Trace number 358181

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 17.6583 17.6639

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110974372.opb
MD5SUMc554a2f9e460ec54fba106ea9f102f78
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 benchmark0.011997
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 1266
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/358181-1176913811/instance-358181-1176913811.opb ......
17.59/17.66	c done parsing opb.
17.59/17.66	s UNSATISFIABLE
17.59/17.66	c Total Run Time					17.6523

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358181-1176913811/instance-358181-1176913811.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/node72/watcher-358181-1176913811 -o ROOT/results/node72/solver-358181-1176913811 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358181-1176913811/PBS4 /tmp/evaluation/358181-1176913811/instance-358181-1176913811.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 1.00 0.99 3/77 24170
/proc/meminfo: memFree=1334256/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=1320 CPUtime=0
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 167419545 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 330 125 92 219 0 107 0

[startup+0.087925 s]
/proc/loadavg: 0.98 1.00 0.99 3/77 24170
/proc/meminfo: memFree=1334256/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=1456 CPUtime=0.08
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 192 0 0 0 8 0 0 0 18 0 1 0 167419545 1490944 174 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 364 174 92 219 0 141 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1456

[startup+0.101926 s]
/proc/loadavg: 0.98 1.00 0.99 3/77 24170
/proc/meminfo: memFree=1334256/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=1456 CPUtime=0.09
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 198 0 0 0 9 0 0 0 18 0 1 0 167419545 1490944 180 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 364 180 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301944 s]
/proc/loadavg: 0.98 1.00 0.99 3/77 24170
/proc/meminfo: memFree=1334256/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=2380 CPUtime=0.29
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 321 0 0 0 29 0 0 0 19 0 1 0 167419545 2437120 303 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 595 303 93 219 0 372 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2380

[startup+0.70198 s]
/proc/loadavg: 0.98 1.00 0.99 3/77 24170
/proc/meminfo: memFree=1334256/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=3600 CPUtime=0.69
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 496 0 0 0 69 0 0 0 22 0 1 0 167419545 3686400 478 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 900 478 93 219 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.50105 s]
/proc/loadavg: 0.98 1.00 0.99 2/78 24171
/proc/meminfo: memFree=1332328/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=3924 CPUtime=1.49
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 809 0 0 0 149 0 0 0 25 0 1 0 167419545 4018176 742 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 981 742 94 219 0 758 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3924

[startup+3.1012 s]
/proc/loadavg: 0.98 1.00 0.99 2/78 24171
/proc/meminfo: memFree=1330664/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=6752 CPUtime=3.09
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 1359 0 0 0 307 2 0 0 25 0 1 0 167419545 6914048 1195 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 1688 1195 94 219 0 1465 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6752

[startup+6.30149 s]
/proc/loadavg: 0.98 1.00 0.99 2/78 24171
/proc/meminfo: memFree=1328680/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=7432 CPUtime=6.29
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 1802 0 0 0 627 2 0 0 25 0 1 0 167419545 7610368 1638 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 1858 1638 94 219 0 1635 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7432

[startup+12.7011 s]
/proc/loadavg: 0.98 1.00 0.99 2/78 24171
/proc/meminfo: memFree=1326632/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=9016 CPUtime=12.69
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 2332 0 0 0 1264 5 0 0 25 0 1 0 167419545 9232384 1975 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 2254 1975 94 219 0 2031 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 9016

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

[startup+15.9014 s]
/proc/loadavg: 0.98 1.00 0.99 2/78 24171
/proc/meminfo: memFree=1325928/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=9548 CPUtime=15.89
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 2501 0 0 0 1583 6 0 0 25 0 1 0 167419545 9777152 2144 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 2387 2144 94 219 0 2164 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 9548

[startup+16.7014 s]
/proc/loadavg: 0.98 1.00 0.99 2/78 24171
/proc/meminfo: memFree=1325800/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=9548 CPUtime=16.69
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 2514 0 0 0 1663 6 0 0 25 0 1 0 167419545 9777152 2157 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 2387 2157 94 219 0 2164 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 9548

[startup+17.1015 s]
/proc/loadavg: 0.98 1.00 0.99 2/78 24171
/proc/meminfo: memFree=1325800/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=9548 CPUtime=17.08
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 2551 0 0 0 1702 6 0 0 25 0 1 0 167419545 9777152 2194 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 2387 2194 94 219 0 2164 0
Current children cumulated CPU time (s) 17.08
Current children cumulated vsize (KiB) 9548

[startup+17.5015 s]
/proc/loadavg: 0.98 1.00 0.99 2/78 24171
/proc/meminfo: memFree=1325032/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=15484 CPUtime=17.49
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 3079 0 0 0 1742 7 0 0 25 0 1 0 167419545 15855616 2337 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 3871 2337 94 219 0 3648 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 15484

[startup+17.6055 s]
/proc/loadavg: 0.98 1.00 0.99 2/78 24171
/proc/meminfo: memFree=1325032/2055920 swapFree=4156508/4192956
[pid=24170] ppid=24168 vsize=15484 CPUtime=17.59
/proc/24170/stat : 24170 (PBS4) R 24168 24170 23181 0 -1 4194304 3080 0 0 0 1752 7 0 0 25 0 1 0 167419545 15855616 2338 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24170/statm: 3871 2338 94 219 0 3648 0
Current children cumulated CPU time (s) 17.59
Current children cumulated vsize (KiB) 15484

Child status: 0
Real time (s): 17.6639
CPU time (s): 17.6583
CPU user time (s): 17.5833
CPU system time (s): 0.074988
CPU usage (%): 99.9686
Max. virtual memory (cumulated for all children) (KiB): 15484

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.5833
system time used= 0.074988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3097
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= 35

runsolver used 0.019996 second user time and 0.053991 second system time

The end

Launcher Data (download as text)

Begin job on node72 on Wed Apr 18 16:30:11 UTC 2007

IDJOB= 358181
IDBENCH= 1196
IDSOLVER= 157
FILE ID= node72/358181-1176913811

PBS_JOBID= 4595201

Free space on /tmp= 66407 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110974372.opb
COMMAND LINE= /tmp/evaluation/358181-1176913811/PBS4 /tmp/evaluation/358181-1176913811/instance-358181-1176913811.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node72/convwatcher-358181-1176913811 -o ROOT/results/node72/conversion-358181-1176913811 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358181-1176913811/instance-358181-1176913811.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node72/watcher-358181-1176913811 -o ROOT/results/node72/solver-358181-1176913811 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358181-1176913811/PBS4 /tmp/evaluation/358181-1176913811/instance-358181-1176913811.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  c554a2f9e460ec54fba106ea9f102f78

RANDOM SEED= 328195923

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node72.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		: 3000.222
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	: 5931.00
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		: 3000.222
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:       1334664 kB
Buffers:         34376 kB
Cached:         600456 kB
SwapCached:      17492 kB
Active:         142480 kB
Inactive:       515968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1334664 kB
SwapTotal:     4192956 kB
SwapFree:      4156508 kB
Dirty:            1180 kB
Writeback:           0 kB
Mapped:          30068 kB
Slab:            48296 kB
Committed_AS:  2711296 kB
PageTables:       1788 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= 66407 MiB

End job on node72 on Wed Apr 18 16:30:29 UTC 2007