Trace number 1880186

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 18.4942 18.5017

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110975832.opb
MD5SUM1db724dea2682aeae2b8138d40ef319b
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 benchmark0.429934
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 1149
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-1880186-1245115901.opb
0.00/0.00	c File size is 9897 bytes.
0.00/0.00	c Highest Coefficient sum: 1149
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: 899
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      877    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
18.39/18.49	c      100    169      299    20498   68    12977    2820    200   1724 0.06
18.39/18.49	c      251    169      600    49052   81    26964    3103    501   1307 0.19
18.39/18.49	c      477    169     1042    91835   88    47196    3414    943    867 0.55
18.39/18.49	c      819    169     1708   159927   93    69243    3756   1609    601 1.36
18.39/18.49	c     1328    169     2661   252399   94   100838    4132   2562    398 3.33
18.39/18.49	c     2093    169     4039   385326   95   146008    4546   3940    250 8.36
18.39/18.49	c Backtracks by Clause: 2431
18.39/18.49	c Backtracks by PB constraint: 257
18.39/18.49	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 
18.39/18.49	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
18.39/18.49	c    6     3039    411     4027     3412   332636   3313    164 18.49
18.39/18.49	s SATISFIABLE
18.39/18.49	c Total time: 18.491 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-1880186-1245115901/watcher-1880186-1245115901 -o /tmp/evaluation-result-1880186-1245115901/solver-1880186-1245115901 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880186-1245115901.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 0.98 1.05 3/64 2490
/proc/meminfo: memFree=1147928/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=10708 CPUtime=0
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 265 0 0 0 0 0 0 0 18 0 1 0 179190927 10964992 246 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 2677 246 190 640 0 2033 0

[startup+0.0290271 s]
/proc/loadavg: 0.99 0.98 1.05 3/64 2490
/proc/meminfo: memFree=1147928/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=10968 CPUtime=0.02
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 333 0 0 0 2 0 0 0 18 0 1 0 179190927 11231232 314 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 2742 314 196 640 0 2098 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 10968

[startup+0.102042 s]
/proc/loadavg: 0.99 0.98 1.05 3/64 2490
/proc/meminfo: memFree=1147928/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=11484 CPUtime=0.09
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 472 0 0 0 9 0 0 0 18 0 1 0 179190927 11759616 453 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 2871 453 197 640 0 2227 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11484

[startup+0.302081 s]
/proc/loadavg: 0.99 0.98 1.05 3/64 2490
/proc/meminfo: memFree=1147928/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=12260 CPUtime=0.29
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 683 0 0 0 29 0 0 0 19 0 1 0 179190927 12554240 664 1992294400 134512640 137136520 4294956256 18446744073709551615 134533436 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 3065 664 197 640 0 2421 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12260

[startup+0.701159 s]
/proc/loadavg: 0.99 0.98 1.05 3/64 2490
/proc/meminfo: memFree=1147928/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=13304 CPUtime=0.69
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 930 0 0 0 69 0 0 0 23 0 1 0 179190927 13623296 911 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 3326 911 197 640 0 2682 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13304

[startup+1.50132 s]
/proc/loadavg: 0.99 0.98 1.05 2/65 2491
/proc/meminfo: memFree=1144656/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=14612 CPUtime=1.49
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 1250 0 0 0 149 0 0 0 25 0 1 0 179190927 14962688 1231 1992294400 134512640 137136520 4294956256 18446744073709551615 134544116 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 3653 1231 197 640 0 3009 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14612

[startup+3.10163 s]
/proc/loadavg: 0.99 0.98 1.05 2/65 2491
/proc/meminfo: memFree=1142992/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=16304 CPUtime=3.09
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 1667 0 0 0 308 1 0 0 25 0 1 0 179190927 16695296 1648 1992294400 134512640 137136520 4294956256 18446744073709551615 134606752 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 4076 1648 197 640 0 3432 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16304

[startup+6.30126 s]
/proc/loadavg: 0.99 0.98 1.05 2/65 2491
/proc/meminfo: memFree=1140432/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=18276 CPUtime=6.29
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 2165 0 0 0 628 1 0 0 25 0 1 0 179190927 18714624 2146 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 4569 2146 197 640 0 3925 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18276

[startup+12.7015 s]
/proc/loadavg: 0.99 0.98 1.05 2/65 2491
/proc/meminfo: memFree=1137424/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=20756 CPUtime=12.69
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 2793 0 0 0 1267 2 0 0 25 0 1 0 179190927 21254144 2774 1992294400 134512640 137136520 4294956256 18446744073709551615 134540859 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 5189 2774 197 640 0 4545 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 20756

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

[startup+15.9011 s]
/proc/loadavg: 0.99 0.98 1.05 2/65 2491
/proc/meminfo: memFree=1137360/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=20756 CPUtime=15.89
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 2793 0 0 0 1587 2 0 0 25 0 1 0 179190927 21254144 2774 1992294400 134512640 137136520 4294956256 18446744073709551615 134573541 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 5189 2774 197 640 0 4545 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 20756

[startup+17.5015 s]
/proc/loadavg: 0.99 0.98 1.05 2/65 2491
/proc/meminfo: memFree=1137360/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=20756 CPUtime=17.49
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 2793 0 0 0 1747 2 0 0 25 0 1 0 179190927 21254144 2774 1992294400 134512640 137136520 4294956256 18446744073709551615 134544116 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 5189 2774 197 640 0 4545 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 20756

[startup+18.3016 s]
/proc/loadavg: 0.99 0.98 1.05 2/65 2491
/proc/meminfo: memFree=1137360/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=20756 CPUtime=18.29
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194304 2793 0 0 0 1827 2 0 0 25 0 1 0 179190927 21254144 2774 1992294400 134512640 137136520 4294956256 18446744073709551615 134544425 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 5189 2774 197 640 0 4545 0
Current children cumulated CPU time (s) 18.29
Current children cumulated vsize (KiB) 20756

[startup+18.5017 s]
/proc/loadavg: 0.99 0.98 1.05 2/65 2491
/proc/meminfo: memFree=1137360/2055924 swapFree=4191900/4192956
[pid=2490] ppid=2488 vsize=0 CPUtime=18.48
/proc/2490/stat : 2490 (bsolo) R 2488 2490 2114 0 -1 4194308 2795 0 0 0 1846 2 0 0 25 0 1 0 179190927 0 0 1992294400 0 0 0 0 0 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2490/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 18.48
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 18.5017
CPU time (s): 18.4942
CPU user time (s): 18.4692
CPU system time (s): 0.024996
CPU usage (%): 99.9591
Max. virtual memory (cumulated for all children) (KiB): 20756

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.4692
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2795
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= 26

runsolver used 0.023996 second user time and 0.041993 second system time

The end

Launcher Data 

Begin job on node6 at 2009-06-16 03:31:41
IDJOB=1880186
IDBENCH=1255
IDSOLVER=701
FILE ID=node6/1880186-1245115901
PBS_JOBID= 9363665
Free space on /tmp= 66240 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110975832.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880186-1245115901/watcher-1880186-1245115901 -o /tmp/evaluation-result-1880186-1245115901/solver-1880186-1245115901 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880186-1245115901.opb

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

MD5SUM BENCH= 1db724dea2682aeae2b8138d40ef319b
RANDOM SEED=2021667485

node6.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		: 3000.265
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		: 3000.265
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:      2055924 kB
MemFree:       1148536 kB
Buffers:         52740 kB
Cached:         773336 kB
SwapCached:        260 kB
Active:          65064 kB
Inactive:       774236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1148536 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          21756 kB
Slab:            54120 kB
Committed_AS:   147380 kB
PageTables:       1456 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= 66236 MiB
End job on node6 at 2009-06-16 03:32:00