Trace number 1880197

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 pbSAT 18.1392 18.1445

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111217374.opb
MD5SUMf26b4b4de355c3bda963e6161af6778b
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 benchmark0.12798
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 1096
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: Generic Pseudo-Boolean 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-1880197-1245115942.opb
0.00/0.00	c File size is 9896 bytes.
0.00/0.00	c Highest Coefficient sum: 1096
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: 897
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.006 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.
18.09/18.14	c      102    169      303    21726   71    10459    2820    204   1758 0.06
18.09/18.14	c      255    169      605    52810   87    23834    3103    506   1378 0.18
18.09/18.14	c      481    169     1038    96178   92    42206    3414    939    963 0.50
18.09/18.14	c      819    169     1693   163665   96    70054    3756   1594    692 1.18
18.09/18.14	c     1327    169     2639   258975   98   102478    4132   2540    479 2.77
18.09/18.14	c     2091    169     4104   408453   99   149092    4546   4005    308 6.77
18.09/18.14	c     3237    169     3886   379545   97   143331    5001   3787    179 18.00
18.09/18.14	c Backtracks by Clause: 2708
18.09/18.14	c Backtracks by PB constraint: 244
18.09/18.14	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 
18.09/18.14	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
18.09/18.14	c    7     3253    488     4447     3918   383089   3819    179 18.14
18.09/18.14	s SATISFIABLE
18.09/18.14	c Total time: 18.136 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-1880197-1245115942/watcher-1880197-1245115942 -o /tmp/evaluation-result-1880197-1245115942/solver-1880197-1245115942 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880197-1245115942.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: 0.95 0.95 0.99 3/64 1900
/proc/meminfo: memFree=804088/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=10708 CPUtime=0
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179193493 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 2677 239 188 640 0 2033 0

[startup+0.0698311 s]
/proc/loadavg: 0.95 0.95 0.99 3/64 1900
/proc/meminfo: memFree=804088/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=11228 CPUtime=0.06
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 415 0 0 0 6 0 0 0 18 0 1 0 179193493 11497472 396 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 2807 396 196 640 0 2163 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 11228

[startup+0.101833 s]
/proc/loadavg: 0.95 0.95 0.99 3/64 1900
/proc/meminfo: memFree=804088/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=11492 CPUtime=0.1
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 468 0 0 0 10 0 0 0 18 0 1 0 179193493 11767808 449 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 2873 449 196 640 0 2229 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11492

[startup+0.301855 s]
/proc/loadavg: 0.95 0.95 0.99 3/64 1900
/proc/meminfo: memFree=804088/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=12276 CPUtime=0.29
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 674 0 0 0 29 0 0 0 19 0 1 0 179193493 12570624 655 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 3069 655 197 640 0 2425 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12276

[startup+0.701899 s]
/proc/loadavg: 0.95 0.95 0.99 3/64 1900
/proc/meminfo: memFree=804088/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=13440 CPUtime=0.69
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 958 0 0 0 69 0 0 0 22 0 1 0 179193493 13762560 939 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 3360 939 197 640 0 2716 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13440

[startup+1.50199 s]
/proc/loadavg: 0.95 0.95 0.99 2/65 1901
/proc/meminfo: memFree=800304/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=15004 CPUtime=1.49
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 1348 0 0 0 149 0 0 0 25 0 1 0 179193493 15364096 1329 1992294400 134512640 137136520 4294956256 18446744073709551615 134544129 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 3751 1329 197 640 0 3107 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15004

[startup+3.10117 s]
/proc/loadavg: 0.95 0.95 0.99 2/65 1901
/proc/meminfo: memFree=798448/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=16948 CPUtime=3.09
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 1830 0 0 0 309 0 0 0 25 0 1 0 179193493 17354752 1811 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 4237 1811 197 640 0 3593 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16948

[startup+6.30152 s]
/proc/loadavg: 0.95 0.95 0.99 2/65 1901
/proc/meminfo: memFree=795504/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=19288 CPUtime=6.29
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 2438 0 0 0 628 1 0 0 25 0 1 0 179193493 19750912 2419 1992294400 134512640 137136520 4294956256 18446744073709551615 134544186 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 4822 2419 197 640 0 4178 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 19288

[startup+12.7012 s]
/proc/loadavg: 1.04 0.97 0.99 2/65 1901
/proc/meminfo: memFree=793144/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=21100 CPUtime=12.68
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 2866 0 0 0 1267 1 0 0 25 0 1 0 179193493 21606400 2847 1992294400 134512640 137136520 4294956256 18446744073709551615 134540859 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 5275 2847 197 640 0 4631 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 21100

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

[startup+15.9016 s]
/proc/loadavg: 1.04 0.97 0.99 2/65 1901
/proc/meminfo: memFree=793144/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=21100 CPUtime=15.88
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 2866 0 0 0 1587 1 0 0 25 0 1 0 179193493 21606400 2847 1992294400 134512640 137136520 4294956256 18446744073709551615 134543942 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 5275 2847 197 640 0 4631 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 21100

[startup+17.5018 s]
/proc/loadavg: 1.04 0.97 0.99 2/65 1901
/proc/meminfo: memFree=793144/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=21100 CPUtime=17.49
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 2866 0 0 0 1747 2 0 0 25 0 1 0 179193493 21606400 2847 1992294400 134512640 137136520 4294956256 18446744073709551615 134543834 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 5275 2847 197 640 0 4631 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 21100

[startup+17.9018 s]
/proc/loadavg: 1.04 0.97 0.99 2/65 1901
/proc/meminfo: memFree=793144/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=21100 CPUtime=17.89
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 2866 0 0 0 1787 2 0 0 25 0 1 0 179193493 21606400 2847 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 5275 2847 197 640 0 4631 0
Current children cumulated CPU time (s) 17.89
Current children cumulated vsize (KiB) 21100

[startup+18.1018 s]
/proc/loadavg: 1.04 0.97 0.99 2/65 1901
/proc/meminfo: memFree=793144/2055920 swapFree=4192952/4192956
[pid=1900] ppid=1898 vsize=21100 CPUtime=18.09
/proc/1900/stat : 1900 (bsolo) R 1898 1900 920 0 -1 4194304 2866 0 0 0 1807 2 0 0 25 0 1 0 179193493 21606400 2847 1992294400 134512640 137136520 4294956256 18446744073709551615 134544440 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1900/statm: 5275 2847 197 640 0 4631 0
Current children cumulated CPU time (s) 18.09
Current children cumulated vsize (KiB) 21100

Child status: 0
Real time (s): 18.1445
CPU time (s): 18.1392
CPU user time (s): 18.1162
CPU system time (s): 0.022996
CPU usage (%): 99.9709
Max. virtual memory (cumulated for all children) (KiB): 21100

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.1162
system time used= 0.022996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2868
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= 21

runsolver used 0.015997 second user time and 0.045993 second system time

The end

Launcher Data 

Begin job on node35 at 2009-06-16 03:32:22
IDJOB=1880197
IDBENCH=1266
IDSOLVER=701
FILE ID=node35/1880197-1245115942
PBS_JOBID= 9363648
Free space on /tmp= 66136 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111217374.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880197-1245115942/watcher-1880197-1245115942 -o /tmp/evaluation-result-1880197-1245115942/solver-1880197-1245115942 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880197-1245115942.opb

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

MD5SUM BENCH= f26b4b4de355c3bda963e6161af6778b
RANDOM SEED=1165208330

node35.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		: 3000.232
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		: 3000.232
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:        804504 kB
Buffers:         84044 kB
Cached:        1066308 kB
SwapCached:          4 kB
Active:         171568 kB
Inactive:       992744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        804504 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            4116 kB
Writeback:           0 kB
Mapped:          23728 kB
Slab:            73156 kB
Committed_AS:   157504 kB
PageTables:       1400 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= 66132 MiB
End job on node35 at 2009-06-16 03:32:40