Trace number 1877262

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 30.7933 30.8015

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111216864.opb
MD5SUM01a11c78606c6281a399e7d01c40beb6
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 benchmark1.3418
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 1228
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-1877262-1245115520.opb
0.00/0.00	c File size is 9905 bytes.
0.00/0.00	c Highest Coefficient sum: 1228
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: 900
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      880    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
30.68/30.80	c      101    169      201     3895   19     1094    2820    102   4040 0.03
30.68/30.80	c      252    169      355     8743   24     1403    3103    256   4666 0.05
30.68/30.80	c      478    169      588    16908   28     1866    3414    489   4345 0.11
30.68/30.80	c      816    169      932    27108   29     2560    3756    833   4080 0.20
30.68/30.80	c     1324    169     1462    43244   29     3624    4132   1363   3740 0.35
30.68/30.80	c     2087    169     2242    63757   28     5185    4546   2143   3360 0.62
30.68/30.80	c     3235    169     3421   100586   29     7544    5001   3322   2880 1.12
30.68/30.80	c     4958    169     2619    81735   31     5933    5502   2520   2403 2.06
30.68/30.80	c     7543    169     5277   170958   32    11253    6053   5178   2244 3.36
30.68/30.80	c    11422    169     6146   198064   32    12991    6659   6047   2016 5.66
30.68/30.80	c    17246    169     5278   185708   35    11262    7325   5179   1836 9.39
30.68/30.80	c    25983    169     6757   227301   33    14230    8058   6658   1690 15.37
30.68/30.80	c    39093    169     7951   307613   38    16650    8864   7852   1523 25.67
30.68/30.80	c Backtracks by Clause: 45493
30.68/30.80	c Backtracks by PB constraint: 22
30.68/30.80	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 
30.68/30.80	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
30.68/30.80	c   13    45515  12969    74293     5546   222853   5447   1478 30.79
30.68/30.80	s SATISFIABLE
30.68/30.80	c Total time: 30.791 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-1877262-1245115520/watcher-1877262-1245115520 -o /tmp/evaluation-result-1877262-1245115520/solver-1877262-1245115520 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877262-1245115520.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: 0.97 0.99 1.01 3/65 2640
/proc/meminfo: memFree=1085216/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=10708 CPUtime=0
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179151398 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 2677 239 188 640 0 2033 0

[startup+0.0294781 s]
/proc/loadavg: 0.97 0.99 1.01 3/65 2640
/proc/meminfo: memFree=1085216/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=10708 CPUtime=0.02
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 281 0 0 0 2 0 0 0 18 0 1 0 179151398 10964992 262 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 2677 262 196 640 0 2033 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 10708

[startup+0.101486 s]
/proc/loadavg: 0.97 0.99 1.01 3/65 2640
/proc/meminfo: memFree=1085216/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=10948 CPUtime=0.09
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 327 0 0 0 9 0 0 0 18 0 1 0 179151398 11210752 308 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 2737 308 196 640 0 2093 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10948

[startup+0.301508 s]
/proc/loadavg: 0.97 0.99 1.01 3/65 2640
/proc/meminfo: memFree=1085216/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=11320 CPUtime=0.29
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 419 0 0 0 29 0 0 0 19 0 1 0 179151398 11591680 400 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 2830 400 196 640 0 2186 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11320

[startup+0.701553 s]
/proc/loadavg: 0.97 0.99 1.01 3/65 2640
/proc/meminfo: memFree=1085216/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=11808 CPUtime=0.69
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 558 0 0 0 69 0 0 0 22 0 1 0 179151398 12091392 539 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 2952 539 196 640 0 2308 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11808

[startup+1.50164 s]
/proc/loadavg: 0.97 0.99 1.01 2/66 2641
/proc/meminfo: memFree=1083416/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=12672 CPUtime=1.49
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 777 0 0 0 148 1 0 0 25 0 1 0 179151398 12976128 758 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 3168 758 196 640 0 2524 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12672

[startup+3.10184 s]
/proc/loadavg: 0.97 0.99 1.01 2/66 2641
/proc/meminfo: memFree=1082136/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=13292 CPUtime=3.09
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 925 0 0 0 308 1 0 0 25 0 1 0 179151398 13611008 906 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 3323 906 196 640 0 2679 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13292

[startup+6.30119 s]
/proc/loadavg: 0.98 0.99 1.01 2/66 2641
/proc/meminfo: memFree=1081440/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=14272 CPUtime=6.29
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 1184 0 0 0 627 2 0 0 25 0 1 0 179151398 14614528 1165 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 3568 1165 196 640 0 2924 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14272

[startup+12.7019 s]
/proc/loadavg: 0.98 0.99 1.01 2/66 2641
/proc/meminfo: memFree=1080488/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=14888 CPUtime=12.68
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 1333 0 0 0 1265 3 0 0 25 0 1 0 179151398 15245312 1314 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 3722 1314 197 640 0 3078 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 14888

[startup+25.5014 s]
/proc/loadavg: 0.98 0.99 1.00 2/66 2641
/proc/meminfo: memFree=1079976/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=15484 CPUtime=25.49
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 1465 0 0 0 2543 6 0 0 25 0 1 0 179151398 15855616 1446 1992294400 134512640 137136520 4294956256 18446744073709551615 134543881 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 3871 1446 197 640 0 3227 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 15484

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

[startup+28.7027 s]
/proc/loadavg: 0.98 0.99 1.00 2/66 2641
/proc/meminfo: memFree=1079208/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=16212 CPUtime=28.68
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 1648 0 0 0 2862 6 0 0 25 0 1 0 179151398 16601088 1629 1992294400 134512640 137136520 4294956256 18446744073709551615 134543948 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 4053 1629 197 640 0 3409 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 16212

[startup+29.5018 s]
/proc/loadavg: 0.98 0.99 1.00 2/66 2641
/proc/meminfo: memFree=1079208/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=16212 CPUtime=29.48
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 1648 0 0 0 2942 6 0 0 25 0 1 0 179151398 16601088 1629 1992294400 134512640 137136520 4294956256 18446744073709551615 134543878 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 4053 1629 197 640 0 3409 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 16212

[startup+30.3019 s]
/proc/loadavg: 0.98 0.99 1.00 2/66 2641
/proc/meminfo: memFree=1079208/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=16212 CPUtime=30.28
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 1648 0 0 0 3022 6 0 0 25 0 1 0 179151398 16601088 1629 1992294400 134512640 137136520 4294956256 18446744073709551615 134543831 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 4053 1629 197 640 0 3409 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 16212

[startup+30.702 s]
/proc/loadavg: 0.98 0.99 1.00 2/66 2641
/proc/meminfo: memFree=1079208/2055920 swapFree=4191900/4192956
[pid=2640] ppid=2638 vsize=16212 CPUtime=30.68
/proc/2640/stat : 2640 (bsolo) R 2638 2640 1864 0 -1 4194304 1648 0 0 0 3062 6 0 0 25 0 1 0 179151398 16601088 1629 1992294400 134512640 137136520 4294956256 18446744073709551615 134543927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2640/statm: 4053 1629 197 640 0 3409 0
Current children cumulated CPU time (s) 30.68
Current children cumulated vsize (KiB) 16212

Child status: 0
Real time (s): 30.8015
CPU time (s): 30.7933
CPU user time (s): 30.7213
CPU system time (s): 0.071989
CPU usage (%): 99.9734
Max. virtual memory (cumulated for all children) (KiB): 16212

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.7213
system time used= 0.071989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1650
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= 22

runsolver used 0.037994 second user time and 0.078987 second system time

The end

Launcher Data 

Begin job on node32 at 2009-06-16 03:25:20
IDJOB=1877262
IDBENCH=1191
IDSOLVER=699
FILE ID=node32/1877262-1245115520
PBS_JOBID= 9363635
Free space on /tmp= 66344 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111216864.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877262-1245115520/watcher-1877262-1245115520 -o /tmp/evaluation-result-1877262-1245115520/solver-1877262-1245115520 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877262-1245115520.opb

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

MD5SUM BENCH= 01a11c78606c6281a399e7d01c40beb6
RANDOM SEED=599717568

node32.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:       1085632 kB
Buffers:         78444 kB
Cached:         794212 kB
SwapCached:        260 kB
Active:          85888 kB
Inactive:       801116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1085632 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4252 kB
Writeback:           0 kB
Mapped:          23776 kB
Slab:            68956 kB
Committed_AS:   140420 kB
PageTables:       1492 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66340 MiB
End job on node32 at 2009-06-16 03:25:51