Trace number 358853

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 26.155 26.2163

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111221624.opb
MD5SUM1cbab9bec076c91ef9a04fed1aa2ec63
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 benchmark0.292954
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 1248
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/358853-1176918062/instance-358853-1176918062.opb ......
26.08/26.16	c done parsing opb.
26.08/26.16	s UNSATISFIABLE
26.08/26.16	c Total Run Time					26.148

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358853-1176918062/instance-358853-1176918062.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/node47/watcher-358853-1176918062 -o ROOT/results/node47/solver-358853-1176918062 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358853-1176918062/PBS4 /tmp/evaluation/358853-1176918062/instance-358853-1176918062.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: 0.82 0.92 0.97 3/77 7954
/proc/meminfo: memFree=1510016/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=1320 CPUtime=0
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 46651581 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 330 125 92 219 0 107 0

[startup+0.0121349 s]
/proc/loadavg: 0.82 0.92 0.97 3/77 7954
/proc/meminfo: memFree=1510016/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=1320 CPUtime=0.01
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 147 0 0 0 1 0 0 0 18 0 1 0 46651581 1351680 129 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 330 129 92 219 0 107 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1320

[startup+0.101145 s]
/proc/loadavg: 0.82 0.92 0.97 3/77 7954
/proc/meminfo: memFree=1510016/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=1456 CPUtime=0.09
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 214 0 0 0 9 0 0 0 18 0 1 0 46651581 1490944 196 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 364 196 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301167 s]
/proc/loadavg: 0.82 0.92 0.97 3/77 7954
/proc/meminfo: memFree=1510016/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=2380 CPUtime=0.29
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 321 0 0 0 29 0 0 0 19 0 1 0 46651581 2437120 303 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 595 303 93 219 0 372 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2380

[startup+0.701211 s]
/proc/loadavg: 0.82 0.92 0.97 3/77 7954
/proc/meminfo: memFree=1510016/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=3600 CPUtime=0.69
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 529 0 0 0 69 0 0 0 23 0 1 0 46651581 3686400 511 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 900 511 93 219 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.5013 s]
/proc/loadavg: 0.84 0.93 0.97 2/78 7955
/proc/meminfo: memFree=1507832/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=4056 CPUtime=1.49
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 876 0 0 0 148 1 0 0 25 0 1 0 46651581 4153344 809 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 1014 809 94 219 0 791 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4056

[startup+3.10147 s]
/proc/loadavg: 0.84 0.93 0.97 2/78 7955
/proc/meminfo: memFree=1506168/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=6760 CPUtime=3.09
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 1388 0 0 0 307 2 0 0 25 0 1 0 46651581 6922240 1224 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 1690 1224 94 219 0 1467 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6760

[startup+6.30183 s]
/proc/loadavg: 0.85 0.93 0.97 2/78 7955
/proc/meminfo: memFree=1503480/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=11384 CPUtime=6.29
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 1929 0 0 0 626 3 0 0 25 0 1 0 46651581 11657216 1765 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134549632 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 2846 1765 94 219 0 2623 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11384

[startup+12.7015 s]
/proc/loadavg: 0.86 0.93 0.97 2/78 7955
/proc/meminfo: memFree=1500536/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=13284 CPUtime=12.69
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 2785 0 0 0 1263 6 0 0 25 0 1 0 46651581 13602816 2428 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 3321 2428 94 219 0 3098 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13284

[startup+25.5019 s]
/proc/loadavg: 0.89 0.93 0.97 2/78 7955
/proc/meminfo: memFree=1497400/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=16468 CPUtime=25.48
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 3925 0 0 0 2540 8 0 0 25 0 1 0 46651581 16863232 3183 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547123 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 4117 3183 94 219 0 3894 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16468

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

[startup+25.902 s]
/proc/loadavg: 0.89 0.93 0.97 2/78 7955
/proc/meminfo: memFree=1497400/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=16468 CPUtime=25.88
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 3930 0 0 0 2580 8 0 0 25 0 1 0 46651581 16863232 3188 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547089 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 4117 3188 94 219 0 3894 0
Current children cumulated CPU time (s) 25.88
Current children cumulated vsize (KiB) 16468

[startup+26.102 s]
/proc/loadavg: 0.89 0.93 0.97 2/78 7955
/proc/meminfo: memFree=1497400/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=16468 CPUtime=26.08
/proc/7954/stat : 7954 (PBS4) R 7952 7954 7847 0 -1 4194304 3933 0 0 0 2600 8 0 0 25 0 1 0 46651581 16863232 3191 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/7954/statm: 4117 3191 94 219 0 3894 0
Current children cumulated CPU time (s) 26.08
Current children cumulated vsize (KiB) 16468

[startup+26.202 s]
/proc/loadavg: 0.89 0.93 0.97 2/78 7955
/proc/meminfo: memFree=1497400/2055920 swapFree=4157960/4192956
[pid=7954] ppid=7952 vsize=0 CPUtime=26.15
/proc/7954/stat : 7954 (PBS4) D 7952 7954 7847 0 -1 4194308 3948 0 0 0 2606 9 0 0 24 0 1 0 46651581 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 16384 18446744072100051646 0 0 17 1 0 0
/proc/7954/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 26.15
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 26.2163
CPU time (s): 26.155
CPU user time (s): 26.062
CPU system time (s): 0.092985
CPU usage (%): 99.7662
Max. virtual memory (cumulated for all children) (KiB): 16468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.062
system time used= 0.092985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3948
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= 521

runsolver used 0.023996 second user time and 0.080987 second system time

The end

Launcher Data (download as text)

Begin job on node47 on Wed Apr 18 17:41:02 UTC 2007

IDJOB= 358853
IDBENCH= 1244
IDSOLVER= 157
FILE ID= node47/358853-1176918062

PBS_JOBID= 4605652

Free space on /tmp= 66427 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111221624.opb
COMMAND LINE= /tmp/evaluation/358853-1176918062/PBS4 /tmp/evaluation/358853-1176918062/instance-358853-1176918062.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node47/convwatcher-358853-1176918062 -o ROOT/results/node47/conversion-358853-1176918062 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358853-1176918062/instance-358853-1176918062.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node47/watcher-358853-1176918062 -o ROOT/results/node47/solver-358853-1176918062 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358853-1176918062/PBS4 /tmp/evaluation/358853-1176918062/instance-358853-1176918062.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  1cbab9bec076c91ef9a04fed1aa2ec63

RANDOM SEED= 971749308

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node47.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		: 3000.221
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		: 3000.221
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:       1510424 kB
Buffers:         29656 kB
Cached:         448256 kB
SwapCached:       2916 kB
Active:          83888 kB
Inactive:       416712 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1510424 kB
SwapTotal:     4192956 kB
SwapFree:      4157960 kB
Dirty:            1444 kB
Writeback:           0 kB
Mapped:          29792 kB
Slab:            30384 kB
Committed_AS:  2572828 kB
PageTables:       1776 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= 66427 MiB

End job on node47 on Wed Apr 18 17:41:29 UTC 2007