Trace number 1877256

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 17.5463 17.5497

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111226241.opb
MD5SUMb7b312369c912d9a28d0c332b741ce41
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 benchmark1.21781
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 1163
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-1877256-1245115445.opb
0.00/0.00	c File size is 9897 bytes.
0.00/0.00	c Highest Coefficient sum: 1163
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.002 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 899
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.007 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      878    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
17.50/17.54	c      103    169      204     4788   23     1099    2820    105   4120 0.03
17.50/17.54	c      253    169      354    10187   28     1399    3103    255   4362 0.06
17.50/17.54	c      482    169      593    18191   30     1878    3414    494   4462 0.11
17.50/17.54	c      820    169      937    30146   32     2573    3756    838   4100 0.20
17.50/17.54	c     1329    169     1468    48336   32     3636    4132   1369   3733 0.36
17.50/17.54	c     2092    169     2264    74883   33     5232    4546   2165   3336 0.63
17.50/17.54	c     3239    169     3452   113021   32     7610    5001   3353   2766 1.17
17.50/17.54	c     4960    169     2614    82375   31     5921    5502   2515   2275 2.18
17.50/17.54	c     7548    169     5316   180476   33    11335    6053   5217   2184 3.46
17.50/17.54	c    11428    169     3127   127809   40     6956    6659   3028   1853 6.17
17.50/17.54	c    17251    169     5715   246790   43    12151    7325   5616   1649 10.46
17.50/17.54	c Backtracks by Clause: 25389
17.50/17.54	c Backtracks by PB constraint: 7
17.50/17.54	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 
17.50/17.54	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
17.50/17.54	c   11    25396   6737    40373     6633   293921   6534   1447 17.54
17.50/17.54	s SATISFIABLE
17.50/17.54	c Total time: 17.544 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-1877256-1245115445/watcher-1877256-1245115445 -o /tmp/evaluation-result-1877256-1245115445/solver-1877256-1245115445 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877256-1245115445.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: 0.96 0.97 1.06 3/64 1542
/proc/meminfo: memFree=1687792/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=10708 CPUtime=0
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179145433 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 2677 239 188 640 0 2033 0

[startup+0.031359 s]
/proc/loadavg: 0.96 0.97 1.06 3/64 1542
/proc/meminfo: memFree=1687792/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=10708 CPUtime=0.03
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 287 0 0 0 3 0 0 0 18 0 1 0 179145433 10964992 268 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 2677 268 196 640 0 2033 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 10708

[startup+0.101365 s]
/proc/loadavg: 0.96 0.97 1.06 3/64 1542
/proc/meminfo: memFree=1687792/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=10960 CPUtime=0.09
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 333 0 0 0 9 0 0 0 18 0 1 0 179145433 11223040 314 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 2740 314 196 640 0 2096 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10960

[startup+0.301382 s]
/proc/loadavg: 0.96 0.97 1.06 3/64 1542
/proc/meminfo: memFree=1687792/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=11332 CPUtime=0.29
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 431 0 0 0 29 0 0 0 19 0 1 0 179145433 11603968 412 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 2833 412 196 640 0 2189 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11332

[startup+0.70142 s]
/proc/loadavg: 0.96 0.97 1.06 3/64 1542
/proc/meminfo: memFree=1687792/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=11948 CPUtime=0.69
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 590 0 0 0 69 0 0 0 22 0 1 0 179145433 12234752 571 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 2987 571 196 640 0 2343 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11948

[startup+1.50149 s]
/proc/loadavg: 0.96 0.97 1.06 2/65 1543
/proc/meminfo: memFree=1685864/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=12816 CPUtime=1.49
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 802 0 0 0 149 0 0 0 25 0 1 0 179145433 13123584 783 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 3204 783 196 640 0 2560 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12816

[startup+3.10264 s]
/proc/loadavg: 0.96 0.97 1.06 2/65 1543
/proc/meminfo: memFree=1684712/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=13432 CPUtime=3.09
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 965 0 0 0 309 0 0 0 25 0 1 0 179145433 13754368 946 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 3358 946 196 640 0 2714 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13432

[startup+6.30194 s]
/proc/loadavg: 0.96 0.97 1.06 2/65 1543
/proc/meminfo: memFree=1683880/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=14644 CPUtime=6.3
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 1252 0 0 0 628 2 0 0 25 0 1 0 179145433 14995456 1233 1992294400 134512640 137136520 4294956256 18446744073709551615 136502143 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 3661 1233 196 640 0 3017 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 14644

[startup+12.7015 s]
/proc/loadavg: 0.97 0.97 1.06 2/65 1543
/proc/meminfo: memFree=1682664/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=15740 CPUtime=12.69
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 1527 0 0 0 1266 3 0 0 25 0 1 0 179145433 16117760 1508 1992294400 134512640 137136520 4294956256 18446744073709551615 134606731 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 3935 1508 196 640 0 3291 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 15740

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

[startup+15.9018 s]
/proc/loadavg: 0.97 0.97 1.06 2/65 1543
/proc/meminfo: memFree=1682344/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=15740 CPUtime=15.88
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 1541 0 0 0 1585 3 0 0 25 0 1 0 179145433 16117760 1522 1992294400 134512640 137136520 4294956256 18446744073709551615 134544411 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 3935 1522 196 640 0 3291 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 15740

[startup+16.7019 s]
/proc/loadavg: 0.97 0.97 1.06 2/65 1543
/proc/meminfo: memFree=1682280/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=15740 CPUtime=16.69
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 1541 0 0 0 1665 4 0 0 25 0 1 0 179145433 16117760 1522 1992294400 134512640 137136520 4294956256 18446744073709551615 134544116 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 3935 1522 196 640 0 3291 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 15740

[startup+17.1019 s]
/proc/loadavg: 0.97 0.97 1.06 2/65 1543
/proc/meminfo: memFree=1682280/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=15740 CPUtime=17.09
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 1541 0 0 0 1705 4 0 0 25 0 1 0 179145433 16117760 1522 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 3935 1522 196 640 0 3291 0
Current children cumulated CPU time (s) 17.09
Current children cumulated vsize (KiB) 15740

[startup+17.502 s]
/proc/loadavg: 0.97 0.97 1.06 2/65 1543
/proc/meminfo: memFree=1682280/2055920 swapFree=4192812/4192956
[pid=1542] ppid=1540 vsize=15740 CPUtime=17.5
/proc/1542/stat : 1542 (bsolo) R 1540 1542 1126 0 -1 4194304 1541 0 0 0 1746 4 0 0 25 0 1 0 179145433 16117760 1522 1992294400 134512640 137136520 4294956256 18446744073709551615 134543869 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1542/statm: 3935 1522 196 640 0 3291 0
Current children cumulated CPU time (s) 17.5
Current children cumulated vsize (KiB) 15740

Child status: 0
Real time (s): 17.5497
CPU time (s): 17.5463
CPU user time (s): 17.5033
CPU system time (s): 0.042993
CPU usage (%): 99.9809
Max. virtual memory (cumulated for all children) (KiB): 15740

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.5033
system time used= 0.042993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1543
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= 25

runsolver used 0.023996 second user time and 0.037994 second system time

The end

Launcher Data 

Begin job on node14 at 2009-06-16 03:24:05
IDJOB=1877256
IDBENCH=1185
IDSOLVER=699
FILE ID=node14/1877256-1245115445
PBS_JOBID= 9363651
Free space on /tmp= 66376 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111226241.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877256-1245115445/watcher-1877256-1245115445 -o /tmp/evaluation-result-1877256-1245115445/solver-1877256-1245115445 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877256-1245115445.opb

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

MD5SUM BENCH= b7b312369c912d9a28d0c332b741ce41
RANDOM SEED=2096460720

node14.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		: 3000.234
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		: 3000.234
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:       1688272 kB
Buffers:         23724 kB
Cached:         270172 kB
SwapCached:          0 kB
Active:          54340 kB
Inactive:       253456 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1688272 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4104 kB
Writeback:           0 kB
Mapped:          23720 kB
Slab:            45880 kB
Committed_AS:   160820 kB
PageTables:       1452 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= 66372 MiB
End job on node14 at 2009-06-16 03:24:23