Trace number 1878735

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 clSAT 33.7759 33.7833

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111222248.opb
MD5SUMa1b7d9ff85f22909961574d8ed062292
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 benchmark0.165974
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 1127
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: Clause 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-1878735-1245115805.opb
0.00/0.00	c File size is 9895 bytes.
0.00/0.00	c Highest Coefficient sum: 1127
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: 900
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      879    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
33.68/33.78	c      100    169      199     3711   18     1089    2820    100   6666 0.01
33.68/33.78	c      251    169      350     8766   25     1392    3103    251   8964 0.03
33.68/33.78	c      477    169      576    16646   28     1844    3414    477   9000 0.05
33.68/33.78	c      815    169      914    28573   31     2518    3756    815   8670 0.09
33.68/33.78	c     1324    169     1423    45820   32     3538    4132   1324   7314 0.18
33.68/33.78	c     2088    169     2187    73225   33     5065    4546   2088   5848 0.36
33.68/33.78	c     3235    169     3334   112765   33     7360    5001   3235   4486 0.72
33.68/33.78	c     4958    169     5057   175135   34    10805    5502   4958   3300 1.50
33.68/33.78	c     7543    169     4829   171454   35    10347    6053   4730   2955 2.55
33.68/33.78	c    11423    169     5585   231609   41    11863    6659   5486   2391 4.78
33.68/33.78	c    17246    169     4536   213498   47     9763    7325   4437   2038 8.46
33.68/33.78	c    25985    169     5747   230837   40    12186    8058   5648   1778 14.61
33.68/33.78	c    39097    169     6458   296424   45    13605    8864   6359   1571 24.87
33.68/33.78	c Backtracks by Clause: 0
33.68/33.78	c Backtracks by PB constraint: 0
33.68/33.78	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 
33.68/33.78	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
33.68/33.78	c   13    49374  12214    74250     7657   333709   7558   1461 33.77
33.68/33.78	s SATISFIABLE
33.68/33.78	c Total time: 33.772 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-1878735-1245115805/watcher-1878735-1245115805 -o /tmp/evaluation-result-1878735-1245115805/solver-1878735-1245115805 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1878735-1245115805.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: 1.00 1.00 1.03 3/64 31716
/proc/meminfo: memFree=1832360/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=10708 CPUtime=0
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179180795 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 2677 239 188 640 0 2033 0

[startup+0.064218 s]
/proc/loadavg: 1.00 1.00 1.03 3/64 31716
/proc/meminfo: memFree=1832360/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=10964 CPUtime=0.06
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 340 0 0 0 6 0 0 0 18 0 1 0 179180795 11227136 321 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 2741 321 195 640 0 2097 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 10964

[startup+0.101221 s]
/proc/loadavg: 1.00 1.00 1.03 3/64 31716
/proc/meminfo: memFree=1832360/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=11092 CPUtime=0.09
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 381 0 0 0 9 0 0 0 18 0 1 0 179180795 11358208 362 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 2773 362 195 640 0 2129 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11092

[startup+0.301241 s]
/proc/loadavg: 1.00 1.00 1.03 3/64 31716
/proc/meminfo: memFree=1832360/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=11732 CPUtime=0.29
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 520 0 0 0 29 0 0 0 19 0 1 0 179180795 12013568 501 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 2933 501 195 640 0 2289 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11732

[startup+0.701281 s]
/proc/loadavg: 1.00 1.00 1.03 3/64 31716
/proc/meminfo: memFree=1832360/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=12372 CPUtime=0.69
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 706 0 0 0 69 0 0 0 22 0 1 0 179180795 12668928 687 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 3093 687 195 640 0 2449 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12372

[startup+1.50136 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1829920/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=13392 CPUtime=1.5
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 962 0 0 0 149 1 0 0 25 0 1 0 179180795 13713408 943 1992294400 134512640 137136520 4294956256 18446744073709551615 134543971 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 3348 943 195 640 0 2704 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 13392

[startup+3.10153 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1828768/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=13904 CPUtime=3.09
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 1091 0 0 0 308 1 0 0 25 0 1 0 179180795 14237696 1072 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 3476 1072 195 640 0 2832 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13904

[startup+6.30185 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1827808/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=15168 CPUtime=6.29
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 1395 0 0 0 627 2 0 0 25 0 1 0 179180795 15532032 1376 1992294400 134512640 137136520 4294956256 18446744073709551615 134544384 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 3792 1376 195 640 0 3148 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 15168

[startup+12.7025 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1826464/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=15932 CPUtime=12.69
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 1576 0 0 0 1266 3 0 0 25 0 1 0 179180795 16314368 1557 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 3983 1557 195 640 0 3339 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 15932

[startup+25.5018 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1825952/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=16440 CPUtime=25.48
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 1711 0 0 0 2543 5 0 0 25 0 1 0 179180795 16834560 1692 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 4110 1692 195 640 0 3466 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16440

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

[startup+28.7011 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1825376/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=17076 CPUtime=28.68
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 1870 0 0 0 2862 6 0 0 25 0 1 0 179180795 17485824 1851 1992294400 134512640 137136520 4294956256 18446744073709551615 134544129 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 4269 1851 195 640 0 3625 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 17076

[startup+31.9054 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1825376/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=17076 CPUtime=31.89
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 1870 0 0 0 3182 7 0 0 25 0 1 0 179180795 17485824 1851 1992294400 134512640 137136520 4294956256 18446744073709551615 134543927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 4269 1851 195 640 0 3625 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 17076

[startup+32.7015 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1825376/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=17076 CPUtime=32.69
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 1870 0 0 0 3262 7 0 0 25 0 1 0 179180795 17485824 1851 1992294400 134512640 137136520 4294956256 18446744073709551615 134544259 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 4269 1851 195 640 0 3625 0
Current children cumulated CPU time (s) 32.69
Current children cumulated vsize (KiB) 17076

[startup+33.5016 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1825376/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=17076 CPUtime=33.49
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 1870 0 0 0 3342 7 0 0 25 0 1 0 179180795 17485824 1851 1992294400 134512640 137136520 4294956256 18446744073709551615 136502022 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 4269 1851 195 640 0 3625 0
Current children cumulated CPU time (s) 33.49
Current children cumulated vsize (KiB) 17076

[startup+33.7016 s]
/proc/loadavg: 1.00 1.00 1.03 2/65 31717
/proc/meminfo: memFree=1825376/2055920 swapFree=4182564/4192956
[pid=31716] ppid=31714 vsize=17076 CPUtime=33.68
/proc/31716/stat : 31716 (bsolo) R 31714 31716 31327 0 -1 4194304 1870 0 0 0 3361 7 0 0 25 0 1 0 179180795 17485824 1851 1992294400 134512640 137136520 4294956256 18446744073709551615 134544440 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31716/statm: 4269 1851 195 640 0 3625 0
Current children cumulated CPU time (s) 33.68
Current children cumulated vsize (KiB) 17076

Child status: 0
Real time (s): 33.7833
CPU time (s): 33.7759
CPU user time (s): 33.6999
CPU system time (s): 0.075988
CPU usage (%): 99.9781
Max. virtual memory (cumulated for all children) (KiB): 17076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.6999
system time used= 0.075988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1873
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= 46

runsolver used 0.032994 second user time and 0.070989 second system time

The end

Launcher Data 

Begin job on node17 at 2009-06-16 03:30:05
IDJOB=1878735
IDBENCH=1234
IDSOLVER=700
FILE ID=node17/1878735-1245115805
PBS_JOBID= 9363650
Free space on /tmp= 66356 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111222248.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1878735-1245115805/watcher-1878735-1245115805 -o /tmp/evaluation-result-1878735-1245115805/solver-1878735-1245115805 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1878735-1245115805.opb

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

MD5SUM BENCH= a1b7d9ff85f22909961574d8ed062292
RANDOM SEED=53712628

node17.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		: 3000.214
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		: 3000.214
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:       1832776 kB
Buffers:          9852 kB
Cached:         142052 kB
SwapCached:       4224 kB
Active:          34616 kB
Inactive:       125152 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1832776 kB
SwapTotal:     4192956 kB
SwapFree:      4182564 kB
Dirty:            4020 kB
Writeback:           0 kB
Mapped:          13688 kB
Slab:            49316 kB
Committed_AS:   151776 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= 66352 MiB
End job on node17 at 2009-06-16 03:30:39