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 526 0 0 0 69 0 0 0 23 0 1 0 139558132 3690496 508 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 901 508 93 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.50228 s]
/proc/loadavg: 0.90 0.95 0.97 2/78 8751
/proc/meminfo: memFree=1914880/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=6108 CPUtime=1.49
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 906 0 0 0 149 0 0 0 25 0 1 0 139558132 6254592 839 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134549316 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 1527 839 94 219 0 1304 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6108

[startup+3.10143 s]
/proc/loadavg: 0.90 0.95 0.97 2/78 8751
/proc/meminfo: memFree=1913408/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=6768 CPUtime=3.09
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 1447 0 0 0 308 1 0 0 25 0 1 0 139558132 6930432 1283 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547154 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 1692 1283 94 219 0 1469 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6768

[startup+6.30173 s]
/proc/loadavg: 0.90 0.95 0.97 2/78 8751
/proc/meminfo: memFree=1910656/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=11412 CPUtime=6.29
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 1919 0 0 0 627 2 0 0 25 0 1 0 139558132 11685888 1755 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 2853 1755 94 219 0 2630 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11412

[startup+12.7013 s]
/proc/loadavg: 0.91 0.95 0.97 2/78 8751
/proc/meminfo: memFree=1908544/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=13208 CPUtime=12.69
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 2625 0 0 0 1265 4 0 0 25 0 1 0 139558132 13524992 2268 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 3302 2268 94 219 0 3079 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13208

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

[startup+15.9016 s]
/proc/loadavg: 0.92 0.96 0.97 2/78 8751
/proc/meminfo: memFree=1907712/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=13648 CPUtime=15.89
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 2822 0 0 0 1584 5 0 0 25 0 1 0 139558132 13975552 2465 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 3412 2465 94 219 0 3189 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 13648

[startup+17.5018 s]
/proc/loadavg: 0.92 0.96 0.97 2/78 8751
/proc/meminfo: memFree=1907072/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=13984 CPUtime=17.49
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 2953 0 0 0 1744 5 0 0 25 0 1 0 139558132 14319616 2596 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 3496 2596 94 219 0 3273 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 13984

[startup+17.9018 s]
/proc/loadavg: 0.92 0.96 0.97 2/78 8751
/proc/meminfo: memFree=1907072/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=15520 CPUtime=17.89
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 3345 0 0 0 1783 6 0 0 25 0 1 0 139558132 15892480 2603 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 3880 2603 94 219 0 3657 0
Current children cumulated CPU time (s) 17.89
Current children cumulated vsize (KiB) 15520

[startup+18.1019 s]
/proc/loadavg: 0.92 0.96 0.97 2/78 8751
/proc/meminfo: memFree=1907072/2055920 swapFree=4148736/4192956
[pid=8750] ppid=8748 vsize=15520 CPUtime=18.09
/proc/8750/stat : 8750 (PBS4) R 8748 8750 8362 0 -1 4194304 3350 0 0 0 1803 6 0 0 25 0 1 0 139558132 15892480 2608 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8750/statm: 3880 2608 94 219 0 3657 0
Current children cumulated CPU time (s) 18.09
Current children cumulated vsize (KiB) 15520

Child status: 0
Real time (s): 18.162
CPU time (s): 18.1572
CPU user time (s): 18.0882
CPU system time (s): 0.068989
CPU usage (%): 99.9739
Max. virtual memory (cumulated for all children) (KiB): 15520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.0882
system time used= 0.068989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3366
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= 364

runsolver used 0.029995 second user time and 0.043993 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Wed Apr 18 17:13:24 UTC 2007

IDJOB= 358573
IDBENCH= 1224
IDSOLVER= 157
FILE ID= node14/358573-1176916404

PBS_JOBID= 4605634

Free space on /tmp= 66207 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111226680.opb
COMMAND LINE= /tmp/evaluation/358573-1176916404/PBS4 /tmp/evaluation/358573-1176916404/instance-358573-1176916404.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node14/convwatcher-358573-1176916404 -o ROOT/results/node14/conversion-358573-1176916404 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358573-1176916404/instance-358573-1176916404.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-358573-1176916404 -o ROOT/results/node14/solver-358573-1176916404 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358573-1176916404/PBS4 /tmp/evaluation/358573-1176916404/instance-358573-1176916404.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  35d60df2826d5cfd1cfef4e444dfafed

RANDOM SEED= 863022769

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.227
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		: 3000.227
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:       1917792 kB
Buffers:         13224 kB
Cached:          63080 kB
SwapCached:      11076 kB
Active:          48088 kB
Inactive:        50624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1917792 kB
SwapTotal:     4192956 kB
SwapFree:      4148736 kB
Dirty:            1172 kB
Writeback:           0 kB
Mapped:          29700 kB
Slab:            25028 kB
Committed_AS:  6605796 kB
PageTables:       1784 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= 66207 MiB

End job on node14 on Wed Apr 18 17:13:42 UTC 2007