Trace number 358153

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 20.4009 20.4082

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111213868.opb
MD5SUMab9355d4d11f3d384bbd2382ecf28a15
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 benchmark0.494924
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 1199
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/358153-1176913530/instance-358153-1176913530.opb ......
20.38/20.40	c done parsing opb.
20.38/20.40	s UNSATISFIABLE
20.38/20.40	c Total Run Time					20.3929

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358153-1176913530/instance-358153-1176913530.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/node3/watcher-358153-1176913530 -o ROOT/results/node3/solver-358153-1176913530 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358153-1176913530/PBS4 /tmp/evaluation/358153-1176913530/instance-358153-1176913530.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: 0.83 0.95 0.98 3/77 4606
/proc/meminfo: memFree=1511456/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=1320 CPUtime=0
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 167390734 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 330 125 92 219 0 107 0

[startup+0.077844 s]
/proc/loadavg: 0.83 0.95 0.98 3/77 4606
/proc/meminfo: memFree=1511456/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=1452 CPUtime=0.07
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 192 0 0 0 7 0 0 0 18 0 1 0 167390734 1486848 174 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 363 174 92 219 0 140 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1452

[startup+0.101848 s]
/proc/loadavg: 0.83 0.95 0.98 3/77 4606
/proc/meminfo: memFree=1511456/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=1452 CPUtime=0.09
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 213 0 0 0 9 0 0 0 18 0 1 0 167390734 1486848 195 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 363 195 92 219 0 140 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1452

[startup+0.301881 s]
/proc/loadavg: 0.83 0.95 0.98 3/77 4606
/proc/meminfo: memFree=1511456/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=2380 CPUtime=0.29
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 331 0 0 0 29 0 0 0 19 0 1 0 167390734 2437120 313 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 595 313 93 219 0 372 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2380

[startup+0.701945 s]
/proc/loadavg: 0.83 0.95 0.98 3/77 4606
/proc/meminfo: memFree=1511456/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=3600 CPUtime=0.69
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 538 0 0 0 68 1 0 0 23 0 1 0 167390734 3686400 520 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 900 520 93 219 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.50107 s]
/proc/loadavg: 0.83 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1509272/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=3924 CPUtime=1.49
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 867 0 0 0 148 1 0 0 25 0 1 0 167390734 4018176 800 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 981 800 94 219 0 758 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3924

[startup+3.10133 s]
/proc/loadavg: 0.83 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1507736/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=6752 CPUtime=3.09
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 1402 0 0 0 307 2 0 0 25 0 1 0 167390734 6914048 1238 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 1688 1238 94 219 0 1465 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6752

[startup+6.30185 s]
/proc/loadavg: 0.84 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1505176/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=7436 CPUtime=6.29
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 1809 0 0 0 625 4 0 0 25 0 1 0 167390734 7614464 1645 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134549602 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 1859 1645 94 219 0 1636 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7436

[startup+12.7019 s]
/proc/loadavg: 0.85 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1503064/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=13284 CPUtime=12.69
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 2508 0 0 0 1262 7 0 0 25 0 1 0 167390734 13602816 2151 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 3321 2151 94 219 0 3098 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13284

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

[startup+15.9014 s]
/proc/loadavg: 0.87 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1502360/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=13736 CPUtime=15.89
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 2683 0 0 0 1581 8 0 0 25 0 1 0 167390734 14065664 2326 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 3434 2326 94 219 0 3211 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 13736

[startup+17.5017 s]
/proc/loadavg: 0.87 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1501784/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=15624 CPUtime=17.48
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 3192 0 0 0 1740 8 0 0 25 0 1 0 167390734 15998976 2450 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 3906 2450 94 219 0 3683 0
Current children cumulated CPU time (s) 17.48
Current children cumulated vsize (KiB) 15624

[startup+19.1019 s]
/proc/loadavg: 0.87 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1501592/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=15820 CPUtime=19.09
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 3251 0 0 0 1900 9 0 0 25 0 1 0 167390734 16199680 2509 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 3955 2509 94 219 0 3732 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 15820

[startup+19.9011 s]
/proc/loadavg: 0.88 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1501400/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=15820 CPUtime=19.88
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 3284 0 0 0 1979 9 0 0 25 0 1 0 167390734 16199680 2542 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 3955 2542 94 219 0 3732 0
Current children cumulated CPU time (s) 19.88
Current children cumulated vsize (KiB) 15820

[startup+20.3011 s]
/proc/loadavg: 0.88 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1501400/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=15820 CPUtime=20.28
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 3292 0 0 0 2019 9 0 0 25 0 1 0 167390734 16199680 2550 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547071 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 3955 2550 94 219 0 3732 0
Current children cumulated CPU time (s) 20.28
Current children cumulated vsize (KiB) 15820

[startup+20.4011 s]
/proc/loadavg: 0.88 0.95 0.98 2/78 4607
/proc/meminfo: memFree=1501400/2055920 swapFree=4140660/4192956
[pid=4606] ppid=4604 vsize=15820 CPUtime=20.38
/proc/4606/stat : 4606 (PBS4) R 4604 4606 3539 0 -1 4194304 3295 0 0 0 2029 9 0 0 25 0 1 0 167390734 16199680 2553 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4606/statm: 3955 2553 94 219 0 3732 0
Current children cumulated CPU time (s) 20.38
Current children cumulated vsize (KiB) 15820

Child status: 0
Real time (s): 20.4082
CPU time (s): 20.4009
CPU user time (s): 20.2999
CPU system time (s): 0.100984
CPU usage (%): 99.9644
Max. virtual memory (cumulated for all children) (KiB): 15820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.2999
system time used= 0.100984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3310
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= 27

runsolver used 0.021996 second user time and 0.058991 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Wed Apr 18 16:25:30 UTC 2007

IDJOB= 358153
IDBENCH= 1194
IDSOLVER= 157
FILE ID= node3/358153-1176913530

PBS_JOBID= 4595193

Free space on /tmp= 66358 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111213868.opb
COMMAND LINE= /tmp/evaluation/358153-1176913530/PBS4 /tmp/evaluation/358153-1176913530/instance-358153-1176913530.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node3/convwatcher-358153-1176913530 -o ROOT/results/node3/conversion-358153-1176913530 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358153-1176913530/instance-358153-1176913530.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-358153-1176913530 -o ROOT/results/node3/solver-358153-1176913530 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358153-1176913530/PBS4 /tmp/evaluation/358153-1176913530/instance-358153-1176913530.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  ab9355d4d11f3d384bbd2382ecf28a15

RANDOM SEED= 140462756

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.270
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		: 3000.270
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:       1511928 kB
Buffers:         29956 kB
Cached:         447976 kB
SwapCached:      15204 kB
Active:          57748 kB
Inactive:       443676 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1511928 kB
SwapTotal:     4192956 kB
SwapFree:      4140660 kB
Dirty:            1176 kB
Writeback:           0 kB
Mapped:          30456 kB
Slab:            28112 kB
Committed_AS:  5207764 kB
PageTables:       1780 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= 66358 MiB

End job on node3 on Wed Apr 18 16:25:50 UTC 2007