Trace number 1878710

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
bsolo 3.1 clUNSAT 31.5582 31.5702

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110976935.opb
MD5SUM09a2a97c88821c18a87bc8c5a7b2e947
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.040993
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 1229
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 

0.00/0.00	c bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Learning Strategy: Clause Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file HOME/instance-1878710-1245115661.opb
0.00/0.00	c File size is 9903 bytes.
0.00/0.00	c Highest Coefficient sum: 1229
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 901
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.005 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    169       99     1179   11      879    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
31.47/31.56	c      101    169      200     4294   21     1093    2820    101   7769 0.01
31.47/31.56	c      251    169      350    11033   31     1392    3103    251   8655 0.03
31.47/31.56	c      476    169      575    20324   35     1842    3414    476   8206 0.06
31.47/31.56	c      814    169      913    32243   35     2518    3756    814   7752 0.10
31.47/31.56	c     1323    169     1422    49045   34     3535    4132   1323   6854 0.19
31.47/31.56	c     2086    169     2185    76299   34     5061    4546   2086   5794 0.36
31.47/31.56	c     3232    169     3331   108891   32     7355    5001   3232   4860 0.67
31.47/31.56	c     4953    169     5052   155541   30    10796    5502   4953   3666 1.35
31.47/31.56	c     7537    169     4788   149587   31    10269    6053   4689   3152 2.39
31.47/31.56	c    11417    169     5549   200175   36    11790    6659   5450   2655 4.30
31.47/31.56	c    17239    169     4533   179152   39     9757    7325   4434   2346 7.35
31.47/31.56	c    25976    168     5731   200136   34    12153    8058   5632   2105 12.34
31.47/31.56	c    39088    168     6459   252635   39    13610    8864   6360   1923 20.32
31.47/31.56	c Backtracks by Clause: 0
31.47/31.56	c Backtracks by PB constraint: 0
31.47/31.56	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
31.47/31.56	c   13    53324  14327    85264     7069   291944   6970   1689 31.56
31.47/31.56	s UNSATISFIABLE
31.47/31.56	c Total time: 31.556 s

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1878710-1245115661/watcher-1878710-1245115661 -o /tmp/evaluation-result-1878710-1245115661/solver-1878710-1245115661 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1878710-1245115661.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.98 0.96 0.99 3/64 722
/proc/meminfo: memFree=1242616/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=10708 CPUtime=0
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179166978 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 2677 239 188 640 0 2033 0

[startup+0.0251089 s]
/proc/loadavg: 0.98 0.96 0.99 3/64 722
/proc/meminfo: memFree=1242616/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=10836 CPUtime=0.02
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 294 0 0 0 2 0 0 0 18 0 1 0 179166978 11096064 275 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 2709 275 195 640 0 2065 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 10836

[startup+0.101123 s]
/proc/loadavg: 0.98 0.96 0.99 3/64 722
/proc/meminfo: memFree=1242616/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=11088 CPUtime=0.09
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 383 0 0 0 9 0 0 0 18 0 1 0 179166978 11354112 364 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 2772 364 195 640 0 2128 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11088

[startup+0.30116 s]
/proc/loadavg: 0.98 0.96 0.99 3/64 722
/proc/meminfo: memFree=1242616/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=11724 CPUtime=0.29
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 530 0 0 0 29 0 0 0 19 0 1 0 179166978 12005376 511 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 2931 511 195 640 0 2287 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11724

[startup+0.701238 s]
/proc/loadavg: 0.98 0.96 0.99 3/64 722
/proc/meminfo: memFree=1242616/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=12496 CPUtime=0.69
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 712 0 0 0 69 0 0 0 23 0 1 0 179166978 12795904 693 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 3124 693 195 640 0 2480 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12496

[startup+1.50139 s]
/proc/loadavg: 0.98 0.96 0.99 2/65 723
/proc/meminfo: memFree=1240176/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=13396 CPUtime=1.49
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 937 0 0 0 148 1 0 0 25 0 1 0 179166978 13717504 918 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 3349 918 195 640 0 2705 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13396

[startup+3.1017 s]
/proc/loadavg: 0.98 0.96 0.99 2/65 723
/proc/meminfo: memFree=1239280/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=13780 CPUtime=3.09
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 1055 0 0 0 308 1 0 0 25 0 1 0 179166978 14110720 1036 1992294400 134512640 137136520 4294956256 18446744073709551615 134543927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 3445 1037 195 640 0 2801 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13780

[startup+6.30131 s]
/proc/loadavg: 0.98 0.96 0.99 2/65 723
/proc/meminfo: memFree=1238064/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=14648 CPUtime=6.28
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 1259 0 0 0 626 2 0 0 25 0 1 0 179166978 14999552 1240 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 3662 1240 195 640 0 3018 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 14648

[startup+12.7015 s]
/proc/loadavg: 0.98 0.96 0.99 2/65 723
/proc/meminfo: memFree=1237616/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=15032 CPUtime=12.69
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 1361 0 0 0 1265 4 0 0 25 0 1 0 179166978 15392768 1342 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 3758 1342 195 640 0 3114 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 15032

[startup+25.502 s]
/proc/loadavg: 0.98 0.96 0.99 2/65 723
/proc/meminfo: memFree=1236464/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=16176 CPUtime=25.48
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 1650 0 0 0 2541 7 0 0 25 0 1 0 179166978 16564224 1631 1992294400 134512640 137136520 4294956256 18446744073709551615 136293435 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 4044 1631 195 640 0 3400 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16176

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

[startup+28.7026 s]
/proc/loadavg: 0.98 0.96 0.99 2/65 723
/proc/meminfo: memFree=1236464/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=16176 CPUtime=28.68
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 1650 0 0 0 2861 7 0 0 25 0 1 0 179166978 16564224 1631 1992294400 134512640 137136520 4294956256 18446744073709551615 134543831 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 4044 1631 195 640 0 3400 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 16176

[startup+30.3019 s]
/proc/loadavg: 0.98 0.96 0.99 2/65 723
/proc/meminfo: memFree=1236272/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=16428 CPUtime=30.28
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 1721 0 0 0 3021 7 0 0 25 0 1 0 179166978 16822272 1702 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 4107 1702 195 640 0 3463 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 16428

[startup+31.1011 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 723
/proc/meminfo: memFree=1236208/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=16428 CPUtime=31.08
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 1721 0 0 0 3101 7 0 0 25 0 1 0 179166978 16822272 1702 1992294400 134512640 137136520 4294956256 18446744073709551615 135982505 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 4107 1702 195 640 0 3463 0
Current children cumulated CPU time (s) 31.08
Current children cumulated vsize (KiB) 16428

[startup+31.5011 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 723
/proc/meminfo: memFree=1236208/2055920 swapFree=4183064/4192956
[pid=722] ppid=720 vsize=16428 CPUtime=31.47
/proc/722/stat : 722 (bsolo) R 720 722 32550 0 -1 4194304 1721 0 0 0 3140 7 0 0 25 0 1 0 179166978 16822272 1702 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/722/statm: 4107 1702 195 640 0 3463 0
Current children cumulated CPU time (s) 31.47
Current children cumulated vsize (KiB) 16428

Child status: 0
Real time (s): 31.5702
CPU time (s): 31.5582
CPU user time (s): 31.4772
CPU system time (s): 0.080987
CPU usage (%): 99.9619
Max. virtual memory (cumulated for all children) (KiB): 16428

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.4772
system time used= 0.080987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1723
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= 2
involuntary context switches= 41

runsolver used 0.019996 second user time and 0.080987 second system time

The end

Launcher Data 

Begin job on node5 at 2009-06-16 03:27:41
IDJOB=1878710
IDBENCH=1209
IDSOLVER=700
FILE ID=node5/1878710-1245115661
PBS_JOBID= 9363644
Free space on /tmp= 66256 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110976935.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1878710-1245115661/watcher-1878710-1245115661 -o /tmp/evaluation-result-1878710-1245115661/solver-1878710-1245115661 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1878710-1245115661.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 09a2a97c88821c18a87bc8c5a7b2e947
RANDOM SEED=1108668210

node5.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.259
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		: 3000.259
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:       1243032 kB
Buffers:         79916 kB
Cached:         634020 kB
SwapCached:       4008 kB
Active:          53808 kB
Inactive:       668280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1243032 kB
SwapTotal:     4192956 kB
SwapFree:      4183064 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          14548 kB
Slab:            76804 kB
Committed_AS:   140748 kB
PageTables:       1392 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= 66252 MiB
End job on node5 at 2009-06-16 03:28:13