Trace number 358083

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 13.9039 13.9046

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110977780.opb
MD5SUMadb656a15e659ae7735494d2d3ad9316
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 benchmark0.015997
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 1327
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/358083-1176912654/instance-358083-1176912654.opb ......
13.79/13.90	c done parsing opb.
13.79/13.90	s UNSATISFIABLE
13.79/13.90	c Total Run Time					13.8969

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358083-1176912654/instance-358083-1176912654.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/node16/watcher-358083-1176912654 -o ROOT/results/node16/solver-358083-1176912654 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358083-1176912654/PBS4 /tmp/evaluation/358083-1176912654/instance-358083-1176912654.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: 1.01 1.00 1.00 3/77 4713
/proc/meminfo: memFree=1499952/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=1320 CPUtime=0
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 139183094 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 330 125 92 219 0 107 0

[startup+0.094771 s]
/proc/loadavg: 1.01 1.00 1.00 3/77 4713
/proc/meminfo: memFree=1499952/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=1456 CPUtime=0.09
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 182 0 0 0 9 0 0 0 18 0 1 0 139183094 1490944 164 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 364 164 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.101768 s]
/proc/loadavg: 1.01 1.00 1.00 3/77 4713
/proc/meminfo: memFree=1499952/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=1456 CPUtime=0.09
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 185 0 0 0 9 0 0 0 18 0 1 0 139183094 1490944 167 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 364 167 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301728 s]
/proc/loadavg: 1.01 1.00 1.00 3/77 4713
/proc/meminfo: memFree=1499952/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=1864 CPUtime=0.29
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 299 0 0 0 29 0 0 0 19 0 1 0 139183094 1908736 281 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 466 281 93 219 0 243 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1864

[startup+0.701644 s]
/proc/loadavg: 1.01 1.00 1.00 3/77 4713
/proc/meminfo: memFree=1499952/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=3524 CPUtime=0.69
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 488 0 0 0 69 0 0 0 23 0 1 0 139183094 3608576 470 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 881 470 93 219 0 658 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3524

[startup+1.50148 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 4714
/proc/meminfo: memFree=1497960/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=3980 CPUtime=1.49
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 836 0 0 0 148 1 0 0 25 0 1 0 139183094 4075520 769 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 995 769 94 219 0 772 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3980

[startup+3.10115 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 4714
/proc/meminfo: memFree=1496552/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=6824 CPUtime=3.09
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 1300 0 0 0 307 2 0 0 25 0 1 0 139183094 6987776 1136 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 1706 1136 94 219 0 1483 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6824

[startup+6.30149 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 4714
/proc/meminfo: memFree=1494312/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=8272 CPUtime=6.29
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 1908 0 0 0 626 3 0 0 25 0 1 0 139183094 8470528 1551 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134549298 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 2068 1551 94 219 0 1845 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8272

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 4714
/proc/meminfo: memFree=1491952/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=13384 CPUtime=12.7
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 2537 0 0 0 1264 6 0 0 25 0 1 0 139183094 13705216 2180 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134532268 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 3346 2180 94 219 0 3123 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 13384

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

[startup+13.502 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 4714
/proc/meminfo: memFree=1490928/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=13732 CPUtime=13.49
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194304 2659 0 0 0 1343 6 0 0 25 0 1 0 139183094 14061568 2302 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 3433 2302 94 219 0 3210 0
Current children cumulated CPU time (s) 13.49
Current children cumulated vsize (KiB) 13732

[startup+13.9019 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 4714
/proc/meminfo: memFree=1490928/2055920 swapFree=4139340/4192956
[pid=4713] ppid=4711 vsize=0 CPUtime=13.89
/proc/4713/stat : 4713 (PBS4) R 4711 4713 3814 0 -1 4194308 2724 0 0 0 1383 6 0 0 25 0 1 0 139183094 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4713/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 13.89
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 13.9046
CPU time (s): 13.9039
CPU user time (s): 13.8379
CPU system time (s): 0.065989
CPU usage (%): 99.9952
Max. virtual memory (cumulated for all children) (KiB): 13732

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.8379
system time used= 0.065989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2724
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= 284

runsolver used 0.024996 second user time and 0.031995 second system time

The end

Launcher Data (download as text)

Begin job on node16 on Wed Apr 18 16:10:55 UTC 2007

IDJOB= 358083
IDBENCH= 1189
IDSOLVER= 157
FILE ID= node16/358083-1176912654

PBS_JOBID= 4595202

Free space on /tmp= 66360 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110977780.opb
COMMAND LINE= /tmp/evaluation/358083-1176912654/PBS4 /tmp/evaluation/358083-1176912654/instance-358083-1176912654.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node16/convwatcher-358083-1176912654 -o ROOT/results/node16/conversion-358083-1176912654 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358083-1176912654/instance-358083-1176912654.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-358083-1176912654 -o ROOT/results/node16/solver-358083-1176912654 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358083-1176912654/PBS4 /tmp/evaluation/358083-1176912654/instance-358083-1176912654.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  adb656a15e659ae7735494d2d3ad9316

RANDOM SEED= 768685837

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node16.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:       1500424 kB
Buffers:         33764 kB
Cached:         425528 kB
SwapCached:      21400 kB
Active:         106108 kB
Inactive:       385872 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1500424 kB
SwapTotal:     4192956 kB
SwapFree:      4139340 kB
Dirty:            1252 kB
Writeback:           0 kB
Mapped:          30444 kB
Slab:            49064 kB
Committed_AS:  6439152 kB
PageTables:       1836 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= 66360 MiB

End job on node16 on Wed Apr 18 16:11:09 UTC 2007