Trace number 1877253

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 3.1SAT 18.6692 18.6767

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111224522.opb
MD5SUM269a6b743bb0d28274f35393a2f0dd96
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.356945
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
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 1287
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: Cardinality Constraint 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-1877253-1245115412.opb
0.00/0.00	c File size is 9905 bytes.
0.00/0.00	c Highest Coefficient sum: 1287
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 903
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      882    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
18.59/18.67	c      100    169      201     4210   20     1094    2820    102   4000 0.03
18.59/18.67	c      250    169      352     8645   24     1395    3103    253   4464 0.06
18.59/18.67	c      476    169      582    15311   26     1857    3414    483   4366 0.11
18.59/18.67	c      815    169      930    27090   29     2552    3756    831   4179 0.20
18.59/18.67	c     1326    169     1446    46268   31     3587    4132   1347   3724 0.36
18.59/18.67	c     2089    169     2224    71842   32     5144    4546   2125   3289 0.64
18.59/18.67	c     3236    169     3420   114538   33     7540    5001   3321   2804 1.15
18.59/18.67	c     4957    169     2609    84335   32     5925    5502   2510   2329 2.13
18.59/18.67	c     7542    169     5281   175564   33    11277    6053   5182   2142 3.52
18.59/18.67	c    11427    169     6142   230193   37    12991    6659   6043   1870 6.11
18.59/18.67	c    17250    169     5282   171451   32    11286    7325   5183   1725 10.00
18.59/18.67	c    25987    169     6778   248685   36    14275    8058   6679   1558 16.68
18.59/18.67	c Backtracks by Clause: 28453
18.59/18.67	c Backtracks by PB constraint: 6
18.59/18.67	v -x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 x23 -x24 -x25 -x26 -x27 -x28 x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 x112 -x113 -x114 -x115 -x116 -x117 x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 
18.59/18.67	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
18.59/18.67	c   12    28459   8122    47075     5193   194798   5094   1524 18.67
18.59/18.67	s SATISFIABLE
18.59/18.67	c Total time: 18.667 s

Verifier Data 

OK	0

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1877253-1245115412/watcher-1877253-1245115412 -o /tmp/evaluation-result-1877253-1245115412/solver-1877253-1245115412 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877253-1245115412.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: 0.99 0.97 1.00 3/64 497
/proc/meminfo: memFree=1243064/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=10708 CPUtime=0
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179142127 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 2677 239 188 640 0 2033 0

[startup+0.0195349 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 497
/proc/meminfo: memFree=1243064/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=10708 CPUtime=0.01
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 277 0 0 0 1 0 0 0 18 0 1 0 179142127 10964992 258 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 2677 258 196 640 0 2033 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 10708

[startup+0.10155 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 497
/proc/meminfo: memFree=1243064/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=10832 CPUtime=0.09
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 322 0 0 0 9 0 0 0 18 0 1 0 179142127 11091968 303 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 2708 303 196 640 0 2064 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10832

[startup+0.301588 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 497
/proc/meminfo: memFree=1243064/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=11332 CPUtime=0.29
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 426 0 0 0 29 0 0 0 19 0 1 0 179142127 11603968 407 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 2833 407 196 640 0 2189 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11332

[startup+0.701665 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 497
/proc/meminfo: memFree=1243064/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=11948 CPUtime=0.69
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 576 0 0 0 69 0 0 0 22 0 1 0 179142127 12234752 557 1992294400 134512640 137136520 4294956256 18446744073709551615 134544256 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 2987 557 196 640 0 2343 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11948

[startup+1.50182 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 498
/proc/meminfo: memFree=1241136/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=12812 CPUtime=1.49
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 806 0 0 0 148 1 0 0 25 0 1 0 179142127 13119488 787 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 3203 787 196 640 0 2559 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12812

[startup+3.10113 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 498
/proc/meminfo: memFree=1239856/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=13424 CPUtime=3.09
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 968 0 0 0 308 1 0 0 25 0 1 0 179142127 13746176 949 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 3356 949 196 640 0 2712 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13424

[startup+6.30174 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 498
/proc/meminfo: memFree=1239024/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=14400 CPUtime=6.29
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 1201 0 0 0 627 2 0 0 25 0 1 0 179142127 14745600 1182 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 3600 1182 196 640 0 2956 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14400

[startup+12.702 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 498
/proc/meminfo: memFree=1238256/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=14884 CPUtime=12.69
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 1314 0 0 0 1265 4 0 0 25 0 1 0 179142127 15241216 1295 1992294400 134512640 137136520 4294956256 18446744073709551615 135982528 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 3721 1295 197 640 0 3077 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 14884

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

[startup+15.9016 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 498
/proc/meminfo: memFree=1238000/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=15124 CPUtime=15.88
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 1383 0 0 0 1584 4 0 0 25 0 1 0 179142127 15486976 1364 1992294400 134512640 137136520 4294956256 18446744073709551615 136502201 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 3781 1364 197 640 0 3137 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 15124

[startup+17.5019 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 498
/proc/meminfo: memFree=1238000/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=15124 CPUtime=17.48
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 1383 0 0 0 1744 4 0 0 25 0 1 0 179142127 15486976 1364 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 3781 1364 197 640 0 3137 0
Current children cumulated CPU time (s) 17.48
Current children cumulated vsize (KiB) 15124

[startup+18.301 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 498
/proc/meminfo: memFree=1238000/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=15488 CPUtime=18.29
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 1479 0 0 0 1824 5 0 0 25 0 1 0 179142127 15859712 1460 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 3872 1460 197 640 0 3228 0
Current children cumulated CPU time (s) 18.29
Current children cumulated vsize (KiB) 15488

[startup+18.5011 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 498
/proc/meminfo: memFree=1238000/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=15488 CPUtime=18.49
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 1479 0 0 0 1844 5 0 0 25 0 1 0 179142127 15859712 1460 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 3872 1460 197 640 0 3228 0
Current children cumulated CPU time (s) 18.49
Current children cumulated vsize (KiB) 15488

[startup+18.6011 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 498
/proc/meminfo: memFree=1237616/2055920 swapFree=4183064/4192956
[pid=497] ppid=495 vsize=15488 CPUtime=18.59
/proc/497/stat : 497 (bsolo) R 495 497 32550 0 -1 4194304 1479 0 0 0 1854 5 0 0 25 0 1 0 179142127 15859712 1460 1992294400 134512640 137136520 4294956256 18446744073709551615 136518953 0 0 4096 16384 0 0 0 17 1 0 0
/proc/497/statm: 3872 1460 197 640 0 3228 0
Current children cumulated CPU time (s) 18.59
Current children cumulated vsize (KiB) 15488

Child status: 0
Real time (s): 18.6767
CPU time (s): 18.6692
CPU user time (s): 18.6172
CPU system time (s): 0.051992
CPU usage (%): 99.9595
Max. virtual memory (cumulated for all children) (KiB): 15488

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.6172
system time used= 0.051992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1481
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= 28

runsolver used 0.010998 second user time and 0.051992 second system time

The end

Launcher Data 

Begin job on node5 at 2009-06-16 03:23:32
IDJOB=1877253
IDBENCH=1182
IDSOLVER=699
FILE ID=node5/1877253-1245115412
PBS_JOBID= 9363644
Free space on /tmp= 66256 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111224522.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877253-1245115412/watcher-1877253-1245115412 -o /tmp/evaluation-result-1877253-1245115412/solver-1877253-1245115412 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877253-1245115412.opb

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

MD5SUM BENCH= 269a6b743bb0d28274f35393a2f0dd96
RANDOM SEED=21111192

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:       1243544 kB
Buffers:         79740 kB
Cached:         633856 kB
SwapCached:       4008 kB
Active:          53320 kB
Inactive:       668428 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1243544 kB
SwapTotal:     4192956 kB
SwapFree:      4183064 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          14544 kB
Slab:            76728 kB
Committed_AS:   139600 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 03:23:51